Push-pull potsPush-pull pots are pots with a built-in switch, generally used in guitars and basses.These are available eg from Mouser or from potentiometers.com (who can supply with expensive custom pots).  when you pull the switch the connection changes from B-C to B-A, and E-F to E-D. Use your meter's continuity setting to confirm your switch works the same way. The "middle" lugs (B & E) are the constant, the "outside" lugs ( A & C, D & F) are the connections you switch between. (from Deaf-Eddie's page) Some value seem hard to find for push-pull, a solution is to buy common pots of the same type and to replace the push-pull pot's resistive track. Push-pull pots are easy to disassemble, but the common pots don't (I had to break the shaft to get the part). This allows having any value you could want. |
