Marshall GV-2 PCB

[Big Paulie]

Currently rehousing this and it's pretty straightforward. Just one question. What are the inductors on the jack. PCB for?
http://www.fileden.com/files/2008/12...0Schematic.pdf

[thermionic]

Interesting... never seen one in a pedal schematic before. As most are ferrite beads, I'd guess they are there to dissipate high frequency noise. They're the kind of components that are added to a circuit as it's being developed to fix a problem.

[ICBM]

They're to suppress RF noise. I doubt they're really necessary in most circumstances, but a lot of manufacturers fit 'belt and braces' stuff like this these days. It's part of the "this equipment must not cause undesirable interference, and must accept all undesirable interference" type regulations.

I think there's a small cap on that board too, which under any normal circumstances won't do anything except affect the tone slightly. If you're intending to do what I was going to, I'd junk everything that isn't on the main board and wire it with a trad true bypass switch, since it's "half-arsed bypass" as stock. (Use the true bypass scheme that allows the circuit input to be grounded, and retain the mute function on the LED switch pole as well, or it may be unstable - or Marshall probably wouldn't have done that.)

I suppose we've blown the gaff on re-housing and releasing it as the next "Marshall in a box" boutique pedal on TGP now though .