[Boatanchors] Partially Off Topic Question

[jcoward5452 at aol.com]

Jack,
  Not American, but I think VW switched over in 1965.Not a big problem 
for them as all the electrical systems were virtually identicle for the 
various models.As far as I know the dealers installed the radios in 
VW's.The old Blaupunkts had switches for 6 or 12V and pos or neg 
ground.American radio manufacturers for VW radios include 
Bendix,Motorola,Automatic and maybe others.

If I were you I would get a Gonset converter and maybe add pos feedback 
through a filter in the IF for the BFO.Or inject a beat frequency 
oscillator to the antenna.
 Jay


-----Original Message-----
From: Jack Antonio <scr287 at sbcglobal.net>
To: boatanchors at mailman.qth.net
Sent: Sun, Aug 9, 2009 11:40 am
Subject: [Boatanchors] Partially Off Topic Question



When did American automobiles go from a 6 Volt system
to a 12 V system?

I have a 52 Ford car radio which is 6 V, and I know
that by the time I was aware of such things in high school
in the mid 60s, all the family's cars were 12V, but when
did the change occur?

Was it an all at once starting with a given model year?

Were 12V systems optional, becoming standard at some point?

This was prompted by some idle thinking about using the 52 Ford
car radio as a basis for a simple cheap ham receiver, by adding
a BFO and a converter front end, a project that I may explore one
of these decades.

Thanks

Jack Antonio WA7DIA
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