For my ESB-4 with Dano pickups, I needed hard to get values in mini pots. 1M and 100K. I did find them, but mismatched...some Bourns, some Alphas, which would have meant using two USA and two Asian knobs.
I decided to go a different route. CTS make some mini pots for guitars. One 250K and one 500k. You can get them linear or audio, and they are available everywhere. You can get them with long threaded bushings that you need for semi-hollow guitars. So, I got four 500K pots to sacrifice, and started looking for some pots with the right value wafers...
The odd thing is that CTS labels the guitar minis differently than all the other minis in the series. The 200K and 500K pots have a long number starting with "EP." All the other pots in the series start with "270"
I found some 270 pots in the 1 Meg and 100K audio values I wanted. Of course the caps and shafts were weird...
I took both pots apart, and was left with a housing, cap, shaft/rotor and resistor-wafer from. These parts are all interchangeable on 500K or 250K pots.
However, on the 270 series pots I found, there was a critical difference. The hole in the wafer was too small to fit on the shaft from my 500K pots.
Continued next post...