...and have been at it for almost 7 months! I'm trying to build 10 pedals for a charity in the name of the late michael houser who died in 2002 due to pancreatic cancer. This is what i've come up with:
Input>Switch on/off for ego driver (modded)>switch on/off for RTO style mods to TS9 circuit into fat control mid boost>output all running off the road rage.
The midboost at the end is the key IMO as it not only give a push in the low mids it also allows you to get humbucker sounds out of single coils if needed. By stacking the EGO>RTO>Mid-Boost in that specific order I'm able to get a ton of gain without losing much clarity. Not having any sort of buffer before until right before the mid-boost also seems to help things stay consistent so to speak but also remains very dynamic and responsive.
this is a mess because it's a prototype and I want enough slack to get stuff out without de-soldering wires etc...
so 'normal' represents a slightly dirty sound and with both on it does high gain SLO type crunch with amazing clarity for how dirty it is (ala SLO).
ego mods:
- JRC4580D chip
- c3 = 82n or 68n...still on the fence about this one. not a big deal though.
- c8 = 56n (might go back to 47n though, it's only a tad bit more thump)
- no hi/low switch and a 27k for r11, r10 left empty
- I have a 500k in for the gain pot right now but I might go to 1m again. Really though about 750k seems the optimum amount...any suggestions on the best/easiest way to do that would be appreciated. (i'm a moron on pots and switches to say the least)
RTO mods to GGG ts8 pcb
I raised the 47n that comes off the clipping section via the 4k7 resistor to 150n or 180n (can't decide which yet). I also changed the volume pot to B10k rather than 100k, used a jrc4580D, and a 2n4401 for the output buffer tranny.
The fat control circuit has an opa2134 chip instead of the 442 type.
here is what I'm going for:
http://www.youtube.com/watch?v=jBIevxS9pFI
3:05 is 'normal' channel and 3:31 is 'overdrive' channel
I'm going to get some clips posted soon as i've still got a little fine tuning to do.