As an experienced electronics engineer I'd like to add a comment here: be
careful with to much heat! It's quite easy to overheat and the damage will
be severe then!
Cheers,
Hans
-----Original Message-----
From: paul.hunt1@virgin.net [mailto:paul.hunt1@virgin.net]
Sent: Wednesday, December 19, 2001 12:28 PM
To: Matthew Trebelhorn; mgs@autox.team.net
Subject: Re: Re: Tachometer reading 500-2000 RPM high!
Mark Olsen used to have a 'tach repair' page on his Sunbeam Tiger site but I
can't find it now. I think there are only a couple of transistors, the
usual way to detect marginal ones is to heat them up with a hairdryer to
make them fail, or use a freezer spray to 'repair' them.
----- Original Message -----
From: "Matthew Trebelhorn" <matttrebelhorn@netscape.net>
To: <mgs@autox.team.net>
Sent: Tuesday, December 18, 2001 5:32 PM
Subject: RE: Re: Tachometer reading 500-2000 RPM high!
> Any idea how to track it down, if it is in fact a bad (okay, marginal)
transistor? It's been a few years since I've had the case open on one of
these tachs. How complicated are they?
>
> The tach is not getting all that hot -- on the warm side, but not
uncomfortable to touch.
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