Half wave control (CB21375E)

This circuit for heating elements was taken from a 1966 General Electric manual. The SCRs are load-according, and the sensor is 1 ohm.

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Simple analog averaging circuit (CB21038E)
This circuit was found in an American documentation from the 90's. What it does is provide at the...
High Pass RLC Filter (CB6739E)
Found in old documentation, this circuit is tuned to pass signals below 245 Hz with a level of...
20 LED Effects Circuit Using 4017 (CB25438E)
This series LED circuit was found in the February 1992 issue of Radio Electronics magazine. The...