Subject: [Shop-talk] Help identifying a chip

From: Battmain via Shop-talk <[email-masked]>
Date: Sat, 23 Feb 2019 05:07:29 +0000 (UTC)

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Finally got around to installing an amplified speaker I had sitting around =
for years.=C2=A0 It was supposed to be a simple install, but looks like I f=
ried something in the haste.=C2=A0
I already picked up the capacitor in the picture,=C2=A0 but I think the reg=
ulator might be fried also based on the burn marks.Seems there are differen=
t models of that regulator.=C2=A0 The amp is in a 12v application.=C2=A0 An=
ybody have any ideas as to what model regulator it is? (or what I could sub=
stitute it with? Will be getting it from that auction site. :) )=C2=A0Pictu=
re in the link...(that's the best I could get)=C2=A0https://i.imgur.com/FIf=
JA4O.jpg
I figure if I throw $5 at it in parts, it wouldn't hurt to try.=C2=A0

Brian
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<html><head></head><body><div>Finally got around to installing an amplified=
 speaker I had sitting around for years.&nbsp; It was supposed to be a simp=
le install, but looks like I fried something in the haste.&nbsp;</div><div>=
<br></div><div>I already picked up the capacitor in the picture,&nbsp; but =
I think the regulator might be fried also based on the burn marks.Seems the=
re are different models of that regulator.&nbsp; The amp is in a 12v applic=
ation.&nbsp; Anybody have any ideas as to what model regulator it is? (or w=
hat I could substitute it with? Will be getting it from that auction site. =
:) )&nbsp;</div><div>Picture in the link...(that's the best I could get)&nb=
sp;<a href=3D"https://i.imgur.com/FIfJA4O.jpg" rel=3D"nofollow" target=3D"_=
blank">https://i.imgur.com/FIfJA4O.jpg</a></div><div><br></div><div>I figur=
e if I throw $5 at it in parts, it wouldn't hurt to try.&nbsp;</div><div><b=
r></div><div><br></div><div>Brian</div><div class=3D"ydpb6d925fcyahoo-style=
-wrap" style=3D"font-family:Helvetica Neue, Helvetica, Arial, sans-serif;fo=
nt-size:16px;"></div></body></html>
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_______________________________________________

[email-masked]
Archive: http://www.team.net/pipermail/shop-talk

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From: Jeff Scarbrough via Shop-talk <[email-masked]>
Date: Sat, 23 Feb 2019 06:30:14 -0500

How about LM7805CT?

On Sat, Feb 23, 2019 at 2:16 AM Battmain via Shop-talk
<[email-masked]> wrote:
>
> Finally got around to installing an amplified speaker I had sitting around for years.  It was supposed to be a simple install, but looks like I fried something in the haste.
>
> I already picked up the capacitor in the picture,  but I think the regulator might be fried also based on the burn marks.Seems there are different models of that regulator.  The amp is in a 12v application.  Anybody have any ideas as to what model regulator it is? (or what I could substitute it with? Will be getting it from that auction site. :) )
> Picture in the link...(that's the best I could get) https://i.imgur.com/FIfJA4O.jpg
>
> I figure if I throw $5 at it in parts, it wouldn't hurt to try.
>
>
> Brian
> Donate: http://www.team.net/donate.html
> Suggested annual donation  $12.96
> Unsubscribe/Manage: http://autox.team.net/mailman/options/shop-talk/[email-masked]
>

[email-masked]

---

From: Battmain via Shop-talk <[email-masked]>
Date: Sat, 23 Feb 2019 13:35:58 +0000 (UTC)

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 I did look up that model, however, here is an example from this site...MC7=
805CT Datasheet, PDF - Alldatasheet

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MC7805CT Datasheet, PDF - Alldatasheet

alldatasheet.com

MC7805CT Datasheet, MC7805CT PDF, MC7805CT Data sheet, MC7805CT manual, MC7=
805CT pdf, MC7805CT, datenblatt, Elec...
 |

 |

 |

They list multiple models of that chip. The one I think is closest is...htt=
p://pdf1.alldatasheet.com/datasheet-pdf/view/82852/FAIRCHILD/MC7805CT.html
because of the variable output.=C2=A0 The amp does have level/volume pot on=
 it. The other datasheets in the list do not show a variable output.
Brian

    On Saturday, February 23, 2019, 6:30:21 AM EST, Jeff Scarbrough <fishpl=
[email-masked]> wrote: =20
=20
 How about LM7805CT?

On Sat, Feb 23, 2019 at 2:16 AM Battmain via Shop-talk
<[email-masked]> wrote:
>
> Finally got around to installing an amplified speaker I had sitting aroun=
d for years.=C2=A0 It was supposed to be a simple install, but looks like I=
 fried something in the haste.
>
> I already picked up the capacitor in the picture,=C2=A0 but I think the r=
egulator might be fried also based on the burn marks.Seems there are differ=
ent models of that regulator.=C2=A0 The amp is in a 12v application.=C2=A0 =
Anybody have any ideas as to what model regulator it is? (or what I could s=
ubstitute it with? Will be getting it from that auction site. :) )
> Picture in the link...(that's the best I could get) https://i.imgur.com/F=
IfJA4O.jpg
> Suggested annual donation=C2=A0 $12.96
> Unsubscribe/Manage: http://autox.team.net/mailman/options/shop-talk/fishp=
[email-masked]
> =20
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dy><div class=3D"ydp2bbfaeyahoo-style-wrap" style=3D"font-family:Helvetica =
Neue, Helvetica, Arial, sans-serif;font-size:16px;"><div></div>
        <div>I did look up that model, however, here is an example from thi=
s site...</div><div><a href=3D"http://www.alldatasheet.com/view.jsp?Searchw=
ord=3DMC7805CT" rel=3D"nofollow" target=3D"_blank" class=3D"enhancr_card_13=
28980195">MC7805CT Datasheet, PDF - Alldatasheet</a><br></div><div><br></di=
v><div id=3D"ydp3e0f82ebenhancr_card_1328980195" class=3D"ydp3e0f82ebyahoo-=
link-enhancr-card ydp3e0f82ebymail-preserve-class ydp3e0f82ebymail-preserve=
-style" style=3D"max-width: 400px; font-family: Helvetica Neue, Segoe UI, H=
elvetica, Arial, sans-serif; position: relative;" data-url=3D"http://www.al=
ldatasheet.com/view.jsp?Searchword=3DMC7805CT" data-type=3D"YENHANCER" data=
-size=3D"MEDIUM" contenteditable=3D"false"><a href=3D"http://www.alldatashe=
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;border-style:solid;border-color:rgb(224, 228, 233);border-radius:2px"><tbo=
dy><tr><td class=3D"ydp3e0f82ebcard-primary-image-cell" background=3D"https=
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5MOTOROLA.GIF.cf.jpg" bgcolor=3D"#000000" valign=3D"top" height=3D"175" sty=
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td class=3D"ydp3e0f82ebcard-overlay-cell" background=3D"https://s.yimg.com/=
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https://s.yimg.com/cv/ae/nq/storm/assets/enhancrV21/1/enhancr_gradient-400x=
175.png"/><v:textbox inset=3D"0,0,20px,0"><![endif]--><table border=3D"0" c=
lass=3D"ydp3e0f82ebyahoo-ignore-table" height=3D"175" style=3D"width: 100%;=
 min-height: 175px;"><tbody><tr><td class=3D"ydp3e0f82ebcard-richInfo2" sty=
le=3D"text-align:left;padding:15px 0 0 15px;vertical-align:top"></td><td cl=
ass=3D"ydp3e0f82ebcard-actions" style=3D"text-align:right;padding:15px 15px=
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if]--></td></tr></tbody></table></td></tr><tr><td><table border=3D"0" align=
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llpadding=3D"0" cellspacing=3D"0" style=3D"background:#fff;position:relativ=
e;z-index:2;width:100%;max-width:400px;border-radius:0 0 2px 2px;border-top=
:1px solid rgb(224, 228, 233)"><tbody><tr><td style=3D"background-color:#ff=
ffff;padding:16px 0 16px 12px;vertical-align:top;border-radius:0 0 0 2px"><=
/td><td style=3D"vertical-align:middle;padding:12px 24px 16px 12px;width:99=
%;font-family:Helvetica Neue, Segoe UI, Helvetica, Arial, sans-serif;border=
-radius:0 0 2px 0"><h2 class=3D"ydp3e0f82ebcard-title" style=3D"font-size: =
14px; line-height: 19px; margin: 0px 0px 6px; font-family: Helvetica Neue, =
Segoe UI, Helvetica, Arial, sans-serif; color: rgb(38, 40, 42);">MC7805CT D=
atasheet, PDF - Alldatasheet</h2><p class=3D"ydp3e0f82ebcard-richinfo-prima=
ry" style=3D"font-size:12px;line-height:16px;margin:0 0 4px 0;color:#979ba7=
">alldatasheet.com</p><p class=3D"ydp3e0f82ebcard-description" style=3D"fon=
t-size: 12px; line-height: 16px; margin: 0px; color: rgb(151, 155, 167);">M=
C7805CT Datasheet, MC7805CT PDF, MC7805CT Data sheet, MC7805CT manual, MC78=
05CT pdf, MC7805CT, datenblatt, Elec...</p></td></tr></tbody></table></td><=
/tr></tbody></table></td></tr></tbody></table></a><div class=3D"loadingSpin=
nerContainer" style=3D"position: absolute; top: 0px; width: 100%; height: 1=
00%; display: flex; align-items: center; justify-content: center; backgroun=
d-color: rgba(255, 255, 255, 0.3);"><div class=3D"D_F F_n gl_C ab_C H_6MGW =
o_h"><div class=3D"W_6MGW H_6MGW D_X ah_1PEzoz" data-test-id=3D"loading_ind=
icator"><svg class=3D"W_6MGW H_6MGW ah_Zq6hUs" viewBox=3D"0 0 24 24" width=
=3D"24" height=3D"24"><path class=3D"cdPFi_n cZ13pKbK_Z2aVTcY cZ1XO2Ji_dRA =
c2abBOT_EY cZ1vNhDV_rd cZV8aCd_pI ah_14s73" d=3D"M12,22C6.477,22,2,17.523,2=
,12S6.477,2,12,2"></path><path class=3D"cdPFi_n cZ13pKbK_Z2aVTcY cZ1XO2Ji_d=
RA c2abBOT_EY cZ1vNhDV_rd cZV8aCd_pI ah_14s73" d=3D"M12,2c5.523,0,10,4.477,=
10,10s-4.477,10-10,10"></path></svg></div></div></div></div><div><br></div>=
<div><br></div><div>They list multiple models of that chip. The one I think=
 is closest is...</div><div><a href=3D"http://pdf1.alldatasheet.com/datashe=
et-pdf/view/82852/FAIRCHILD/MC7805CT.html" rel=3D"nofollow" target=3D"_blan=
k">http://pdf1.alldatasheet.com/datasheet-pdf/view/82852/FAIRCHILD/MC7805CT=
.html</a><br></div><div>because of the variable output.&nbsp; The amp does =
have level/volume pot on it. The other datasheets in the list do not show a=
 variable output.</div><div><br></div><div>Brian</div><div><br></div><div><=
br></div>
       =20
        </div><div id=3D"ydpbf13efe9yahoo_quoted_1895949275" class=3D"ydpbf=
13efe9yahoo_quoted">
            <div style=3D"font-family:'Helvetica Neue', Helvetica, Arial, s=
ans-serif;font-size:13px;color:#26282a;">
               =20
                <div>
                    On Saturday, February 23, 2019, 6:30:21 AM EST, Jeff Sc=
arbrough &lt;[email-masked]&gt; wrote:
                </div>
                <div><br></div>
                <div><br></div>
                <div><div dir=3D"ltr">How about LM7805CT?<br clear=3D"none"=
><div class=3D"ydpbf13efe9yqt8133710530" id=3D"ydpbf13efe9yqtfd96835"><br c=
lear=3D"none">On Sat, Feb 23, 2019 at 2:16 AM Battmain via Shop-talk<br cle=
ar=3D"none">&lt;<a shape=3D"rect" href=3D"mailto:[email-masked]" =
rel=3D"nofollow" target=3D"_blank">[email-masked]</a>&gt; wrote:<=
br clear=3D"none">&gt;<br clear=3D"none">&gt; Finally got around to install=
ing an amplified speaker I had sitting around for years.&nbsp; It was suppo=
sed to be a simple install, but looks like I fried something in the haste.<=
br clear=3D"none">&gt;<br clear=3D"none">&gt; I already picked up the capac=
itor in the picture,&nbsp; but I think the regulator might be fried also ba=
sed on the burn marks.Seems there are different models of that regulator.&n=
bsp; The amp is in a 12v application.&nbsp; Anybody have any ideas as to wh=
at model regulator it is? (or what I could substitute it with? Will be gett=
ing it from that auction site. :) )<br clear=3D"none">&gt; Picture in the l=
ink...(that's the best I could get) <a shape=3D"rect" href=3D"https://i.img=
ur.com/FIfJA4O.jpg" rel=3D"nofollow" target=3D"_blank">https://i.imgur.com/=
FIfJA4O.jpg</a><br clear=3D"none">&gt;<br clear=3D"none">&gt; I figure if I=
 throw $5 at it in parts, it wouldn't hurt to try.<br clear=3D"none">&gt;<b=
r clear=3D"none">&gt;<br clear=3D"none">&gt; Brian</div><br clear=3D"none">=
&gt; _______________________________________________<br clear=3D"none">&gt;=
<br clear=3D"none">&gt; <a shape=3D"rect" href=3D"mailto:[email-masked]=
am.net" rel=3D"nofollow" target=3D"_blank">[email-masked]</a><br =
clear=3D"none">&gt; Donate: <a shape=3D"rect" href=3D"http://www.team.net/d=
onate.html" rel=3D"nofollow" target=3D"_blank">http://www.team.net/donate.h=
tml</a><br clear=3D"none">&gt; Suggested annual donation&nbsp; $12.96<br cl=
ear=3D"none">&gt; Archive: <a shape=3D"rect" href=3D"http://www.team.net/pi=
permail/shop-talk" rel=3D"nofollow" target=3D"_blank">http://www.team.net/p=
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cribe/Manage: <a shape=3D"rect" href=3D"http://autox.team.net/mailman/optio=
ns/shop-talk/[email-masked]" rel=3D"nofollow" target=3D"_blank">http:/=
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e">&gt;</div></div></div>
            </div>
        </div></body></html>
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[email-masked]

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From: Battmain via Shop-talk <[email-masked]>
Date: Sat, 23 Feb 2019 15:11:55 +0000 (UTC)

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 Could I use *any* MC7805CT as a replacement, as the first link shows diffe=
rent models of that regulator? Some models of the regulator have variable o=
utput as listed in the second link. I suspect the output should stay consta=
nt for power, but since the amp output section has the pot on it, was wonde=
ring if I should go with the adjustable output regulator or just stick with=
 a fixed output?

Brian

    On Saturday, February 23, 2019, 9:37:17 AM EST, Pat Horne <patintexas@i=
cloud.com> wrote: =20
=20
 This chip is a voltage regulator, not the audio amplifier. The part number=
 indicates that it is a 5v fixed regulator.=C2=A0
Peace,=C2=A0Pat

Pat Horne=C2=A0We support Habitat for Humanity

On Feb 23, 2019, at 7:35 AM, Battmain via Shop-talk <[email-masked]=
et> wrote:

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alldatasheet.com

 |

 |

IfJA4O.jpg
[email-masked]

[email-masked]

[email-masked]

 =20
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<html xmlns=3D"http://www.w3.org/1999/xhtml" xmlns:v=3D"urn:schemas-microso=
ft-com:vml" xmlns:o=3D"urn:schemas-microsoft-com:office:office"><head><!--[=
if gte mso 9]><xml><o:OfficeDocumentSettings><o:AllowPNG/><o:PixelsPerInch>=
96</o:PixelsPerInch></o:OfficeDocumentSettings></xml><![endif]--></head><bo=
dy><div class=3D"ydp65bf8037yahoo-style-wrap" style=3D"font-family:Helvetic=
a Neue, Helvetica, Arial, sans-serif;font-size:16px;"><div></div>
        <div>Could I use *any* MC7805CT as a replacement, as the first link=
 shows different models of that regulator? Some models of the regulator hav=
e variable output as listed in the second link. I suspect the output should=
 stay constant for power, but since the amp output section has the pot on i=
t, was wondering if I should go with the adjustable output regulator or jus=
t stick with a fixed output?</div><div><br></div><div><br></div><div>Brian<=
/div><div><br></div><div><br></div><div><br></div><div><br></div><div><br><=
/div>
       =20
        </div><div id=3D"ydp4db1db92yahoo_quoted_1335261782" class=3D"ydp4d=
b1db92yahoo_quoted">
            <div style=3D"font-family:'Helvetica Neue', Helvetica, Arial, s=
ans-serif;font-size:13px;color:#26282a;">
               =20
                <div>
                    On Saturday, February 23, 2019, 9:37:17 AM EST, Pat Hor=
ne &lt;[email-masked]&gt; wrote:
                </div>
                <div><br></div>
                <div><br></div>
                <div><div id=3D"ydp4db1db92yiv6690341354"><div>This chip is=
 a voltage regulator, not the audio amplifier. The part number indicates th=
at it is a 5v fixed regulator.&nbsp;<div><br clear=3D"none"></div><div>Peac=
e,&nbsp;</div><div>Pat<br clear=3D"none"><br clear=3D"none"><div dir=3D"ltr=
" id=3D"ydp4db1db92yiv6690341354AppleMailSignature">Pat Horne&nbsp;<div>We =
support Habitat for Humanity</div><div><br clear=3D"none"></div></div><div =
class=3D"ydp4db1db92yiv6690341354yqt0494001998" id=3D"ydp4db1db92yiv6690341=
354yqt20296"><div dir=3D"ltr"><br clear=3D"none">On Feb 23, 2019, at 7:35 A=
M, Battmain via Shop-talk &lt;<a shape=3D"rect" href=3D"mailto:shop-talk@au=
tox.team.net" rel=3D"nofollow" target=3D"_blank">[email-masked]</=
a>&gt; wrote:<br clear=3D"none"><br clear=3D"none"></div><div dir=3D"ltr"><=
div class=3D"ydp4db1db92yiv6690341354ydp2bbfaeyahoo-style-wrap" style=3D"fo=
nt-family:Helvetica Neue, Helvetica, Arial, sans-serif;font-size:16px;"><di=
v></div>
        <div>I did look up that model, however, here is an example from thi=
s site...</div><div><a shape=3D"rect" class=3D"ydp4db1db92yiv6690341354enha=
ncr_card_1328980195" href=3D"http://www.alldatasheet.com/view.jsp?Searchwor=
d=3DMC7805CT" rel=3D"nofollow" target=3D"_blank">MC7805CT Datasheet, PDF - =
Alldatasheet</a><br clear=3D"none"></div><div><br clear=3D"none"></div><div=
 class=3D"ydp4db1db92yiv6690341354ydp3e0f82ebyahoo-link-enhancr-card ydp4db=
1db92yiv6690341354ydp3e0f82ebymail-preserve-class ydp4db1db92yiv6690341354y=
dp3e0f82ebymail-preserve-style" id=3D"ydp4db1db92yiv6690341354ydp3e0f82eben=
hancr_card_1328980195" style=3D"max-width:400px;font-family:Helvetica Neue,=
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p://www.alldatasheet.com/view.jsp?Searchword=3DMC7805CT" data-type=3D"YENHA=
NCER" data-size=3D"MEDIUM"><a shape=3D"rect" class=3D"ydp4db1db92yiv6690341=
354ydp3e0f82ebyahoo-enhancr-cardlink" href=3D"http://www.alldatasheet.com/v=
iew.jsp?Searchword=3DMC7805CT" style=3D"text-decoration:none !important;col=
or:#000 !important;" rel=3D"nofollow" target=3D"_blank"><table class=3D"ydp=
4db1db92yiv6690341354ydp3e0f82ebcard-wrapper ydp4db1db92yiv6690341354ydp3e0=
f82ebyahoo-ignore-table" border=3D"0" cellpadding=3D"0" cellspacing=3D"0" s=
tyle=3D"max-width:400px;"><tbody><tr><td colspan=3D"1" rowspan=3D"1" width=
=3D"400"><table class=3D"ydp4db1db92yiv6690341354ydp3e0f82ebcard ydp4db1db9=
2yiv6690341354ydp3e0f82ebyahoo-ignore-table" border=3D"0" cellpadding=3D"0"=
 cellspacing=3D"0" width=3D"100%" style=3D"max-width:400px;border-width:1px=
;border-style:solid;border-color:rgb(224, 228, 233);border-radius:2px;"><tb=
ody><tr><td colspan=3D"1" rowspan=3D"1" valign=3D"top" class=3D"ydp4db1db92=
yiv6690341354ydp3e0f82ebcard-primary-image-cell" background=3D"https://s.yi=
mg.com/lo/api/res/1.2/TeVR71ZZqwVf2UQLj8SJ0Q--~A/Zmk9ZmlsbDt3PTQwMDtoPTIwMD=
thcHBpZD1pZXh0cmFjdA--/http://other.alldatasheet.com/company_logo/105MOTORO=
LA.GIF.cf.jpg" bgcolor=3D"#000000" height=3D"175" style=3D"background-color=
:rgb(0, 0, 0);background-size:cover;position:relative;border-radius:2px 2px=
 0px 0px;min-height:175px;"><table class=3D"ydp4db1db92yiv6690341354ydp3e0f=
82ebcard-overlay-container-table ydp4db1db92yiv6690341354ydp3e0f82ebyahoo-i=
gnore-table" border=3D"0" cellpadding=3D"0" cellspacing=3D"0" style=3D"widt=
h:100%;"><tbody><tr><td colspan=3D"1" rowspan=3D"1" valign=3D"top" class=3D=
"ydp4db1db92yiv6690341354ydp3e0f82ebcard-overlay-cell" background=3D"https:=
//s.yimg.com/cv/ae/nq/storm/assets/enhancrV21/1/enhancr_gradient-400x175.pn=
g" bgcolor=3D"transparent" style=3D"background-color:transparent;border-rad=
ius:2px 2px 0px 0px;min-height:175px;"><table class=3D"ydp4db1db92yiv669034=
1354ydp3e0f82ebyahoo-ignore-table" border=3D"0" height=3D"175" style=3D"wid=
th:100%;min-height:175px;"><tbody><tr><td colspan=3D"1" rowspan=3D"1" class=
=3D"ydp4db1db92yiv6690341354ydp3e0f82ebcard-richInfo2" style=3D"text-align:=
left;padding:15px 0 0 15px;vertical-align:top;"></td><td colspan=3D"1" rows=
pan=3D"1" class=3D"ydp4db1db92yiv6690341354ydp3e0f82ebcard-actions" style=
=3D"text-align:right;padding:15px 15px 0 0;vertical-align:top;"><div class=
=3D"ydp4db1db92yiv6690341354ydp3e0f82ebcard-share-container"></div></td></t=
r></tbody></table></td></tr></tbody></table></td></tr><tr><td colspan=3D"1"=
 rowspan=3D"1"><table align=3D"center" class=3D"ydp4db1db92yiv6690341354ydp=
3e0f82ebcard-info ydp4db1db92yiv6690341354ydp3e0f82ebyahoo-ignore-table" bo=
rder=3D"0" cellpadding=3D"0" cellspacing=3D"0" style=3D"background:#fff;pos=
ition:relative;z-index:2;width:100%;max-width:400px;border-radius:0 0 2px 2=
px;border-top:1px solid rgb(224, 228, 233);"><tbody><tr><td colspan=3D"1" r=
owspan=3D"1" style=3D"background-color:#ffffff;padding:16px 0 16px 12px;ver=
tical-align:top;border-radius:0 0 0 2px;"></td><td colspan=3D"1" rowspan=3D=
"1" style=3D"vertical-align:middle;padding:12px 24px 16px 12px;width:99%;fo=
nt-family:Helvetica Neue, Segoe UI, Helvetica, Arial, sans-serif;border-rad=
ius:0 0 2px 0;"><h2 class=3D"ydp4db1db92yiv6690341354ydp3e0f82ebcard-title"=
 style=3D"font-size:14px;line-height:19px;margin:0px 0px 6px;font-family:He=
lvetica Neue, Segoe UI, Helvetica, Arial, sans-serif;color:rgb(38, 40, 42);=
">MC7805CT Datasheet, PDF - Alldatasheet</h2><p class=3D"ydp4db1db92yiv6690=
341354ydp3e0f82ebcard-richinfo-primary" style=3D"font-size:12px;line-height=
:16px;margin:0 0 4px 0;color:#979ba7;">alldatasheet.com</p><p class=3D"ydp4=
db1db92yiv6690341354ydp3e0f82ebcard-description" style=3D"font-size:12px;li=
ne-height:16px;margin:0px;color:rgb(151, 155, 167);">MC7805CT Datasheet, MC=
7805CT PDF, MC7805CT Data sheet, MC7805CT manual, MC7805CT pdf, MC7805CT, d=
atenblatt, Elec...</p></td></tr></tbody></table></td></tr></tbody></table><=
/td></tr></tbody></table></a><div class=3D"ydp4db1db92yiv6690341354loadingS=
pinnerContainer" style=3D"width:100%;min-height:100%;"><div class=3D"ydp4db=
1db92yiv6690341354D_F ydp4db1db92yiv6690341354F_n ydp4db1db92yiv6690341354g=
l_C ydp4db1db92yiv6690341354ab_C ydp4db1db92yiv6690341354H_6MGW ydp4db1db92=
yiv6690341354o_h"><div class=3D"ydp4db1db92yiv6690341354W_6MGW ydp4db1db92y=
iv6690341354H_6MGW ydp4db1db92yiv6690341354D_X ydp4db1db92yiv6690341354ah_1=
PEzoz"></div></div></div></div><div><br clear=3D"none"></div><div><br clear=
=3D"none"></div><div>They list multiple models of that chip. The one I thin=
k is closest is...</div><div><a shape=3D"rect" href=3D"http://pdf1.alldatas=
heet.com/datasheet-pdf/view/82852/FAIRCHILD/MC7805CT.html" rel=3D"nofollow"=
 target=3D"_blank">http://pdf1.alldatasheet.com/datasheet-pdf/view/82852/FA=
IRCHILD/MC7805CT.html</a><br clear=3D"none"></div><div>because of the varia=
ble output.&nbsp; The amp does have level/volume pot on it. The other datas=
heets in the list do not show a variable output.</div><div><br clear=3D"non=
e"></div><div>Brian</div><div><br clear=3D"none"></div><div><br clear=3D"no=
ne"></div>
       =20
        </div><div class=3D"ydp4db1db92yiv6690341354ydpbf13efe9yahoo_quoted=
" id=3D"ydp4db1db92yiv6690341354ydpbf13efe9yahoo_quoted_1895949275">
            <div style=3D"font-family:'Helvetica Neue', Helvetica, Arial, s=
ans-serif;font-size:13px;color:#26282a;">
               =20
                <div>
                    On Saturday, February 23, 2019, 6:30:21 AM EST, Jeff Sc=
arbrough &lt;<a shape=3D"rect" href=3D"mailto:[email-masked]" rel=3D"n=
ofollow" target=3D"_blank">[email-masked]</a>&gt; wrote:
                </div>
                <div><br clear=3D"none"></div>
                <div><br clear=3D"none"></div>
                <div><div dir=3D"ltr">How about LM7805CT?<br clear=3D"none"=
><div class=3D"ydp4db1db92yiv6690341354ydpbf13efe9yqt8133710530" id=3D"ydp4=
db1db92yiv6690341354ydpbf13efe9yqtfd96835"><br clear=3D"none">On Sat, Feb 2=
3, 2019 at 2:16 AM Battmain via Shop-talk<br clear=3D"none">&lt;<a shape=3D=
"rect" href=3D"mailto:[email-masked]" rel=3D"nofollow" target=3D"=
_blank">[email-masked]</a>&gt; wrote:<br clear=3D"none">&gt;<br c=
lear=3D"none">&gt; Finally got around to installing an amplified speaker I =
had sitting around for years.&nbsp; It was supposed to be a simple install,=
 but looks like I fried something in the haste.<br clear=3D"none">&gt;<br c=
lear=3D"none">&gt; I already picked up the capacitor in the picture,&nbsp; =
but I think the regulator might be fried also based on the burn marks.Seems=
 there are different models of that regulator.&nbsp; The amp is in a 12v ap=
plication.&nbsp; Anybody have any ideas as to what model regulator it is? (=
or what I could substitute it with? Will be getting it from that auction si=
te. :) )<br clear=3D"none">&gt; Picture in the link...(that's the best I co=
uld get) <a shape=3D"rect" href=3D"https://i.imgur.com/FIfJA4O.jpg" rel=3D"=
nofollow" target=3D"_blank">https://i.imgur.com/FIfJA4O.jpg</a><br clear=3D=
"none">&gt;<br clear=3D"none">&gt; I figure if I throw $5 at it in parts, i=
t wouldn't hurt to try.<br clear=3D"none">&gt;<br clear=3D"none">&gt;<br cl=
ear=3D"none">&gt; Brian</div><br clear=3D"none">&gt; ______________________=
_________________________<br clear=3D"none">&gt;<br clear=3D"none">&gt; <a =
shape=3D"rect" href=3D"mailto:[email-masked]" rel=3D"nofollow" ta=
rget=3D"_blank">[email-masked]</a><br clear=3D"none">&gt; Donate:=
 <a shape=3D"rect" href=3D"http://www.team.net/donate.html" rel=3D"nofollow=
" target=3D"_blank">http://www.team.net/donate.html</a><br clear=3D"none">&=
gt; Suggested annual donation&nbsp; $12.96<br clear=3D"none">&gt; Archive: =
<a shape=3D"rect" href=3D"http://www.team.net/pipermail/shop-talk" rel=3D"n=
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lear=3D"none">&gt;<br clear=3D"none">&gt; Unsubscribe/Manage: <a shape=3D"r=
ect" href=3D"http://autox.team.net/mailman/options/shop-talk/fishplate@gmai=
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ions/shop-talk/[email-masked]</a><div class=3D"ydp4db1db92yiv669034135=
4ydpbf13efe9yqt8133710530" id=3D"ydp4db1db92yiv6690341354ydpbf13efe9yqtfd59=
736"><br clear=3D"none">&gt;</div></div></div>
            </div>
        </div></div></div><div dir=3D"ltr"><span>__________________________=
_____________________</span><br clear=3D"none"><span></span><br clear=3D"no=
ne"><span><a shape=3D"rect" href=3D"mailto:[email-masked]" rel=3D=
"nofollow" target=3D"_blank">[email-masked]</a></span><br clear=
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e.html" rel=3D"nofollow" target=3D"_blank">http://www.team.net/donate.html<=
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span><br clear=3D"none"><span>Archive: <a shape=3D"rect" href=3D"http://www=
.team.net/pipermail/shop-talk" rel=3D"nofollow" target=3D"_blank">http://ww=
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none"></div></div></div></div></div>
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------=_Part_3920944_145138588.1550934715322--

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[email-masked]

--===============1153773050195211580==--

---

From: Jeff Scarbrough via Shop-talk <[email-masked]>
Date: Sat, 23 Feb 2019 12:13:14 -0500

--===============3392835605809421457==

--0000000000000d1522058292d368

On Sat, Feb 23, 2019 at 11:07 AM Battmain via Shop-talk <
[email-masked]> wrote:

> Could I use *any* MC7805CT as a replacement, as the first link shows
> different models of that regulator? Some models of the regulator have
> variable output as listed in the second link. I suspect the output should
> stay constant for power, but since the amp output section has the pot on
> it, was wondering if I should go with the adjustable output regulator or
> just stick with a fixed output?
> <http://www.team.net/pipermail/shop-talk>
>

I'm pretty sure it's the same component either way...you can create
circuits such that the output is adjustable, but the component is the
same.  I can't see the datasheet you reference, though.

--0000000000000d1522058292d368
Content-Transfer-Encoding: quoted-printable

<div dir=3D"ltr"><div dir=3D"ltr"><br></div><br><div class=3D"gmail_quote">=
<div dir=3D"ltr" class=3D"gmail_attr">On Sat, Feb 23, 2019 at 11:07 AM Batt=
main via Shop-talk &lt;<a href=3D"mailto:[email-masked]">shop-tal=
[email-masked]</a>&gt; wrote:<br></div><blockquote class=3D"gmail_quote" =
style=3D"margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);pa=
dding-left:1ex"><div><div class=3D"gmail-m_-8862567512620686849ydp65bf8037y=
ahoo-style-wrap" style=3D"font-family:&quot;Helvetica Neue&quot;,Helvetica,=
Arial,sans-serif;font-size:16px"><div></div>
        <div>Could I use *any* MC7805CT as a replacement, as the first link=
 shows different models of that regulator? Some models of the regulator hav=
e variable output as listed in the second link. I suspect the output should=
 stay constant for power, but since the amp output section has the pot on i=
t, was wondering if I should go with the adjustable output regulator or jus=
t stick with a fixed output?</div></div><div id=3D"gmail-m_-886256751262068=
6849ydp4db1db92yahoo_quoted_1335261782" class=3D"gmail-m_-88625675126206868=
49ydp4db1db92yahoo_quoted"><div style=3D"font-family:&quot;Helvetica Neue&q=
uot;,Helvetica,Arial,sans-serif;font-size:13px;color:rgb(38,40,42)"><div><d=
iv id=3D"gmail-m_-8862567512620686849ydp4db1db92yiv6690341354"><div><div><d=
iv dir=3D"ltr"><span><a shape=3D"rect" href=3D"http://www.team.net/pipermai=
l/shop-talk" rel=3D"nofollow" target=3D"_blank"></a></span></div></div></di=
v></div></div></div></div></div></blockquote><div><br>
<br>
</div><div>I&#39;m pretty sure it&#39;s the same component either way...you=
 can create circuits such that the output is adjustable, but the component =
is the same.=C2=A0 I can&#39;t see the datasheet you reference, though.</di=
v></div></div>

--0000000000000d1522058292d368--

--===============3392835605809421457==
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[email-masked]

--===============3392835605809421457==--

---

From: Pat Horne via Shop-talk <[email-masked]>
Date: Sat, 23 Feb 2019 08:37:11 -0600

--===============7817598452985519297==
	boundary=Apple-Mail-D83D5E39-B43D-4347-9E87-6F105D60FE0C
Content-Transfer-Encoding: 7bit

--Apple-Mail-D83D5E39-B43D-4347-9E87-6F105D60FE0C
	charset=us-ascii
Content-Transfer-Encoding: quoted-printable

This chip is a voltage regulator, not the audio amplifier. The part number i=
ndicates that it is a 5v fixed regulator.=20

Peace,=20
Pat

Pat Horne=20
We support Habitat for Humanity

On Feb 23, 2019, at 7:35 AM, Battmain via Shop-talk <[email-masked]=
t> wrote:

I did look up that model, however, here is an example from this site...
MC7805CT Datasheet, PDF - Alldatasheet

MC7805CT Datasheet, PDF - Alldatasheet
alldatasheet.com
MC7805CT Datasheet, MC7805CT PDF, MC7805CT Data sheet, MC7805CT manual, MC78=
05CT pdf, MC7805CT, datenblatt, Elec...

They list multiple models of that chip. The one I think is closest is...
http://pdf1.alldatasheet.com/datasheet-pdf/view/82852/FAIRCHILD/MC7805CT.htm=
l
because of the variable output.  The amp does have level/volume pot on it. T=
he other datasheets in the list do not show a variable output.

Brian

On Saturday, February 23, 2019, 6:30:21 AM EST, Jeff Scarbrough <fishplate@g=
mail.com> wrote:

How about LM7805CT?

On Sat, Feb 23, 2019 at 2:16 AM Battmain via Shop-talk
<[email-masked]> wrote:
>
> Finally got around to installing an amplified speaker I had sitting around=
 for years.  It was supposed to be a simple install, but looks like I fried s=
omething in the haste.
>
> I already picked up the capacitor in the picture,  but I think the regulat=
or might be fried also based on the burn marks.Seems there are different mod=
els of that regulator.  The amp is in a 12v application.  Anybody have any i=
deas as to what model regulator it is? (or what I could substitute it with? W=
ill be getting it from that auction site. :) )
> Picture in the link...(that's the best I could get) https://i.imgur.com/FI=
fJA4O.jpg

> Unsubscribe/Manage: http://autox.team.net/mailman/options/shop-talk/fishpl=
[email-masked]

[email-masked]

[email-masked]

--Apple-Mail-D83D5E39-B43D-4347-9E87-6F105D60FE0C
	charset=utf-8
Content-Transfer-Encoding: quoted-printable

<html><head><meta http-equiv=3D"content-type" content=3D"text/html; charset=3D=
utf-8"></head><body dir=3D"auto">This chip is a voltage regulator, not the a=
udio amplifier. The part number indicates that it is a 5v fixed regulator.&n=
bsp;<div><br></div><div>Peace,&nbsp;</div><div>Pat<br><br><div id=3D"AppleMa=
ilSignature" dir=3D"ltr">Pat Horne&nbsp;<div>We support Habitat for Humanity=
</div><div><br></div></div><div dir=3D"ltr"><br>On Feb 23, 2019, at 7:35 AM,=
 Battmain via Shop-talk &lt;<a href=3D"mailto:[email-masked]">shop=
[email-masked]</a>&gt; wrote:<br><br></div><div dir=3D"ltr"><!--[if gt=
e mso 9]><xml><o:OfficeDocumentSettings><o:AllowPNG/><o:PixelsPerInch>96</o:=
PixelsPerInch></o:OfficeDocumentSettings></xml><![endif]--><div class=3D"ydp=
2bbfaeyahoo-style-wrap" style=3D"font-family:Helvetica Neue, Helvetica, Aria=
l, sans-serif;font-size:16px;"><div></div>
        <div>I did look up that model, however, here is an example from this=
 site...</div><div><a href=3D"http://www.alldatasheet.com/view.jsp?Searchwor=
d=3DMC7805CT" rel=3D"nofollow" target=3D"_blank" class=3D"enhancr_card_13289=
80195">MC7805CT Datasheet, PDF - Alldatasheet</a><br></div><div><br></div><d=
iv id=3D"ydp3e0f82ebenhancr_card_1328980195" class=3D"ydp3e0f82ebyahoo-link-=
enhancr-card ydp3e0f82ebymail-preserve-class ydp3e0f82ebymail-preserve-style=
" style=3D"max-width: 400px; font-family: Helvetica Neue, Segoe UI, Helvetic=
a, Arial, sans-serif; position: relative;" data-url=3D"http://www.alldatashe=
et.com/view.jsp?Searchword=3DMC7805CT" data-type=3D"YENHANCER" data-size=3D"=
MEDIUM" contenteditable=3D"false"><a href=3D"http://www.alldatasheet.com/vie=
w.jsp?Searchword=3DMC7805CT" style=3D"text-decoration:none !important;color:=
#000 !important" class=3D"ydp3e0f82ebyahoo-enhancr-cardlink" rel=3D"nofollow=
" target=3D"_blank"><table border=3D"0" class=3D"ydp3e0f82ebcard-wrapper ydp=
3e0f82ebyahoo-ignore-table" cellpadding=3D"0" cellspacing=3D"0" style=3D"max=
-width:400px"><tbody><tr><td width=3D"400"><table border=3D"0" class=3D"ydp3=
e0f82ebcard ydp3e0f82ebyahoo-ignore-table" cellpadding=3D"0" cellspacing=3D"=
0" width=3D"100%" style=3D"max-width:400px;border-width:1px;border-style:sol=
id;border-color:rgb(224, 228, 233);border-radius:2px"><tbody><tr><td class=3D=
"ydp3e0f82ebcard-primary-image-cell" background=3D"https://s.yimg.com/lo/api=
/res/1.2/TeVR71ZZqwVf2UQLj8SJ0Q--~A/Zmk9ZmlsbDt3PTQwMDtoPTIwMDthcHBpZD1pZXh0=
cmFjdA--/http://other.alldatasheet.com/company_logo/105MOTOROLA.GIF.cf.jpg" b=
gcolor=3D"#000000" valign=3D"top" height=3D"175" style=3D"background-color: r=
gb(0, 0, 0); background-size: cover; position: relative; border-radius: 2px 2=
px 0px 0px; min-height: 175px;"><!--[if gte mso 9]><v:rect fill=3D"true" str=
oke=3D"false" style=3D"width:396px;height:175px;position:absolute;top:0;left=
:0;"><v:fill type=3D"frame" color=3D"#000000" src=3D"https://s.yimg.com/lo/a=
pi/res/1.2/TeVR71ZZqwVf2UQLj8SJ0Q--~A/Zmk9ZmlsbDt3PTQwMDtoPTIwMDthcHBpZD1pZX=
h0cmFjdA--/http://other.alldatasheet.com/company_logo/105MOTOROLA.GIF.cf.jpg=
"/></v:rect><![endif]--><table border=3D"0" class=3D"ydp3e0f82ebcard-overlay=
-container-table ydp3e0f82ebyahoo-ignore-table" cellpadding=3D"0" cellspacin=
g=3D"0" style=3D"width:100%"><tbody><tr><td class=3D"ydp3e0f82ebcard-overlay=
-cell" background=3D"https://s.yimg.com/cv/ae/nq/storm/assets/enhancrV21/1/e=
nhancr_gradient-400x175.png" bgcolor=3D"transparent" valign=3D"top" style=3D=
"background-color: transparent; border-radius: 2px 2px 0px 0px; min-height: 1=
75px;"><!--[if gte mso 9]><v:rect fill=3D"true" stroke=3D"false" style=3D"wi=
dth:396px;height:175px;position:absolute;top:-18px;left:0;"><v:fill type=3D"=
pattern" color=3D"#000000" src=3D"https://s.yimg.com/cv/ae/nq/storm/assets/e=
nhancrV21/1/enhancr_gradient-400x175.png"/><v:textbox inset=3D"0,0,20px,0"><=
![endif]--><table border=3D"0" class=3D"ydp3e0f82ebyahoo-ignore-table" heigh=
t=3D"175" style=3D"width: 100%; min-height: 175px;"><tbody><tr><td class=3D"=
ydp3e0f82ebcard-richInfo2" style=3D"text-align:left;padding:15px 0 0 15px;ve=
rtical-align:top"></td><td class=3D"ydp3e0f82ebcard-actions" style=3D"text-a=
lign:right;padding:15px 15px 0 0;vertical-align:top"><div class=3D"ydp3e0f82=
ebcard-share-container"></div></td></tr></tbody></table><!--[if gte mso 9]><=
/v:textbox></v:rect><![endif]--></td></tr></tbody></table></td></tr><tr><td>=
<table border=3D"0" align=3D"center" class=3D"ydp3e0f82ebcard-info ydp3e0f82=
ebyahoo-ignore-table" cellpadding=3D"0" cellspacing=3D"0" style=3D"backgroun=
d:#fff;position:relative;z-index:2;width:100%;max-width:400px;border-radius:=
0 0 2px 2px;border-top:1px solid rgb(224, 228, 233)"><tbody><tr><td style=3D=
"background-color:#ffffff;padding:16px 0 16px 12px;vertical-align:top;border=
-radius:0 0 0 2px"></td><td style=3D"vertical-align:middle;padding:12px 24px=
 16px 12px;width:99%;font-family:Helvetica Neue, Segoe UI, Helvetica, Arial,=
 sans-serif;border-radius:0 0 2px 0"><h2 class=3D"ydp3e0f82ebcard-title" sty=
le=3D"font-size: 14px; line-height: 19px; margin: 0px 0px 6px; font-family: H=
elvetica Neue, Segoe UI, Helvetica, Arial, sans-serif; color: rgb(38, 40, 42=
);">MC7805CT Datasheet, PDF - Alldatasheet</h2><p class=3D"ydp3e0f82ebcard-r=
ichinfo-primary" style=3D"font-size:12px;line-height:16px;margin:0 0 4px 0;c=
olor:#979ba7">alldatasheet.com</p><p class=3D"ydp3e0f82ebcard-description" s=
tyle=3D"font-size: 12px; line-height: 16px; margin: 0px; color: rgb(151, 155=
, 167);">MC7805CT Datasheet, MC7805CT PDF, MC7805CT Data sheet, MC7805CT man=
ual, MC7805CT pdf, MC7805CT, datenblatt, Elec...</p></td></tr></tbody></tabl=
e></td></tr></tbody></table></td></tr></tbody></table></a><div class=3D"load=
ingSpinnerContainer" style=3D"position: absolute; top: 0px; width: 100%; hei=
ght: 100%; display: flex; align-items: center; justify-content: center; back=
ground-color: rgba(255, 255, 255, 0.3);"><div class=3D"D_F F_n gl_C ab_C H_6=
MGW o_h"><div class=3D"W_6MGW H_6MGW D_X ah_1PEzoz" data-test-id=3D"loading_=
indicator"><svg class=3D"W_6MGW H_6MGW ah_Zq6hUs" viewBox=3D"0 0 24 24" widt=
h=3D"24" height=3D"24"><path class=3D"cdPFi_n cZ13pKbK_Z2aVTcY cZ1XO2Ji_dRA c=
2abBOT_EY cZ1vNhDV_rd cZV8aCd_pI ah_14s73" d=3D"M12,22C6.477,22,2,17.523,2,1=
2S6.477,2,12,2"></path><path class=3D"cdPFi_n cZ13pKbK_Z2aVTcY cZ1XO2Ji_dRA c=
2abBOT_EY cZ1vNhDV_rd cZV8aCd_pI ah_14s73" d=3D"M12,2c5.523,0,10,4.477,10,10=
s-4.477,10-10,10"></path></svg></div></div></div></div><div><br></div><div><=
br></div><div>They list multiple models of that chip. The one I think is clo=
sest is...</div><div><a href=3D"http://pdf1.alldatasheet.com/datasheet-pdf/v=
iew/82852/FAIRCHILD/MC7805CT.html" rel=3D"nofollow" target=3D"_blank">http:/=
/pdf1.alldatasheet.com/datasheet-pdf/view/82852/FAIRCHILD/MC7805CT.html</a><=
br></div><div>because of the variable output.&nbsp; The amp does have level/=
volume pot on it. The other datasheets in the list do not show a variable ou=
tput.</div><div><br></div><div>Brian</div><div><br></div><div><br></div>
       =20
        </div><div id=3D"ydpbf13efe9yahoo_quoted_1895949275" class=3D"ydpbf1=
3efe9yahoo_quoted">
            <div style=3D"font-family:'Helvetica Neue', Helvetica, Arial, sa=
ns-serif;font-size:13px;color:#26282a;">
               =20
                <div>
                    On Saturday, February 23, 2019, 6:30:21 AM EST, Jeff Sca=
rbrough &lt;<a href=3D"mailto:[email-masked]">[email-masked]</a>&g=
t; wrote:
                </div>
                <div><br></div>
                <div><br></div>
                <div><div dir=3D"ltr">How about LM7805CT?<br clear=3D"none">=
<div class=3D"ydpbf13efe9yqt8133710530" id=3D"ydpbf13efe9yqtfd96835"><br cle=
ar=3D"none">On Sat, Feb 23, 2019 at 2:16 AM Battmain via Shop-talk<br clear=3D=
"none">&lt;<a shape=3D"rect" href=3D"mailto:[email-masked]" rel=3D=
"nofollow" target=3D"_blank">[email-masked]</a>&gt; wrote:<br clea=
r=3D"none">&gt;<br clear=3D"none">&gt; Finally got around to installing an a=
mplified speaker I had sitting around for years.&nbsp; It was supposed to be=
 a simple install, but looks like I fried something in the haste.<br clear=3D=
"none">&gt;<br clear=3D"none">&gt; I already picked up the capacitor in the p=
icture,&nbsp; but I think the regulator might be fried also based on the bur=
n marks.Seems there are different models of that regulator.&nbsp; The amp is=
 in a 12v application.&nbsp; Anybody have any ideas as to what model regulat=
or it is? (or what I could substitute it with? Will be getting it from that a=
uction site. :) )<br clear=3D"none">&gt; Picture in the link...(that's the b=
est I could get) <a shape=3D"rect" href=3D"https://i.imgur.com/FIfJA4O.jpg" r=
el=3D"nofollow" target=3D"_blank">https://i.imgur.com/FIfJA4O.jpg</a><br cle=
ar=3D"none">&gt;<br clear=3D"none">&gt; I figure if I throw $5 at it in part=
s, it wouldn't hurt to try.<br clear=3D"none">&gt;<br clear=3D"none">&gt;<br=
 clear=3D"none">&gt; Brian</div><br clear=3D"none">&gt; ____________________=
___________________________<br clear=3D"none">&gt;<br clear=3D"none">&gt; <a=
 shape=3D"rect" href=3D"mailto:[email-masked]" rel=3D"nofollow" ta=
rget=3D"_blank">[email-masked]</a><br clear=3D"none">&gt; Donate: <=
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alk/[email-masked]</a><div class=3D"ydpbf13efe9yqt8133710530" id=3D"ydp=
bf13efe9yqtfd59736"><br clear=3D"none">&gt;</div></div></div>
            </div>
        </div></div><div dir=3D"ltr"><span>_________________________________=
______________</span><br><span></span><br><span><a href=3D"mailto:Shop-talk@=
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--===============7817598452985519297==
Content-Transfer-Encoding: 7bit
Content-Disposition: inline

[email-masked]

--===============7817598452985519297==--

---

From: John Innis via Shop-talk <[email-masked]>
Date: Sat, 23 Feb 2019 10:29:40 -0600

--===============3598234482545617379==

--0000000000008a37f605829237f9

A 7805 is a fixed regulator.  There are other parts in the linear SERIES
that are variable output, but if it has a 7805 part number, it will always
output a fixed 5v.

On Sat, Feb 23, 2019 at 10:08 AM Battmain via Shop-talk <
[email-masked]> wrote:

> On Saturday, February 23, 2019, 9:37:17 AM EST, Pat Horne <
> [email-masked]> wrote:
>
>
> This chip is a voltage regulator, not the audio amplifier. The part number
> indicates that it is a 5v fixed regulator.
>
> Peace,
> Pat
>
> Pat Horne
> On Feb 23, 2019, at 7:35 AM, Battmain via Shop-talk <
> <http://www.alldatasheet.com/view.jsp?Searchword=MC7805CT>
>
> MC7805CT Datasheet, MC7805CT PDF, MC7805CT Data sheet, MC7805CT manual,
> MC7805CT pdf, MC7805CT, datenblatt, Elec...
> <http://www.alldatasheet.com/view.jsp?Searchword=MC7805CT>
>
>
> http://pdf1.alldatasheet.com/datasheet-pdf/view/82852/FAIRCHILD/MC7805CT.html
> because of the variable output.  The amp does have level/volume pot on it.
> The other datasheets in the list do not show a variable output.
>
> Brian
>
>
> On Saturday, February 23, 2019, 6:30:21 AM EST, Jeff Scarbrough <
> [email-masked]> wrote:
>
>
> How about LM7805CT?
>
> > Finally got around to installing an amplified speaker I had sitting
> around for years.  It was supposed to be a simple install, but looks like I
> > I already picked up the capacitor in the picture,  but I think the
> regulator might be fried also based on the burn marks.Seems there are
> different models of that regulator.  The amp is in a 12v application.
> Anybody have any ideas as to what model regulator it is? (or what I could
> substitute it with? Will be getting it from that auction site. :) )
> > Unsubscribe/Manage:
> http://autox.team.net/mailman/options/shop-talk/[email-masked]
>
> >
> Unsubscribe/Manage:
> http://autox.team.net/mailman/options/shop-talk/[email-masked]
>
> Unsubscribe/Manage:
> http://autox.team.net/mailman/options/shop-talk/[email-masked]
>
>

-- 
=================================
= Never offend people with style when you   =
= can offend with substance --- Sam Brown  =
=================================

--0000000000008a37f605829237f9
Content-Transfer-Encoding: quoted-printable

<div dir=3D"ltr">A 7805 is a fixed regulator.=C2=A0 There are other parts i=
n the linear SERIES that are variable output, but if it has a 7805 part num=
ber, it will always output a fixed 5v.=C2=A0 <br></div><br><div class=3D"gm=
ail_quote"><div dir=3D"ltr" class=3D"gmail_attr">On Sat, Feb 23, 2019 at 10=
:08 AM Battmain via Shop-talk &lt;<a href=3D"mailto:[email-masked]=
t">[email-masked]</a>&gt; wrote:<br></div><blockquote class=3D"gm=
ail_quote" style=3D"margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,=
204,204);padding-left:1ex"><div><div class=3D"gmail-m_4970131661470459166yd=
p65bf8037yahoo-style-wrap" style=3D"font-family:Helvetica Neue,Helvetica,Ar=
ial,sans-serif;font-size:16px"><div></div>
        <div>Could I use *any* MC7805CT as a replacement, as the first link=
 shows different models of that regulator? Some models of the regulator hav=
e variable output as listed in the second link. I suspect the output should=
 stay constant for power, but since the amp output section has the pot on i=
t, was wondering if I should go with the adjustable output regulator or jus=
t stick with a fixed output?</div><div><br></div><div><br></div><div>Brian<=
/div><div><br></div><div><br></div><div><br></div><div><br></div><div><br><=
/div>
       =20
        </div><div id=3D"gmail-m_4970131661470459166ydp4db1db92yahoo_quoted=
_1335261782" class=3D"gmail-m_4970131661470459166ydp4db1db92yahoo_quoted">
            <div style=3D"font-family:&quot;Helvetica Neue&quot;,Helvetica,=
Arial,sans-serif;font-size:13px;color:rgb(38,40,42)">
               =20
                <div>
                    On Saturday, February 23, 2019, 9:37:17 AM EST, Pat Hor=
ne &lt;<a href=3D"mailto:[email-masked]" target=3D"_blank">patintexa=
[email-masked]</a>&gt; wrote:
                </div>
                <div><br></div>
                <div><br></div>
                <div><div id=3D"gmail-m_4970131661470459166ydp4db1db92yiv66=
90341354"><div>This chip is a voltage regulator, not the audio amplifier. T=
he part number indicates that it is a 5v fixed regulator.=C2=A0<div><br cle=
ar=3D"none"></div><div>Peace,=C2=A0</div><div>Pat<br clear=3D"none"><br cle=
ar=3D"none"><div dir=3D"ltr" id=3D"gmail-m_4970131661470459166ydp4db1db92yi=
v6690341354AppleMailSignature">Pat Horne=C2=A0<div>We support Habitat for H=
umanity</div><div><br clear=3D"none"></div></div><div class=3D"gmail-m_4970=
131661470459166ydp4db1db92yiv6690341354yqt0494001998" id=3D"gmail-m_4970131=
661470459166ydp4db1db92yiv6690341354yqt20296"><div dir=3D"ltr"><br clear=3D=
"none">On Feb 23, 2019, at 7:35 AM, Battmain via Shop-talk &lt;<a shape=3D"=
rect" href=3D"mailto:[email-masked]" rel=3D"nofollow" target=3D"_=
blank">[email-masked]</a>&gt; wrote:<br clear=3D"none"><br clear=
=3D"none"></div><div dir=3D"ltr"><div class=3D"gmail-m_4970131661470459166y=
dp4db1db92yiv6690341354ydp2bbfaeyahoo-style-wrap" style=3D"font-family:Helv=
etica Neue,Helvetica,Arial,sans-serif;font-size:16px"><div></div>
        <div>I did look up that model, however, here is an example from thi=
s site...</div><div><a shape=3D"rect" class=3D"gmail-m_4970131661470459166y=
dp4db1db92yiv6690341354enhancr_card_1328980195" href=3D"http://www.alldatas=
heet.com/view.jsp?Searchword=3DMC7805CT" rel=3D"nofollow" target=3D"_blank"=
>MC7805CT Datasheet, PDF - Alldatasheet</a><br clear=3D"none"></div><div><b=
r clear=3D"none"></div><div class=3D"gmail-m_4970131661470459166ydp4db1db92=
yiv6690341354ydp3e0f82ebyahoo-link-enhancr-card gmail-m_4970131661470459166=
ydp4db1db92yiv6690341354ydp3e0f82ebymail-preserve-class gmail-m_49701316614=
70459166ydp4db1db92yiv6690341354ydp3e0f82ebymail-preserve-style" id=3D"gmai=
l-m_4970131661470459166ydp4db1db92yiv6690341354ydp3e0f82ebenhancr_card_1328=
980195" style=3D"max-width:400px;font-family:Helvetica Neue,Segoe UI,Helvet=
ica,Arial,sans-serif"><a shape=3D"rect" class=3D"gmail-m_497013166147045916=
6ydp4db1db92yiv6690341354ydp3e0f82ebyahoo-enhancr-cardlink" href=3D"http://=
www.alldatasheet.com/view.jsp?Searchword=3DMC7805CT" style=3D"text-decorati=
on:none;color:rgb(0,0,0)" rel=3D"nofollow" target=3D"_blank"><table class=
=3D"gmail-m_4970131661470459166ydp4db1db92yiv6690341354ydp3e0f82ebcard-wrap=
per gmail-m_4970131661470459166ydp4db1db92yiv6690341354ydp3e0f82ebyahoo-ign=
ore-table" style=3D"max-width:400px" cellspacing=3D"0" cellpadding=3D"0" bo=
rder=3D"0"><tbody><tr><td colspan=3D"1" rowspan=3D"1" width=3D"400"><table =
class=3D"gmail-m_4970131661470459166ydp4db1db92yiv6690341354ydp3e0f82ebcard=
 gmail-m_4970131661470459166ydp4db1db92yiv6690341354ydp3e0f82ebyahoo-ignore=
-table" style=3D"max-width:400px;border-width:1px;border-style:solid;border=
-color:rgb(224,228,233);border-radius:2px" width=3D"100%" cellspacing=3D"0"=
 cellpadding=3D"0" border=3D"0"><tbody><tr><td colspan=3D"1" rowspan=3D"1" =
class=3D"gmail-m_4970131661470459166ydp4db1db92yiv6690341354ydp3e0f82ebcard=
-primary-image-cell" style=3D"background-color:rgb(0,0,0);background-size:c=
over;border-radius:2px 2px 0px 0px;min-height:175px" valign=3D"top" height=
=3D"175" bgcolor=3D"#000000"><table class=3D"gmail-m_4970131661470459166ydp=
4db1db92yiv6690341354ydp3e0f82ebcard-overlay-container-table gmail-m_497013=
1661470459166ydp4db1db92yiv6690341354ydp3e0f82ebyahoo-ignore-table" style=
=3D"width:100%" cellspacing=3D"0" cellpadding=3D"0" border=3D"0"><tbody><tr=
><td colspan=3D"1" rowspan=3D"1" class=3D"gmail-m_4970131661470459166ydp4db=
1db92yiv6690341354ydp3e0f82ebcard-overlay-cell" style=3D"background-color:t=
ransparent;border-radius:2px 2px 0px 0px;min-height:175px" valign=3D"top" b=
gcolor=3D"transparent"><table class=3D"gmail-m_4970131661470459166ydp4db1db=
92yiv6690341354ydp3e0f82ebyahoo-ignore-table" style=3D"width:100%;min-heigh=
t:175px" height=3D"175" border=3D"0"><tbody><tr><td colspan=3D"1" rowspan=
=3D"1" class=3D"gmail-m_4970131661470459166ydp4db1db92yiv6690341354ydp3e0f8=
2ebcard-richInfo2" style=3D"text-align:left;padding:15px 0px 0px 15px;verti=
cal-align:top"></td><td colspan=3D"1" rowspan=3D"1" class=3D"gmail-m_497013=
1661470459166ydp4db1db92yiv6690341354ydp3e0f82ebcard-actions" style=3D"text=
-align:right;padding:15px 15px 0px 0px;vertical-align:top"><div class=3D"gm=
ail-m_4970131661470459166ydp4db1db92yiv6690341354ydp3e0f82ebcard-share-cont=
ainer"></div></td></tr></tbody></table></td></tr></tbody></table></td></tr>=
<tr><td colspan=3D"1" rowspan=3D"1"><table class=3D"gmail-m_497013166147045=
9166ydp4db1db92yiv6690341354ydp3e0f82ebcard-info gmail-m_497013166147045916=
6ydp4db1db92yiv6690341354ydp3e0f82ebyahoo-ignore-table" style=3D"background=
:rgb(255,255,255) none repeat scroll 0% 0%;width:100%;max-width:400px;borde=
r-radius:0px 0px 2px 2px;border-top:1px solid rgb(224,228,233)" cellspacing=
=3D"0" cellpadding=3D"0" border=3D"0" align=3D"center"><tbody><tr><td colsp=
an=3D"1" rowspan=3D"1" style=3D"background-color:rgb(255,255,255);padding:1=
6px 0px 16px 12px;vertical-align:top;border-radius:0px 0px 0px 2px"></td><t=
d colspan=3D"1" rowspan=3D"1" style=3D"vertical-align:middle;padding:12px 2=
4px 16px 12px;width:99%;font-family:Helvetica Neue,Segoe UI,Helvetica,Arial=
,sans-serif;border-radius:0px 0px 2px"><h2 class=3D"gmail-m_497013166147045=
9166ydp4db1db92yiv6690341354ydp3e0f82ebcard-title" style=3D"font-size:14px;=
line-height:19px;margin:0px 0px 6px;font-family:Helvetica Neue,Segoe UI,Hel=
vetica,Arial,sans-serif;color:rgb(38,40,42)">MC7805CT Datasheet, PDF - Alld=
atasheet</h2><p class=3D"gmail-m_4970131661470459166ydp4db1db92yiv669034135=
4ydp3e0f82ebcard-richinfo-primary" style=3D"font-size:12px;line-height:16px=
;margin:0px 0px 4px;color:rgb(151,155,167)">alldatasheet.com</p><p class=3D=
"gmail-m_4970131661470459166ydp4db1db92yiv6690341354ydp3e0f82ebcard-descrip=
tion" style=3D"font-size:12px;line-height:16px;margin:0px;color:rgb(151,155=
,167)">MC7805CT Datasheet, MC7805CT PDF, MC7805CT Data sheet, MC7805CT manu=
al, MC7805CT pdf, MC7805CT, datenblatt, Elec...</p></td></tr></tbody></tabl=
e></td></tr></tbody></table></td></tr></tbody></table></a><div class=3D"gma=
il-m_4970131661470459166ydp4db1db92yiv6690341354loadingSpinnerContainer" st=
yle=3D"width:100%;min-height:100%"><div class=3D"gmail-m_497013166147045916=
6ydp4db1db92yiv6690341354D_F gmail-m_4970131661470459166ydp4db1db92yiv66903=
41354F_n gmail-m_4970131661470459166ydp4db1db92yiv6690341354gl_C gmail-m_49=
70131661470459166ydp4db1db92yiv6690341354ab_C gmail-m_4970131661470459166yd=
p4db1db92yiv6690341354H_6MGW gmail-m_4970131661470459166ydp4db1db92yiv66903=
41354o_h"><div class=3D"gmail-m_4970131661470459166ydp4db1db92yiv6690341354=
W_6MGW gmail-m_4970131661470459166ydp4db1db92yiv6690341354H_6MGW gmail-m_49=
70131661470459166ydp4db1db92yiv6690341354D_X gmail-m_4970131661470459166ydp=
4db1db92yiv6690341354ah_1PEzoz"></div></div></div></div><div><br clear=3D"n=
one"></div><div><br clear=3D"none"></div><div>They list multiple models of =
that chip. The one I think is closest is...</div><div><a shape=3D"rect" hre=
f=3D"http://pdf1.alldatasheet.com/datasheet-pdf/view/82852/FAIRCHILD/MC7805=
CT.html" rel=3D"nofollow" target=3D"_blank">http://pdf1.alldatasheet.com/da=
tasheet-pdf/view/82852/FAIRCHILD/MC7805CT.html</a><br clear=3D"none"></div>=
<div>because of the variable output.=C2=A0 The amp does have level/volume p=
ot on it. The other datasheets in the list do not show a variable output.</=
div><div><br clear=3D"none"></div><div>Brian</div><div><br clear=3D"none"><=
/div><div><br clear=3D"none"></div>
       =20
        </div><div class=3D"gmail-m_4970131661470459166ydp4db1db92yiv669034=
1354ydpbf13efe9yahoo_quoted" id=3D"gmail-m_4970131661470459166ydp4db1db92yi=
v6690341354ydpbf13efe9yahoo_quoted_1895949275">
            <div style=3D"font-family:&quot;Helvetica Neue&quot;,Helvetica,=
Arial,sans-serif;font-size:13px;color:rgb(38,40,42)">
               =20
                <div>
                    On Saturday, February 23, 2019, 6:30:21 AM EST, Jeff Sc=
arbrough &lt;<a shape=3D"rect" href=3D"mailto:[email-masked]" rel=3D"n=
ofollow" target=3D"_blank">[email-masked]</a>&gt; wrote:
                </div>
                <div><br clear=3D"none"></div>
                <div><br clear=3D"none"></div>
                <div><div dir=3D"ltr">How about LM7805CT?<br clear=3D"none"=
><div class=3D"gmail-m_4970131661470459166ydp4db1db92yiv6690341354ydpbf13ef=
e9yqt8133710530" id=3D"gmail-m_4970131661470459166ydp4db1db92yiv6690341354y=
dpbf13efe9yqtfd96835"><br clear=3D"none">On Sat, Feb 23, 2019 at 2:16 AM Ba=
ttmain via Shop-talk<br clear=3D"none">&lt;<a shape=3D"rect" href=3D"mailto=
:[email-masked]" rel=3D"nofollow" target=3D"_blank">shop-talk@aut=
ox.team.net</a>&gt; wrote:<br clear=3D"none">&gt;<br clear=3D"none">&gt; Fi=
nally got around to installing an amplified speaker I had sitting around fo=
r years.=C2=A0 It was supposed to be a simple install, but looks like I fri=
ed something in the haste.<br clear=3D"none">&gt;<br clear=3D"none">&gt; I =
already picked up the capacitor in the picture,=C2=A0 but I think the regul=
ator might be fried also based on the burn marks.Seems there are different =
models of that regulator.=C2=A0 The amp is in a 12v application.=C2=A0 Anyb=
ody have any ideas as to what model regulator it is? (or what I could subst=
itute it with? Will be getting it from that auction site. :) )<br clear=3D"=
none">&gt; Picture in the link...(that&#39;s the best I could get) <a shape=
=3D"rect" href=3D"https://i.imgur.com/FIfJA4O.jpg" rel=3D"nofollow" target=
=3D"_blank">https://i.imgur.com/FIfJA4O.jpg</a><br clear=3D"none">&gt;<br c=
lear=3D"none">&gt; I figure if I throw $5 at it in parts, it wouldn&#39;t h=
urt to try.<br clear=3D"none">&gt;<br clear=3D"none">&gt;<br clear=3D"none"=
>&gt; Brian</div><br clear=3D"none">&gt; __________________________________=
_____________<br clear=3D"none">&gt;<br clear=3D"none">&gt; <a shape=3D"rec=
t" href=3D"mailto:[email-masked]" rel=3D"nofollow" target=3D"_bla=
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66ydp4db1db92yiv6690341354ydpbf13efe9yqtfd59736"><br clear=3D"none">&gt;</d=
iv></div></div>
            </div>
        </div></div></div><div dir=3D"ltr"><span>__________________________=
_____________________</span><br clear=3D"none"><span></span><br clear=3D"no=
ne"><span><a shape=3D"rect" href=3D"mailto:[email-masked]" rel=3D=
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/a></span><br clear=3D"none"><span>Suggested annual donation =C2=A0$12.96</=
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<a href=3D"mailto:[email-masked]" target=3D"_blank">Shop-talk@aut=
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</blockquote></div><br clear=3D"all"><br>-- <br><div dir=3D"ltr" class=3D"g=
mail_signature">=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
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--0000000000008a37f605829237f9--

--===============3598234482545617379==
Content-Transfer-Encoding: 7bit
Content-Disposition: inline

[email-masked]

--===============3598234482545617379==--

---

From: Trevor Boicey via Shop-talk <[email-masked]>
Date: Sat, 23 Feb 2019 13:31:23 -0500

--===============2208971166823972331==

--000000000000d70f7e058293ea4f

There are a lot of parts that will work there. As previously mentioned it's
a 1 amp 5 volt regulator in a TO220 case. (TO220 is the case style with
three pins and a heat sink tab with hole for a bolt to attach it to
something metal to keep it cool)

Extremely common and extremely cheap part. Makes nice clean 5V from any
input voltage from about 6V to about 35V. Three pins are just "input
voltage 6V-35V", "output voltage 5V", and ground.

Digikey for that voltage and case shows the ubiquitous 7805 as well as
compatible variations up to 5A:

https://www.digikey.com/products/en/integrated-circuits-ics/pmic-voltage-regulators-linear/699?k=&pkeyword=7805&sv=0&pv1779=56&sf=0&FV=40203a%2Cffe002bb&quantity=&ColumnSort=0&page=1&stock=1&pageSize=25

Any part designated 7805-anything should work.

It likely blew up because something else shorted, but if the shorting was
temporary then it might just need replacing.

Suggestion: Buy a few because they are much cheaper than postage will be,
about 50 cents each at Digikey in quantity <10. Solder in a new one and see
if it works or blows up again.

If it blows up again, look for shorts around the device and fix those
before blowing up another one.

Repeat until it's working or you lose interest.

On Sat, Feb 23, 2019 at 11:01 AM Battmain via Shop-talk <
[email-masked]> wrote:

> http://autox.team.net/mailman/options/shop-talk/[email-masked]
>
>

--000000000000d70f7e058293ea4f
Content-Transfer-Encoding: quoted-printable

<div dir=3D"ltr"><div dir=3D"ltr">There are a lot of parts that will work t=
here. As previously mentioned it&#39;s a 1 amp 5 volt regulator in a TO220 =
case. (TO220 is the case style with three pins and a heat sink tab with hol=
e for a bolt to attach it to something metal to keep it cool)<div><br></div=
><div>Extremely common and extremely cheap part. Makes nice clean 5V from a=
ny input voltage from about 6V to about 35V. Three pins are just &quot;inpu=
t voltage 6V-35V&quot;, &quot;output voltage 5V&quot;, and ground.</div><di=
v><br></div><div>Digikey for that voltage and case shows the ubiquitous 780=
5 as well as compatible variations up to 5A:</div><div><br></div><div><a hr=
ef=3D"https://www.digikey.com/products/en/integrated-circuits-ics/pmic-volt=
age-regulators-linear/699?k=3D&amp;pkeyword=3D7805&amp;sv=3D0&amp;pv1779=3D=
56&amp;sf=3D0&amp;FV=3D40203a%2Cffe002bb&amp;quantity=3D&amp;ColumnSort=3D0=
&amp;page=3D1&amp;stock=3D1&amp;pageSize=3D25">https://www.digikey.com/prod=
ucts/en/integrated-circuits-ics/pmic-voltage-regulators-linear/699?k=3D&amp=
;pkeyword=3D7805&amp;sv=3D0&amp;pv1779=3D56&amp;sf=3D0&amp;FV=3D40203a%2Cff=
e002bb&amp;quantity=3D&amp;ColumnSort=3D0&amp;page=3D1&amp;stock=3D1&amp;pa=
geSize=3D25</a><br></div><div><br></div><div>Any part designated 7805-anyth=
ing should work.</div><div><br></div><div>It likely blew up because somethi=
ng else shorted, but if the shorting was temporary then it might just need =
replacing.</div><div><br>Suggestion: Buy a few because they are much cheape=
r than postage will be, about 50 cents each at Digikey in quantity &lt;10. =
Solder in a new one and see if it works or blows up again.</div><div><br></=
div><div>If it blows up again, look for shorts around the device and fix th=
ose before blowing up another one.<br><br>Repeat until it&#39;s working or =
you lose interest.</div></div></div><br><div class=3D"gmail_quote"><div dir=
=3D"ltr" class=3D"gmail_attr">On Sat, Feb 23, 2019 at 11:01 AM Battmain via=
 Shop-talk &lt;<a href=3D"mailto:[email-masked]">shop-talk@autox.=
team.net</a>&gt; wrote:<br></div><blockquote class=3D"gmail_quote" style=3D=
"margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-le=
ft:1ex"><div><div class=3D"gmail-m_-5809008202927118149ydp65bf8037yahoo-sty=
le-wrap" style=3D"font-family:&quot;Helvetica Neue&quot;,Helvetica,Arial,sa=
ns-serif;font-size:16px"><div></div>
        <div>Could I use *any* MC7805CT as a replacement, as the first link=
 shows different models of that regulator? Some models of the regulator hav=
e variable output as listed in the second link. I suspect the output should=
 stay constant for power, but since the amp output section has the pot on i=
t, was wondering if I should go with the adjustable output regulator or jus=
t stick with a fixed output?</div><div><br></div><div><br></div><div>Brian<=
/div><div><br></div><div><br></div><div><br></div><div><br></div><div><br><=
/div>
       =20
        </div><div id=3D"gmail-m_-5809008202927118149ydp4db1db92yahoo_quote=
d_1335261782" class=3D"gmail-m_-5809008202927118149ydp4db1db92yahoo_quoted"=
            <div style=3D"font-family:&quot;Helvetica Neue&quot;,Helvetica,=
Arial,sans-serif;font-size:13px;color:rgb(38,40,42)">
               =20
                <div>
                    On Saturday, February 23, 2019, 9:37:17 AM EST, Pat Hor=
ne &lt;<a href=3D"mailto:[email-masked]" target=3D"_blank">patintexa=
[email-masked]</a>&gt; wrote:
                </div>
                <div><br></div>
                <div><br></div>
                <div><div id=3D"gmail-m_-5809008202927118149ydp4db1db92yiv6=
690341354"><div>This chip is a voltage regulator, not the audio amplifier. =
The part number indicates that it is a 5v fixed regulator.=C2=A0<div><br cl=
ear=3D"none"></div><div>Peace,=C2=A0</div><div>Pat<br clear=3D"none"><br cl=
ear=3D"none"><div dir=3D"ltr" id=3D"gmail-m_-5809008202927118149ydp4db1db92=
yiv6690341354AppleMailSignature">Pat Horne=C2=A0<div>We support Habitat for=
 Humanity</div><div><br clear=3D"none"></div></div><div class=3D"gmail-m_-5=
809008202927118149ydp4db1db92yiv6690341354yqt0494001998" id=3D"gmail-m_-580=
9008202927118149ydp4db1db92yiv6690341354yqt20296"><div dir=3D"ltr"><br clea=
r=3D"none">On Feb 23, 2019, at 7:35 AM, Battmain via Shop-talk &lt;<a shape=
=3D"rect" href=3D"mailto:[email-masked]" rel=3D"nofollow" target=
=3D"_blank">[email-masked]</a>&gt; wrote:<br clear=3D"none"><br c=
lear=3D"none"></div><div dir=3D"ltr"><div class=3D"gmail-m_-580900820292711=
8149ydp4db1db92yiv6690341354ydp2bbfaeyahoo-style-wrap" style=3D"font-family=
:&quot;Helvetica Neue&quot;,Helvetica,Arial,sans-serif;font-size:16px"><div=
        <div>I did look up that model, however, here is an example from thi=
s site...</div><div><a shape=3D"rect" class=3D"gmail-m_-5809008202927118149=
ydp4db1db92yiv6690341354enhancr_card_1328980195" href=3D"http://www.alldata=
sheet.com/view.jsp?Searchword=3DMC7805CT" rel=3D"nofollow" target=3D"_blank=
">MC7805CT Datasheet, PDF - Alldatasheet</a><br clear=3D"none"></div><div><=
br clear=3D"none"></div><div class=3D"gmail-m_-5809008202927118149ydp4db1db=
92yiv6690341354ydp3e0f82ebyahoo-link-enhancr-card gmail-m_-5809008202927118=
149ydp4db1db92yiv6690341354ydp3e0f82ebymail-preserve-class gmail-m_-5809008=
202927118149ydp4db1db92yiv6690341354ydp3e0f82ebymail-preserve-style" id=3D"=
gmail-m_-5809008202927118149ydp4db1db92yiv6690341354ydp3e0f82ebenhancr_card=
_1328980195" style=3D"max-width:400px;font-family:&quot;Helvetica Neue&quot=
;,&quot;Segoe UI&quot;,Helvetica,Arial,sans-serif"><a shape=3D"rect" class=
=3D"gmail-m_-5809008202927118149ydp4db1db92yiv6690341354ydp3e0f82ebyahoo-en=
hancr-cardlink" href=3D"http://www.alldatasheet.com/view.jsp?Searchword=3DM=
C7805CT" style=3D"text-decoration:none;color:rgb(0,0,0)" rel=3D"nofollow" t=
arget=3D"_blank"><table class=3D"gmail-m_-5809008202927118149ydp4db1db92yiv=
6690341354ydp3e0f82ebcard-wrapper gmail-m_-5809008202927118149ydp4db1db92yi=
v6690341354ydp3e0f82ebyahoo-ignore-table" border=3D"0" cellpadding=3D"0" ce=
llspacing=3D"0" style=3D"max-width:400px"><tbody><tr><td colspan=3D"1" rows=
pan=3D"1" width=3D"400"><table class=3D"gmail-m_-5809008202927118149ydp4db1=
db92yiv6690341354ydp3e0f82ebcard gmail-m_-5809008202927118149ydp4db1db92yiv=
6690341354ydp3e0f82ebyahoo-ignore-table" border=3D"0" cellpadding=3D"0" cel=
lspacing=3D"0" width=3D"100%" style=3D"max-width:400px;border-width:1px;bor=
der-style:solid;border-color:rgb(224,228,233);border-radius:2px"><tbody><tr=
><td colspan=3D"1" rowspan=3D"1" valign=3D"top" class=3D"gmail-m_-580900820=
2927118149ydp4db1db92yiv6690341354ydp3e0f82ebcard-primary-image-cell" bgcol=
or=3D"#000000" height=3D"175" style=3D"background-color:rgb(0,0,0);backgrou=
nd-size:cover;border-radius:2px 2px 0px 0px;min-height:175px"><table class=
=3D"gmail-m_-5809008202927118149ydp4db1db92yiv6690341354ydp3e0f82ebcard-ove=
rlay-container-table gmail-m_-5809008202927118149ydp4db1db92yiv6690341354yd=
p3e0f82ebyahoo-ignore-table" border=3D"0" cellpadding=3D"0" cellspacing=3D"=
0" style=3D"width:100%"><tbody><tr><td colspan=3D"1" rowspan=3D"1" valign=
=3D"top" class=3D"gmail-m_-5809008202927118149ydp4db1db92yiv6690341354ydp3e=
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e-table" border=3D"0" height=3D"175" style=3D"width:100%;min-height:175px">=
<tbody><tr><td colspan=3D"1" rowspan=3D"1" class=3D"gmail-m_-58090082029271=
18149ydp4db1db92yiv6690341354ydp3e0f82ebcard-richInfo2" style=3D"text-align=
:left;padding:15px 0px 0px 15px;vertical-align:top"></td><td colspan=3D"1" =
rowspan=3D"1" class=3D"gmail-m_-5809008202927118149ydp4db1db92yiv6690341354=
ydp3e0f82ebcard-actions" style=3D"text-align:right;padding:15px 15px 0px 0p=
x;vertical-align:top"><div class=3D"gmail-m_-5809008202927118149ydp4db1db92=
yiv6690341354ydp3e0f82ebcard-share-container"></div></td></tr></tbody></tab=
le></td></tr></tbody></table></td></tr><tr><td colspan=3D"1" rowspan=3D"1">=
<table align=3D"center" class=3D"gmail-m_-5809008202927118149ydp4db1db92yiv=
6690341354ydp3e0f82ebcard-info gmail-m_-5809008202927118149ydp4db1db92yiv66=
90341354ydp3e0f82ebyahoo-ignore-table" border=3D"0" cellpadding=3D"0" cells=
pacing=3D"0" style=3D"background:rgb(255,255,255);width:100%;max-width:400p=
x;border-radius:0px 0px 2px 2px;border-top:1px solid rgb(224,228,233)"><tbo=
dy><tr><td colspan=3D"1" rowspan=3D"1" style=3D"background-color:rgb(255,25=
5,255);padding:16px 0px 16px 12px;vertical-align:top;border-radius:0px 0px =
0px 2px"></td><td colspan=3D"1" rowspan=3D"1" style=3D"vertical-align:middl=
e;padding:12px 24px 16px 12px;width:99%;font-family:&quot;Helvetica Neue&qu=
ot;,&quot;Segoe UI&quot;,Helvetica,Arial,sans-serif;border-radius:0px 0px 2=
px"><h2 class=3D"gmail-m_-5809008202927118149ydp4db1db92yiv6690341354ydp3e0=
f82ebcard-title" style=3D"font-size:14px;line-height:19px;margin:0px 0px 6p=
x;font-family:&quot;Helvetica Neue&quot;,&quot;Segoe UI&quot;,Helvetica,Ari=
al,sans-serif;color:rgb(38,40,42)">MC7805CT Datasheet, PDF - Alldatasheet</=
h2><p class=3D"gmail-m_-5809008202927118149ydp4db1db92yiv6690341354ydp3e0f8=
2ebcard-richinfo-primary" style=3D"font-size:12px;line-height:16px;margin:0=
px 0px 4px;color:rgb(151,155,167)">alldatasheet.com</p><p class=3D"gmail-m_=
-5809008202927118149ydp4db1db92yiv6690341354ydp3e0f82ebcard-description" st=
yle=3D"font-size:12px;line-height:16px;margin:0px;color:rgb(151,155,167)">M=
C7805CT Datasheet, MC7805CT PDF, MC7805CT Data sheet, MC7805CT manual, MC78=
05CT pdf, MC7805CT, datenblatt, Elec...</p></td></tr></tbody></table></td><=
/tr></tbody></table></td></tr></tbody></table></a><div class=3D"gmail-m_-58=
09008202927118149ydp4db1db92yiv6690341354loadingSpinnerContainer" style=3D"=
width:100%;min-height:100%"><div class=3D"gmail-m_-5809008202927118149ydp4d=
b1db92yiv6690341354D_F gmail-m_-5809008202927118149ydp4db1db92yiv6690341354=
F_n gmail-m_-5809008202927118149ydp4db1db92yiv6690341354gl_C gmail-m_-58090=
08202927118149ydp4db1db92yiv6690341354ab_C gmail-m_-5809008202927118149ydp4=
db1db92yiv6690341354H_6MGW gmail-m_-5809008202927118149ydp4db1db92yiv669034=
1354o_h"><div class=3D"gmail-m_-5809008202927118149ydp4db1db92yiv6690341354=
W_6MGW gmail-m_-5809008202927118149ydp4db1db92yiv6690341354H_6MGW gmail-m_-=
5809008202927118149ydp4db1db92yiv6690341354D_X gmail-m_-5809008202927118149=
ydp4db1db92yiv6690341354ah_1PEzoz"></div></div></div></div><div><br clear=
=3D"none"></div><div><br clear=3D"none"></div><div>They list multiple model=
s of that chip. The one I think is closest is...</div><div><a shape=3D"rect=
" href=3D"http://pdf1.alldatasheet.com/datasheet-pdf/view/82852/FAIRCHILD/M=
C7805CT.html" rel=3D"nofollow" target=3D"_blank">http://pdf1.alldatasheet.c=
om/datasheet-pdf/view/82852/FAIRCHILD/MC7805CT.html</a><br clear=3D"none"><=
/div><div>because of the variable output.=C2=A0 The amp does have level/vol=
ume pot on it. The other datasheets in the list do not show a variable outp=
ut.</div><div><br clear=3D"none"></div><div>Brian</div><div><br clear=3D"no=
ne"></div><div><br clear=3D"none"></div>
       =20
        </div><div class=3D"gmail-m_-5809008202927118149ydp4db1db92yiv66903=
41354ydpbf13efe9yahoo_quoted" id=3D"gmail-m_-5809008202927118149ydp4db1db92=
yiv6690341354ydpbf13efe9yahoo_quoted_1895949275">
            <div style=3D"font-family:&quot;Helvetica Neue&quot;,Helvetica,=
Arial,sans-serif;font-size:13px;color:rgb(38,40,42)">
               =20
                <div>
                    On Saturday, February 23, 2019, 6:30:21 AM EST, Jeff Sc=
arbrough &lt;<a shape=3D"rect" href=3D"mailto:[email-masked]" rel=3D"n=
ofollow" target=3D"_blank">[email-masked]</a>&gt; wrote:
                </div>
                <div><br clear=3D"none"></div>
                <div><br clear=3D"none"></div>
                <div><div dir=3D"ltr">How about LM7805CT?<br clear=3D"none"=
><div class=3D"gmail-m_-5809008202927118149ydp4db1db92yiv6690341354ydpbf13e=
fe9yqt8133710530" id=3D"gmail-m_-5809008202927118149ydp4db1db92yiv669034135=
4ydpbf13efe9yqtfd96835"><br clear=3D"none">On Sat, Feb 23, 2019 at 2:16 AM =
Battmain via Shop-talk<br clear=3D"none">&lt;<a shape=3D"rect" href=3D"mail=
to:[email-masked]" rel=3D"nofollow" target=3D"_blank">shop-talk@a=
utox.team.net</a>&gt; wrote:<br clear=3D"none">&gt;<br clear=3D"none">&gt; =
Finally got around to installing an amplified speaker I had sitting around =
for years.=C2=A0 It was supposed to be a simple install, but looks like I f=
ried something in the haste.<br clear=3D"none">&gt;<br clear=3D"none">&gt; =
I already picked up the capacitor in the picture,=C2=A0 but I think the reg=
ulator might be fried also based on the burn marks.Seems there are differen=
t models of that regulator.=C2=A0 The amp is in a 12v application.=C2=A0 An=
ybody have any ideas as to what model regulator it is? (or what I could sub=
stitute it with? Will be getting it from that auction site. :) )<br clear=
=3D"none">&gt; Picture in the link...(that&#39;s the best I could get) <a s=
hape=3D"rect" href=3D"https://i.imgur.com/FIfJA4O.jpg" rel=3D"nofollow" tar=
get=3D"_blank">https://i.imgur.com/FIfJA4O.jpg</a><br clear=3D"none">&gt;<b=
r clear=3D"none">&gt; I figure if I throw $5 at it in parts, it wouldn&#39;=
t hurt to try.<br clear=3D"none">&gt;<br clear=3D"none">&gt;<br clear=3D"no=
ne">&gt; Brian</div><br clear=3D"none">&gt; _______________________________=
________________<br clear=3D"none">&gt;<br clear=3D"none">&gt; <a shape=3D"=
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ested annual donation=C2=A0 $12.96<br clear=3D"none">&gt; Archive: <a shape=
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p-talk/[email-masked]</a><div class=3D"gmail-m_-5809008202927118149ydp=
4db1db92yiv6690341354ydpbf13efe9yqt8133710530" id=3D"gmail-m_-5809008202927=
118149ydp4db1db92yiv6690341354ydpbf13efe9yqtfd59736"><br clear=3D"none">&gt=
;</div></div></div>
            </div>
        </div></div></div><div dir=3D"ltr"><span>__________________________=
_____________________</span><br clear=3D"none"><span></span><br clear=3D"no=
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</blockquote></div>

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[email-masked]

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