This bench circuit was found in Radio Electronics magazine from December 1957. The circuit generates signals in bands that depend on the coils.
This RS flip-flop uses two type 4N26 optical couplers and is characterized by the very high...
This circuit is from an American 80's documentation. The integrated circuit is of the time and is no...
The figure shows how to increase the output current to about 50 mA of an operational amplifier. The...