This circuit works like a solid-state contactor. We find it in General Electric documentation from 1965. SCRs can be modern equivalents according to the controlled load.
This signal booster that ranges from long waves to about 30 MHz is recommended to be used with...
TTL square signals can be divided by 10 using this circuit. The maximum frequency depends on the...
Used in 1950s CW receivers, this type of circuit used germanium transistors. The circuit has...