Nefarious Bad Stone Phase Shifter

[Stef]

I acquired this vintage monster sometime ago in a trade- how can you not ‘dig’ that name (EH forever dominates that category) . It has some cool properties, nice lush sweep up to a proxy ring mod and a unique switch that allows for manual phase shift. The issue is that like the SS there’s a volume drop that I’d like to fix. If anyone has any insight on this I’d really like to make the changes ; other mods might be interesting too. :wink:
Here’s a schematic from JD’s site: http://www.generalguitargadgets.com/v2/diagrams/badstone_2.jpg

Thanks, Stefan

[smoguzbenjamin]

Why don't you add a JFET booster with a trimpot so you can set it to unity gain when it's on?

[Stef]

Thanks Ben, I thought about a jfet booster and if it comes down to it there is that option as well as the ‘living with it’ one as well :wink:. Truthfully I'm hoping that there might be an idea for a volume mod similar to the one done in the small stone ; working with what is already in the guts.

Stefan

[Gringo]

An lpb is even cheaper, i did that to my mxr envelope filter, worked just fine.

[smoguzbenjamin]

Yeah but FETs have nicer impedances and are lower parts count