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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Remote Control Extender (CB26151E)
This circuit appeared in the 1991 Electronics Experimenter Handbook. The circuit is for remote...
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This circuit was found in Radio Electronics magazine from January 1959. The power transistor must...
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This circuit uses an MW radio tuned to around 540 kHz to detect atmospheric signals, for example, from...