Coutant LQT 100 bench power supply repair
Opening up and diagnosing the cause of a fault with the constant current regulator circuitry in this vintage Made in England LQT100 bench power supply.
I made the video to document my progress and learnings, as well as sharing the experience in case it helps anyone else.
The LQT100 and 200 model user manual, circuit description and schematic is here:
https://drive.google.com/file/d/1lY8B...
The similar LQ & LM model user manual, circuit description and schematic is here (useful to compare description to the LQT manual):
https://drive.google.com/file/d/1dL5E...