Varactor diodes are our varicaps of today. This circuit for switching signals in an RF circuit was found in a Radio Electronics magazine from July 1982.
Incandescent lamps of up to a few amps can be placed to flash with this circuit. The frequency depends...
In the figure we have a circuit that fires from a positive pulse of short duration applied to its...
This full wave control with SCRs uses a different solution to avoid using a diode bridge: a pulse...