This circuit was obtained from an American 80's documentation. The balanced mixer can be shown in CB4234. The circuit is for controlling RF signals in a modulation system.
This circuit is as shown in a 1976 technical documentation. It can currently be assembled with any...
Equivalent transistors, like the BC548 and BC558 pair can be used in this circuit that we find in an...
This circuit, from the On Semiconductor thyristor manual, is suitable for incandescent lamps or...