Traynor YVM-1 Conversion to Guitar Amp Suggestions

[Jazz P Bass]

The bypass capacitor on V1 cathode is what makes a Marshal a Marshal.
The low value effectively removes most bass frequencies which do not sound good when distorted.
You are in the ballpark with the two values that you have.
The higher value will pass more bass.
Interestingly, this is the capacitor that gives some Fender amps that 'fart' sound.
They use a 25uf.
Lowering that to 15, 10 or 4.7 uf can remove that noise.

[misterc57]

Very slow progress as I search for parts and try to figure out placement of components and over think... Enjoying the project.

I am bypassing original Traynor V1 and designating Traynor V2 - V4 as JCM800 V1 - V3.

I am progressing from V1 to V3 and still have not completed all of V1.

Some leads are long for now as I will need to order correct value pots and just going with what is there for now.

Hope to test/adjust voltages when done with V3.