Current Booster (CB6787E)

This circuit was suggested by Linear Technology in documentation from the 90s. The circuit applies to modern operators with modern transistors.

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Two Transistors Schmitt Trigger (CB19895E)
This Schmitt trigger was found in old documentation. The transistors can be of the general-purpose type like...
Tone Decoder 567 (CB5069E)
This circuit can be used with previous transmitters to decode a signal transmitted via power grid....
SCR Alarm oscillator (CB6114E)
This circuit was suggested by General Electric in a 1965 documentation. The circuit can be...