<VV>Transistor Radios

[Frank DuVal]

Slight change to dates. My '57 Olds 98 has a vibrator radio, and I have 
worked on a '57 Buick vibrator "Wonder Bar", and a '57 Chevy push button 
with vibrator. These typically have a separate chassis for the vibrator 
and audio output, in the case of the Buick it is attached at the end of 
the main radio. This was to make the radio shorter and wider to fit the 
new dash profiles.  I do recall high end cars (Eldorado and Imperial) 
having all transistor radios about '57 or '58. Right now I have CRS and 
cannot remember if my friend's '59 Cadillac sedan has the vibrator hum. 
Probably not as the radio works fine!

Frank DuVal

Padgett wrote:

>Delco radios actually went through several transitions in the 50s and 60s
>1) high B+ voltage tube type radios with vibrators (pre-1957)
>2) low voltage (12v B+) radios - 1957-1959ish (not at home so cannot look up)
>3) low voltage tubes with a single transistor output (1959-1962)
>4) all transistor radios (1963 model year)
>
>Keep in mind that until the late fifties, transistors were considerably more expensive than tubes and used only in high-end sets.
>
>Padgett 
>
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