Soul Preacher Question

[Kipper4]

Heres the schemo

http://www.montagar.com/~patj/soulprch.gif

I notice theres a 150nano cap on switch two.
What is it for please?
Is it some sort of soft knee/ Hard Knee switch?
If so how does it work please.
I've read that its a modded orange squeezer too.
Thanks
Rich

[theehman]

It's a treble boost.

[Kipper4]

Thanks

So in this video. this model has an attack switch.
Has anyone any idea how to do this mod?
Thanks



http://www.youtube.com/watch?v=TqIfgc7IVF4

[duck_arse]

I'd guess, and not look at the video, and say "the 1uF tant is charged by the transistor, through the 20k in its collector. smaller R will mean more current, faster charging."  I'd also say the 4M7 was discharging that same cap, and would be a decay mod-in-waiting.

and then I'd say "[edit:] not the collector, the emitter. It's upside down, Miss Jane."

[Kipper4]

Cheers guys thanks for that.
I'll do some searching and see what others have done with the orange squeezer too.