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Philco Transistor Radios.
I was just looking over a few of my transistor radios.
I have two Philcos from 1957, 1958. A T7 and a T600. They really use a unique circuit that only needs 3 volts, 2 "D" cells. Long, inexpensive battery life. They also use a tapped power supply using a DPST switch. |
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