2 kW Control (CB21374E)

This power control was found in a 1968 power circuit manual. The SCRs are according to the power of the controlled load.

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Microtransmitter (CB23575E)
This VHF transmitter was found in Radio Electronics magazine from June 1964. The transistor is an...
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This two-transistor circuit is from a Radio Electronics magazine from April 1965. The transistors are...
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This circuit was found in a 1967 documentation. The switch diode is a component of the time and is...