I did. R5 at 150k is a really unusual value there and helps make this the fuzziest, most distorted Big Muff I've ever built.

It looks like the "FD3-B Dual Range" https://www.effectsdatabase.com/model/gmelectronics/fd3/b (same unit as this one) https://www.effectsdatabase.com/model/gmelectronics There's also the potentiometer board: High #1, Low #1, Intensity #2&3 are connected. https://i.imgur.com/STLAYGW.jpg

Thanks for the information. It sounds like the Ibanez will be different enough for me to try as I like the Superfuzz thing. I also made the Ace Tone FM-2

Have you seen the Guyatone TZ-2, which replaces Q1,Q2,&Q6 with op amp stages?
viewtopic.php?p=174745

What do you think of the Ibanez Standard WAU Fuzz, with the different first stage?



Also curious how the different tone control sounds.

Adding the octave trimpot is just what I needed. It could just be a matter of taste as I had a matched pair in the octave section, but putting it a little off center sounded best to me with heavier sustain. I looked at the Watson Superfuzz clones, both the vintage looking FY-6 and the EFY-6 (with to...

Correction: the 100k (to ground) present on the original between the diodes and volume isn't on the Vision Octavia trace.

Vince, thanks for such a great tracing job! This is is a really heavy doom fuzz.
I built it using this vero layout:
dirtboxlayouts.blogspot.com/2021/05/dunwich-amplification-wizard-fuzz-big.html
https://dirtboxlayouts.blogspot.com/202 ... z-big.html

https://dirtboxlayouts.blogspot.com/202 ... witch.html

dirtboxlayouts.blogspot.com/2020/12/colorsound-sustain-module-1-switch.html

I also like the tone, but thought it needed more distortion, especially as it was marketed as being good for drop tunings. I've built two from different layouts. I experimented changing the 4.7k/47n to 1k/220n, as said above, which was good enough. I also tried 470ohm/470n for a very extreme metal d...

Thank you for your trace, I've been interested in this one for some time. I just drew up a tone control board to drop in my (2 control version) clone, replacing the 10n between Q2 & Q3, and it works well. https://i.imgur.com/bA2JXgx.jpg Now I'll do the other mods. Is this right to convert a stoc...

This also has a noise gate, and I'm always curious how they implemented that.

The Catalinbread Manx Loaghtan was another Muff with Baxandall EQ. The manual gave some suggested settings to get close to triangle and rams head mid scoops. https://catalinbread.com/pages/manuals Thanks for the good explanation on the tone control too. I've really liked it on other builds like the ...

If not 2SD352B like the original, you can try an AC176 as used in the Tone Reaper, another silicon/germ hybrid MK3. Or see what susbtitutes others used in that. I'd like other suggestions as this circuit isn't usually using NPN transistors.

Big Thanks to Motter for the dismantling and tracing and thanks to: https://dirtboxlayouts.blogspot.com/2020/03/keeley-fuzzbender.html for a layout. I built it and sent Motter this clip which he says sounds like his: https://soundcloud.com/user-562468024/keefuzzbenderclone-20200310a https://soundclo...

Yes, that's very good as the Buzzaround and Dizzy Tone didn't have normal volume controls. The bias "balance" pot to Q3 had to do double duty and forced you to compromise if you liked a sound that wasn't at the volume level you needed.

Thanks, Motter. I did an overlay with the traces on the back. Bass and treble lugs #1 & #3 connect, as is normal for a gyrator 2 band. http://www.muzique.com/lab/gyrator.htm The 2SD352B mentioned upthread is NPN. Is IC3 set up as a voltage doubler for the other IC's? The "A" row on the...

No information on that yet, All the low gain ones I've used have sounded good.

I built it last year from here, where you got the layout: http://dirtboxlayouts.blogspot.com/2019/10/damsolasound-tonebender-mk-ii-hybrid.html It's a small TBmk2 run mentioned on the DAM forum where Q2 &Q3 are low gain silicon, yet Q1 remains germanium, so it cleans up as you would expect. The g...

I'm mostly curious about the BIAS control. It's a dual pot. Is part of it like the ones on pre-MKIII circuits like the Buzzaround and Dizzy Tone which control power to Q3's collector? Or like the difference between the earlier and later MKIII's (sometimes called MKIV) at Q1's base? That change doesn...

Yes, putting a lower gain one in Q2 got rid of all the hiss. I also tried a germ. and it sounded fantastic.
How different, if at all, did this sound and feel for you compared to the all germanium models?