The idea of this circuit found in a Radio Electronics from January 1966. The idea of the circuit is to improve the reception of audio signals, mainly telegraphy, working as a filter.
We found this circuit in a Radio Electronics from October 1963. The circuit uses an output...
Found in the July 1970 Radio Electronics magazine, this circuit has an adjustable activation time...
This circuit has the pulse width determined by the 22k resistor and the frequency by the capacitor and...