Thanks. I'll give that a try. Don't know if it'll work with my phone. I took a look and it seems a but confusing to me.

Oh, and I was blaming those poor AC128s for the muddy sound. After fixing the cap problem, it's now very bright sounding.

Thank you for your replies Phil and Juan. I have it working much better now. It turns out I had accidentally placed the electrolytic cap backwards in the circuit and that was driving me crazy. I didn't notice until I had swapped every resistor (except the 2k2). It's now getting close to that Yardbirds sound, but it could do with some higher gain transistors.  I want it to be more buzzy sounding. I'm. Pretty sure that Mr.Page used a professional Mk. II bender. I'm also working on one of those and it's giving me more problems than this Mk.I, if you can believe that. As usual, the amp I'm using is my early 70s Kasino. Thanks to Juan's suggestions,  among others, It's still working. These tone benders are certainly teaching me a lot about germanium fuzz. Thanks again.

Yes, that's the one. Identical to the one I have in my binder. Thank you.

Yes, that's the one. I was wanting to build it because it's the circuit that was used by Iron Butterfly.

I've been trying to get a schematic posted on here,  but I can't. If someone could just recommend some acceptable voltages for a Sola-Sound Tone Bender Mk.I , it would really help alot. Thanks.

I give up. This stupid phone won't do what it's supposed to.

The schematic is on the mosrite forum. I can't get my phone to post it.

Okay. I'll see if I can do that.

I have a schematic on a piece of notebook paper. It's just that my phone won't post an image on here. I tried last night. I saved an image of the schematic on my phone and it just won't let me post it.

Does anyone know the correct voltages for this circuit? I checked them on mine and here's what I got. With attack on zero : Q1- C:-9.61v, B:-1.80v, E: -2.31v. Q2- C: -7.47v, B: 0v, E: 0v. Q3- C: -6.47v, B: -0.02v, E: 0v. With the attack control on full, here's what I got. Q1- C: -9.60v, B: -1.59v, E: -2.05v. Q2- C: -0.13v, B: -0.14v, E:0v. Q3- C: -6.81v, B: -0.03v, E: 0v. Are these even close to being correct?

Okay. I can't post the schematic. I'm doing this from my phone and it keeps saying "low memory". I really hate modern technology. It's the Sola-Sounds LTD. version. 

Okay, so I've reduced the low end response by changing the 470 k resistor out for a 180 k. It's much brighter sounding now and gets close the Yardbirds- era Jeff Beck sound. There's still a problem with the note decay. As the signal fades, there's a sizzling noise. Is it supposed to do that? There's also a bit of hiss when there's no signal going in. Do I need to swap Q3 for one with more leakage? The effect is also pretty gated at maximum attack setting. Is this also a leakage related problem?

I don't have any way of posting schematics. I tried every one of those transistors and the most I got from it was a very low output with a short, gated, fatty decay.

I don't have any way of posting the schematic. The one I built is the Sola-Sound. I used all the stock values on the resistors. The caps are the stock values, except for the electrolytic. I used an axial lead 22 uf.  The transistors are AC128 with the and leakage as follows: Q1 hfe  60  with 0.10ma leakage, Q2 the 73 with 0.06 ma leakage and Q3 hfe 62 with 0.06 ma leakage. There's a hissing noise in it and it has way too much low end.