SCR Alarm oscillator (CB6114E)

This circuit was suggested by General Electric in a 1965 documentation. The circuit can be implemented with equivalent SCR.

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Pulse Delay with the 741 (CB1426E )
The purpose of the circuit shown in the figure, obtained from a 1972 documentation, is to delay the...
Impedance Matcher for Audio (CB793E)
This circuit is used to match a high impedance input source with a low impedance output device...
100 MHz Overtone Oscillator (CB6508E)
This circuit of a 73 American magazine from the 1990s can generate multiple frequency signals from the...