This circuit is from a Radio Electronics from March 1970. The crystal depends on the frequency at which the signal is to be captured and the resonant circuit determines the tuned band.
This circuit can be used to add a delay to a logic signal as shown by the input and output...
Found in the April 1974 issue of Radio Electronics magazine, this circuit is based on CMOS...
This circuit converts a high impedance signal into low impedance. The circuit has unit gain and...