Replacement switch with adapter PCB.
This is the best alternative...
Transistor: Matched Pair
Dual NPN transistor.
Pack of 9 cables, 3.5mm Modular Synth Mono Patch Cable
TR-808 PCB, circuit board easy...
NOS 4558 op-amp
UPD444C Static Cmos Ram
Stored and shipped with anti static bag.