30 W Amplifier (T371E)

Operating in class AB1, this high-fidelity amplifier was found in the 1961 RCA tube manual. The circuit has high input impedance and good gain.

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Triac high voltage generator (CB8477E)
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When the sensor is activated the relay turns on powering na external load such as a buzzer siren...
Transistor Radio GE675 and 676 (CB18441E)
This transistorized receiver was manufactured in the 1960s and distributed worldwide. The diagram is...