• WARNING: Tube/Valve amplifiers use potentially LETHAL HIGH VOLTAGES.
    Building, troubleshooting and testing of these amplifiers should only be
    performed by someone who is thoroughly familiar with
    the safety precautions around high voltages.

Amplifier switched pot wiring help

Good afternoon good people of the DIY world.

I've a query I'm hoping I can get help with.
I picked up a suitcase record deck with built in amp a few years ago and I've only just got round to having a look at it.

I sold off the record deck and didn't want to throw the suitcase/amp part of it because I thought it may make a good project at some point.

So now I'm at the stage where I connected it up this morning and kept blowing fuses if I wired the amp up bypassing the switched part wiring of the I/o pot, going straight to the voltage selector wires.
Attached is a pic of the pot, could some enlightened individual please explain to me which of the white wires go to the voltage selector and which go to the mains ground?
 

Attachments

  • 16458883125496550636389734792218.jpg
    16458883125496550636389734792218.jpg
    389.1 KB · Views: 114
Last edited:
You didn't post enough information/pictures.

  • What brand/type is this record deck/amplifier?
  • Was the motor of the record deck connected to the power transformer or did it have its own connection to the mains?
  • Based on what did you connect it up the way you did?
  • Do you have a schematic?

Can you atleast post more pictures, showing all the electronic parts and leads?