I’ve just constructed my combo amp/speaker cab, using a Vellman VM100.
It’s been very difficult sourcing a Long Thread 47K Ohm potentiometer, which is required due to the cabinet being 15mm thick MDF. I’ve therefore had to buy separate potentioemters and cannibalise them to make the desired long thread 47K ohm pot.
However, I’m finding that there’s a very annoying buzz at either end of the pot. Yes, I could simply not turn it the full way up or down, but that doesn’t seem right to me.
The amp also makes a loud popping sound upon power on or power off.
Do you have any ideas / tips / guideance to help me eliminate these problems?