Based on a PLL 567, this circuit serves as a receiver for the CB9574E circuit. S tuning is done in R1 and it is used for frequency modulated signals.
The purpose of this circuit, which we find in an old American documentation, is to allow the...
This simple TTL electronic dice uses common anode displays. The circuit is from a March 1975 Radio...
This is the basic version of a gain 20 amplifier with the LM386 providing a few hundred...