To me, it looks like a relatively simple enough amp circuit to understand, a lot of it is pretty standard, the tone-stacks for the two input channels appear to use typical Fender component values, so the schematic seems to be a bit Fender-ish, with a different type of power tube used in the power amp, a pair of 6DQ6A tubes rather than 6L6 tubes, all the preamp and phase inverter tubes are 12AX7, so my guess is that Maton based the amp on one of Fenders models, so once it's back up and running again it should have a Fender-ish tone.
Last edited by DrNomis_44; 11-02-2020 at 12:59 PM.