Early all-transistor car radios

[dieseljeep]

Originally Posted by davet753

I restored a radio from a friends '58 Cadillac a few years ago, and it was all tube. I thought it rather odd because I am certain that the stock radio for '57 Chevy's have a transistor audio output.

I had a '62 Cadillac and a '62 Ford a few years ago, and while I didn't have to do any radio repairs, I do remember them having to warm up.

The '57 Chevy had three different radios available that year. The TOTL radio was a two unit radio, simular to the '56 model, that had push-pull 12V6's and a vibrator power supply.
The basic manual tuned radio had a vibrator power supply and a S.E 12V6 output stage.
The Third model available was a push button, five tube with a transistor output stage and space-charged tubes.
The other GM divisions did about the same, IIRC.