Changing pickups in a HH Squier Bullet Mustang to the wiring diagram below. Also installing new 500k pots as the pots that came as stadard are 250k. All is working ok, apart from when we turn the volume down a bit, where it cuts out entirely. Then close to being turned all the way down, it springs back to life and begins tapering down to silent.
Its like 70% or so of the pot's rotation is silent.
So, thinking the pot might be shegged, I soldered in a new alpha a500k pot that came in the same package as the suspected faulty one. Lo and behold - same result.
Is it the diagram or is it just shit pots or is it just bad luck?
Just so people are aware. I have no idea what any of these words mean.
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The only possibility I can think of is that very rarely, if the knob is fitted too far onto the shaft, it can bind against the nut and force the mechanism inside out of position so it cuts out - but this is rare enough that I’d still be surprised both pots did it (usually it just jams the knob). You can check if it’s that by simply turning the pot with no knob on.
If that’s only the second time you’ve soldered anything, you’ve learned very fast!
"Take these three items, some WD-40, a vise grip, and a roll of duct tape. Any man worth his salt can fix almost any problem with this stuff alone." - Walt Kowalski
"Only two things are infinite - the universe, and human stupidity. And I'm not sure about the universe." - Albert Einstein
It's been replaced with the cheapest, smallest pots I've ever seen. A bit of WD-40 into them to remove the scratchiness and they're working great.