b wrote in message
ps.com...

n cook ha escrito:

I've been asked to convert a 1962 car radio (Ge technology) to include
FM.
Its in a classic car so front panel appearance at least must be
un-altered.
I'm thinking of using a personal matchbox size mono FM receiver with
step
button channel change, to fit inside.
Drop the 12V to 3V, couple antenna to exiting antenna, switch out AM and
switch in FM and couple in , adjusted, the o/p to amp input of the car
radio.
Of course I could extend the switches out of the car radio case but
anyone
ideas for hiding switches in the existing radio case?
The tuning advance button could perhaps be mounted behind a flexible
part of
the front panel but what about the 2 way switch for AM/FM select ?

--
Diverse Devices, Southampton, England
electronic hints and repair briefs , schematics/manuals list on
http://home.graffiti.net/diverse:graffiti.net/

I dont know anyone who listens to AM these days. unless your client is
especially partial to it, i'd just wire it for FM and if the set has
channel pushbuttons, put a small microswitch behind one to use for the
step-up/ fm seek tuning.
B..


I'm also wondering about ignition noise and use on a positive earth car
chassis.

--
Diverse Devices, Southampton, England
electronic hints and repair briefs , schematics/manuals list on
http://home.graffiti.net/diverse:graffiti.net/