022µF Mallory Capacitors 20 AWG ground bus wire with PTFE insulation These potentiometers require a 3/8 mounting hole. 50s-style wiring lets you retain more high-end and clarity with less treble loss when lowering the volume. 022 controls a narrower frequency range. The result is a slightly crisper, clearer sound with a more detailed high end. Hand-wired with the highest quality parts and cleanest solder connections.This wiring harness will give you the clearest possible.