Based on the MC1488 or MC1489 operational amplifiers, this circuit has a 5000V isolation driving a 2N3055 transistor for a high-power signal. The receiver is a common phototransistor.
This single-channel remote control transmitter operating in the FM range uses common components and...
This circuit was obtained in a 70s American documentation. The integrated circuits of the time are...
This voltage sensor limits the discharge of a Nicad battery. We found it in an American...