Found in a 1967 Electronics World, this circuit can use any modern equivalent FET. Observe the amplitude of the input and output signals.
This timer uses common components and can be used for time intervals up to a few hours. The...
This simple circuit works at the same time as a radio receiver and transceiver for the medium wave...
With this circuit it is possible to receive signals in the 2 m (150 MHz) range on a pocket AM...