Linda,
The logic circuit is not necessary for a Roadster - modern vehicles have
sensing circuits that can be upset by anything drawing current not originally
on the vehicle. You can't tap directly into the tailight wiring harness, so
you need the logic circuit to isolate the LED.
On the roadster (60's technology), you can just tap into the wire that is hot
when the brake lights are on ( either side), for the red / hot lead of the
LED, and ground the LED's black wire. With a wiring diagram for the correct
year, you can find which color wire to tap....unless of course some PO changed
the harness.
Mark
----- Original Message -----
From: ljordan704@netscape.net
To: msedlack@neo.rr.com
Cc: datsun-roadsters@autox.team.net
Sent: Friday, October 20, 2006 2:08 PM
Subject: Re: Third brake light ( was Re: comment and question)
Thanks for the info Mark. Love your website, talk about dense!
What is the other part needed that was mentioned on the tinyurl link....a
circuit? it was sold separately. Not sure what to get. This is definitiely on
my list to do, but being techhically challenged I need the "step by step
approach"
Thanks, Linda
-----Original Message-----
From: msedlack@neo.rr.com
Sent: Fri, 20 Oct 2006 8:49 AM
Subject: Third brake light ( was Re: comment and question)
Can't speak for Todd, but the "R" has one - LED strip mounted to a plate
that's welded to the rollbar. The rollbar pad fits around the plate, so all
you see is the strip. The wiring runs inside the bar. There's pics of it
under the Lot's-O-Stuff, Marriage, and It ALIVE links on my website
www.mildevco.net/chevypowereddatsuns
I got the 20 LED strip from JCWhitless http://tinyurl.com/yzr4om - its
very light, and comes with a very aggressive 3M double sided foam tape. If
you don't have a rollbar, you could mount one to the leading edge of the
trunk lid. It would be easy to fold a thin, "J"-shaped aluminum bracket
that would have a vertical face extending above the trunk to mount the LED
strip on - probably could be made of heavy AL roof flashing:
| < LED mounting surface
| ____________________________< trunk
| |
| | |
|__| <channel to slip onto trunk lip, ribbon cable inside
A flat ribbon cable scarfed from a junk printer etc., folded and routed
inside the bracket, some additional double-sided tape to stick it to the
trunk lip, and you'd be in business. No holes to drill. Ziptie the wires
to the trunk hinge, with some slack under the turtle deck.
Mark Sedlack
ZROC
Cuyahoga Falls OH
66 1600 http://www.mildevco.net/chevypowereddatsuns/
77 280Z http://www.mildevco.net/chevypowereddatsuns/
----- Original Message -----
From: "roadster katman" <roadster@rcn.com>
To: "'Graeme'" <graemes@internode.on.net>; "'Gary Tew'" <garytew@cox.net>;
"'datsun list datsun'" <datsun-roadsters@autox.team.net>
Sent: Friday, October 20, 2006 2:53 AM
Subject: RE: comment and question
> I'm pretty sure Todd Osborn has an LED brake light on his roadster's
> rollbar. His roadster has been hit in the rear a couple times, maybe
> that was a primary reason for installing it.
>
> Fred - SSF, CA
>
> -----Original Message-----
> From: owner-datsun-roadsters@autox.team.net
> [mailto:owner-datsun-roadsters@autox.team.net] On Behalf Of Graeme
> Sent: Thursday, October 19, 2006 10:20 PM
> To: 'Gary Tew'; 'datsun list datsun'
> Subject: RE: comment and question
>
>
> "My idea is to take a bumper mounted license plate lamp from an early
> car and turn it around and mount it just behind where the top fastens to
> the body in the center. Gary Tew Phoenix early '67 1600"
>
> Hi Gary,
> might I suggest an aftermarket LED brake light.
> They are available in a slim aerodynamic case and can be on a stand or
> bonded to a flat surface like the area you describe. The LEDS can be
> high intensity and will come on instantly with no warm up time like an
> incandescent globe. A good safety feature for any old vehicle that is
> for sure.
|