This circuit controls an external light that turns on at dusk and off in the morning. The circuit is from a Radio Electronics from October 1987.
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...