Fostex G-16S G-24S tension arm sensor PCB 8251870-102 8251870-103

I have one tension arm from the G-24S one inch machine

These machines are rare and do not get parts often.

I thought this was a universal unit but seems no as connectors are different so i have two variants one with the IF transformer one not.

I had  one arm in from a 24 then 2 more from 16 i am guessing they are he same in both units

This is rare and gets broken I have not found a source of the sensors