This circuit is intended to switch high frequency antennas using common diodes. The circuit is from an 80's documentation appearing in other versions in this same section of the site.
Taking advantage of the high input impedance of the operational amplifier 741 and its high gain we...
This 1987 circuit has a very interesting concept. It powers a second set of rhythmic lights from...
Found in an American documentation from 1968, this circuit uses transistors from the time. The...