Full wave slave control (CB8156E)

Using SCRs, this circuit from a 1967 General Electric manual allows full wave load control with SCRs. SCRs can be modern types depending on the load.

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Heartbeat Detector (CB25472S)
This heartbeat sensor circuit was found in the July 1992 issue of Radio Electronics magazine. The...
Power stage (CB7279E)
This amplifier circuit with a low power MOSFET was found in Popular Electronics from the 90s. The...
Versatile Astable Multivibrator (CB25329E)
This circuit, which can be built with several CMOS gates, was found in the March 1996 issue of...