This circuit of the 70's uses transistors of the time. The circuit can amplify signals from 10 Hz to 100 kHz and modern equivalent components can be used. The circuit is from Ferranti.
Small time intervals up o some minutes can be achieved with this circuit. Only incandescent lamps...
This circuit was found in a 1980s technical documentation. It tests the inverse characteristics of a high...
July 2017 - The new Texas Instruments UCC20520 isolated drivers are already in the stock of Mouser...