1Pcs Japan ALPS RK27 Duplex HiFi volume potentiometer 6Pins A10K 50K 100K 250K Usually the pins will turn black after a month or so after leaving the factory. The pins can be wiped clean with an eraser and can be tinned normally, which has no effect on performance. Specifications: A10K, A20K, A50K, A100K, A100K. byJuly 4, 2026