If was me, I would use a stacked A250K/500K and make it VOL-TON for each pickup.
can you wire a standard 500k pot as a blend knob or do you HAVE to use an MN pot?
Some folks can't help but swim against the tide.
Why would you want to do this?
There are a handful of active preamps that use a stacked blend and master volume. The ACG EQ01 is the only one I have experience with. It’s nice. But there’s a reason that you don’t see it very often, and that’s because to do it properly you’d need a triple-gang pot.Because I want a stacked blend and master volume and the only pot I found is like $70 so I wanted to know if I could do it cheaper. Also purely for the knowledge and because it's interesting
Sure bud.And some folks have no imagination or intellectual curiosity
Sure bud.
People with depth of knowledge on the subject are trying to help and you don't seem to want to listen.
Whatever....
Your idea is functional, but not practical. Pickups are very high impedance - around 10 MegOhms, so a pot of less value will likely have very little effect. Then if you use a pot of 10-100 M there will be a huge amount of loss. The impedamce of the pot will also interact with the coupound impedances of the pickup, making the sound funky. Blend pots work because they shunt the unwanted part of the signal to ground. You can't do that with a single element pot and a passive circuit. Sorry!
Sometimes, it's the only choice. See the film "The Straight Story." Okay, back to regular programming, in which all choices are available.You could use a tractor to commute 30 miles to work... but it's not the best option for a lot of reasons. If you want a blend pot, buy a blend pot.