It's easy. and also'The Tweed' which is covered usingAuthentic Fender© Tweed as used on the reissue amp series. It should also work on any amp with an FX Loop - that said we don't own every amp in the world (working on it!).
Mini Volume Attenuator For Amp Effects Loop - Passive Pedal
Volume Attenuator For Amp Effects Loop - Passive Pedal
SONICAKE FlipVol 2 in 1 Expression EXP Passive Volume Combo Guitar Effect Pedal
5Set PS-900 2 Band EQ Guitar Preamp Passive Volume Tone Control Piezo6539
Ernie Ball VP JR P0 6180 passive volume pedal
SONICAKE FlipVol 2 in 1 Expression EXP&Passive Volume Combo Guitars Pedals