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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62 mW Stereo Amplifier Handset (CB15569E)
The circuit shown in the figure consists of an amplifier for stereo sources with Maxim's MAX9723...
Power supply with zener regulation (CB23688E)
This simple low current circuit was found in a Radio Electronics magazine from August 1960. The...
Power amplifier (CB23607E)
This small 2-transistor amplifier was found in the Radio Electronics magazine of May 1959. The...