Joseph,
They work by bleeding current to ground (the big tab). In so doing, they
generate heat. Lots of it. Sooo, you need to have a REALLY good connection to
keep them cool. A bad ground (not detectable by a VOM) will cause them to go
bad. I too went through MANY of them. Finally my buddy Dan Houg from Bemidji
put together a little external variable voltage regulator circuit which I
wired in and adjusted. It's been working ever since.

On Thu, 21 May 1998, Joseph J. Liasse wrote:
>      I am on my 4th one of these. Each one I put in will work for a while
> (from 2-6 months) and then will suddenly "half blow" (for lack of a better
> term). In the "half blown" state both the fuel and temp gages will read
[etc]

--
Gerry
Gerald Skerbitz <g-sker@umn.edu>
U of MN Academic Health Center Administrative Information Systems  6-5379
Home St. Paul,Ramsey County,Minnesota, USA