EVH 5150 III EL34 50w C137 Mod - Blue Channel Demo

[Dr. Tweedbucket]

Something to consider, you can put the mod on a toggle switch, since all it's doing is disconnecting one connection of one component.

Yeah, that might work out well. I wonder also if I mess around with the value of the cap ... go up or down in capacitance value to see how it shapes the tone, that might be interesting too. Over all I think it's going to be a cool amp.

 

[Dr. Tweedbucket]

Sounds great man.

So I was thinking based on the convo so far that this was similar to my Recto switch for 6L6 vs EL34s - where it adjusts the bias? I know nothing about the layout of this amp nor am I an EE but C137 doesn't look like it would be in a conducive spot for a switch let alone a pot.

Go to the :55 ish mark here. Not sure what this guy did exactly - it looks like he removed C137 altogether. Kinda hard to tell.

curious none the less...

That is one jacked up video.... we have to guess what values he installed .... hmm let's see, I'll put in a couple of 1 meg ohm resistors or maybe zero ohm jumpers .... let me flip a coin and call it good.