Hi, I have an old soundcraft 200/400b power supply that I am trying to use to power a very low wattage circuit.
I am getting exactly +48v and +17, as expected, but -23v out of the negative rail regulator, an LM337K TO-3.
Voltages before the regulators are the same between the positive and negative sides.
I also observed, on the 337, that the output pin voltage is the same -23v at the adjustment pin.
Is this an indication of a faulty regulator?
Thanks
I am getting exactly +48v and +17, as expected, but -23v out of the negative rail regulator, an LM337K TO-3.
Voltages before the regulators are the same between the positive and negative sides.
I also observed, on the 337, that the output pin voltage is the same -23v at the adjustment pin.
Is this an indication of a faulty regulator?
Thanks
