This reflex receiver for the mid-wave range employs germanium transistors of the time. We found it in an English documentation from 1967.
This circuit appeared in a Radio Electronics magazine in March 1962. The circuit uses two...
A complete test for opto-couplers can be made using the circuit Bellow. The function generator...
The integrated circuits of the SGS L79xx series are equivalent to those of the common 79xx series,...