Soundcraft SM-20 MASTER MOTHERBOARD SC3909 ISS 4 PCB The original plastic ones are

The original plastic ones are actually not made very well and a few thou out though it does not pull them too far away on the wow and flutter specs

Many people buy this so they can make an extra head stack so have say a machine that can use 4 tracks but want to use two so buy this plate and then the heads and set up a second head stack

on the pcb its marked 122 112r 112

Had one of these lying about so put it on here

these have been professionally relapped and all rated good/ok by the relap house

Soundcraft SM-20 MASTER MOTHERBOARD SC3909 ISS 4 PCB The original plastic ones areMother board from the SM 20 Heavy contact for post options I have one board in the UK without the cables so could ship from there as can be cheaper faster for post