We found this circuit in a publication by General Electric in the 1980s. The transistors and the PUT are from that time. The control is done by a tachometer based on an optical coupler.
We found this circuit in the 1982 SGS Linear Integrated Circuits manual. The circuit is integrated is...
This sophisticated transistor provider could select the test current of the tested components in...
May 2017 - Microchip LAN8710A and LAN8710Ai integrated circuits, low-power, high-performance...