Buffered Detector (CB6669E)

This circuit was found in 1967 General Electric documentation. The transistors of the time can be replaced by modern equivalents.

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Very low voltage zener (CB8817E)
This circuit was found in a 1969’s American documentation. It shows how to use two transistors to form...
SiRA20DP 25 V N-Channel MOSFET
March 2017 - Vishay's new SiRA20DP N-channel MOSFETs for synchronous grinding applications, DC /...
Audio stage for radio with LM386 (CB25295E)
This circuit serves as an audio output for AM or even FM radios and was found in a Radio...