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  • Build your own Variable Lab Bench Power Supply

    update: changed back to the old pots that come on the board and its working again. Obviously this isnt ideal and suggests that there is something wrong with my rotary potentiometers or the way I connected them

    Hey scott!Ive built my own and had it working, however now Ive changed to the rotary potentiometers I dont get a reading for the voltage or current anymore. I've double checked the pots are the right way around and checked the rest of my wiring.Please Help!!P.S the power supply is in a separate enclosure to the main board

    checked my rotary pots with a multimeter and the 200K seems fine but the 500K is reading a max. of 412K ohms. Does this mean the 500K is faulty?

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