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Old 01-22-2012, 04:07 PM
Pvee Pvee is offline
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Join Date: Dec 2000
Location: Maineville,Oh,USA
Posts: 2,667
Default All Transformer guitar amp 1950's

Around 1954 an uncle gave me a transformer Guitar amp.

I was into electronics and fixing radios and TV's at that time so I examined this thing to see what was in it.

Don't remember the exact number but there was 5-6 audio transformers that built the signal up then an impedience matching transformer to drive the speaker.

No tubes or Transistors at all. It had a 10 inch speaker I think.

It worked pretty well as a bedroom amp.

it used AC power to produce a low voltage dc power supply.

They used the dc voltage through a pot to run current through one of the transformers to swamp the audio signal and that was the volume control.

Don't know why they decided to do it that way but they did.

It was pretty neat very low power device.

I passed it on to someone else when I went into the USAF, and I have never seen or heard of another one.
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