Audio Booster (CB6181E)

This reinforcing stages from a 1960s documentation. No information is given about the transformer and the transistor admits equivalents.

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11-meter range receiver (CB23825E)
This remote-control circuit was found in Radio Electronics magazine from June 1962. It drives a...
Optical Communicator – Receiver (CB25536E)
This is the receiver for the previous circuit we found in the December 1992 Radio Electronics...
DC to AC Converter (CB25843E)
This circuit with a few watts of power was found in the April 1995 issue of Electronics Now...