[Healeys] Question re positive ground

[Oudesluys]

A 1A fuse would be far to heavy for a modern printed circuit, 0.2A would 
be more appropriate.
Kees Oudesluijs
NL


Op 8-12-2012 18:06, Mike Garvey schreef:
> You need to very carefully make sure that the GPS unit receives the expected
> polarity and you need to wire the 12V socket accordingly.
> The positive voltage needs to be on the center (deep) contact of the socket,
> otherwise you'll likely fry the GPS unit.  You need to also be careful that
> the outside barrel of the socket (now connected to negative power) cannot
> contact any parts of the car (positive ground) chassis.
> To be safe, I'd put a fuse (1 amp is plenty) in both legs (positive ground
> and negative power) of the lines that supply the socket.
> Mike
>
> Michael Garvey
> 1967 BJ8/38046
> Swampscott, MA