Bypass BMP tone??

[Jaicen_solo]

Anybody care to suggest the best way to bypass the BMP tone control??
I've just bought a Harley Benton GA-5 which is basically an Epi Valve Junior with a BMP tone stack between the Pre-amp and the power amp. Basically, in the amp the whole tone control is subbed in place of a 1k5 resistor. Can I just short the PCB traces?

[John Lyons]

You can just put a switch or wire jumper in to bypass around the tone control. The level of the preamp will jump up a bit but you can add in a resistive divider to bring the level down to unity. The big muff control has a pretty good mid dip so bypass it will sound pretty loud. This may sound good though...depends I guess on the gain staging of the amp and if you will posibly overlaod the output tube. try it and see.

John

[petemoore]

http://www.muzique.com/lab/dtone.htm
Anybody care to suggest the best way to bypass the BMP tone control??
I've just bought a Harley Benton GA-5 which is basically an Epi Valve Junior with a BMP tone stack between the Pre-amp and the power amp. Basically, in the amp the whole tone control is subbed in place of a 1k5 resistor. Can I just short the PCB traces?
  Wire should bypass it plenty good, probably too good if switching in the wire without something like a 1:1.5 [I dunno, try it] volume increase...some damping would bring this closer to 1:1. For BMP output, I think the impedances through the 22k path can be ignored, left there for both tone choices.
  Starting with a pot in the bypass wire, or pot wired as volume control would be the easy way to mount an extra pot for this or use it to find fixed resistor values for a set volume of tone bypass.
  Some 'alternate' filtering could also be used...
  'Raw' BMP...lol.