Found in a 1967 Electronics World, this circuit can use any modern equivalent FET. Observe the amplitude of the input and output signals.
We found this circuit in a Hands On Electronics from the 90s. The delay is given by the formulas...
Found in American documentation from the 90s, this circuit can be used as a shield with the...
This circuit uses the 7815 regulator to obtain a voltage for motor control num shield for PC. The...