Search found 73 matches

by EmmG
04 Aug 2023, 15:29
Forum: Vintage Stompbox Corner ( ... - 1975)
Topic: Maestro - FZ-1S Fuzz-Tone
Replies: 22
Views: 20297

Re: Maestro - FZ-1S Fuzz-Tone

I just built one of these, thanks for making the gerber files available. The 10n next to Q2 should be 100n. The 5n6 next to 1M5 should be 20n. The mods I've read about elsewhere have worked well: Adjust the 47k off Q4 to reduce gating. Lower the 470k from the flatter fuzz tone setting to match the s...
by EmmG
10 Mar 2023, 18:09
Forum: Vintage Stompbox Corner ( ... - 1975)
Topic: Ace Tone - FM-3 Fuzz Master [schematic]
Replies: 70
Views: 33463

Re: Ace Tone - FM-3 Fuzz Master [schematic]

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.
by EmmG
20 Jul 2022, 02:21
Forum: Vintage Stompbox Corner ( ... - 1975)
Topic: GM Fuzz Up FD-3B
Replies: 24
Views: 3904

Re: GM Fuzz Up FM-3B

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
by EmmG
10 Jun 2022, 22:44
Forum: Vintage Stompbox Corner ( ... - 1975)
Topic: Univox - Superfuzz [schematic]
Replies: 456
Views: 299423

Re: Univox - Superfuzz [schematic]

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
by EmmG
10 Jun 2022, 01:07
Forum: Vintage Stompbox Corner ( ... - 1975)
Topic: Univox - Superfuzz [schematic]
Replies: 456
Views: 299423

Re: Univox - Superfuzz [schematic]

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

Image

Also curious how the different tone control sounds.
by EmmG
09 Jun 2022, 08:47
Forum: Vintage Stompbox Corner ( ... - 1975)
Topic: Univox - Superfuzz [schematic]
Replies: 456
Views: 299423

Re: Univox - Superfuzz [schematic]

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...
by EmmG
12 Jun 2021, 02:44
Forum: Boutique Stompboxes dissected...
Topic: Roger Mayer Vision Octavia [traced]
Replies: 4
Views: 2768

Re: Roger Mayer Vision Octavia [traced]

Correction: the 100k (to ground) present on the original between the diodes and volume isn't on the Vision Octavia trace.
by EmmG
25 May 2021, 16:36
Forum: Boutique Stompboxes dissected...
Topic: Dunwich - Wizard Fuzz [traced]
Replies: 9
Views: 5167

Re: Dunwich Wizard Fuzz [traced]

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
by EmmG
12 May 2021, 04:53
Forum: Vintage Stompbox Corner ( ... - 1975)
Topic: Colorsound - Sustain Module with 1 switch [schematic]
Replies: 30
Views: 15247

Re: Colorsound - Sustain Module with 1 switch [schematic]

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

dirtboxlayouts.blogspot.com/2020/12/colorsound-sustain-module-1-switch.html
by EmmG
31 Mar 2021, 11:45
Forum: Boutique Stompboxes dissected...
Topic: Mad Professor - Stone Grey Distortion [traced]
Replies: 111
Views: 53844

Re: Mad Professor - Stone Grey Distortion [traced]

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...
by EmmG
18 Feb 2021, 16:14
Forum: Boutique Stompboxes dissected...
Topic: Roger Mayer Vision Octavia [traced]
Replies: 4
Views: 2768

Re: Roger Mayer Vision Octavia [traced]

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...
by EmmG
18 Nov 2020, 17:39
Forum: Modern Stompbox Effects (1975 - ...)
Topic: MXR - Fullbore Metal [guts]
Replies: 21
Views: 17892

Re: MXR - Fullbore Metal [guts]

This also has a noise gate, and I'm always curious how they implemented that.
by EmmG
11 Aug 2020, 23:02
Forum: Boutique Stompboxes dissected...
Topic: ThorpyFX Fallout Cloud (formerly knows as Muffroom Cloud)
Replies: 23
Views: 7085

Re: ThorpyFX Fallout Cloud (formerly knows as Muffroom Cloud)

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 ...
by EmmG
11 Mar 2020, 17:14
Forum: Boutique Stompboxes dissected...
Topic: Keeley - Fuzz Bender [traced]
Replies: 40
Views: 30426

Re: Keeley - Fuzz Bender [traced]

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.
by EmmG
10 Mar 2020, 19:51
Forum: Boutique Stompboxes dissected...
Topic: Keeley - Fuzz Bender [traced]
Replies: 40
Views: 30426

Re: Keeley - Fuzz Bender [traced]

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...
by EmmG
14 Feb 2020, 20:25
Forum: Boutique Stompboxes dissected...
Topic: Keeley - Fuzz Bender [traced]
Replies: 40
Views: 30426

Re: Keeley - Fuzz Bender [traced]

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.
by EmmG
14 Feb 2020, 07:30
Forum: Boutique Stompboxes dissected...
Topic: Keeley - Fuzz Bender [traced]
Replies: 40
Views: 30426

Re: Keeley - Fuzz Bender [traced]

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...
by EmmG
02 Feb 2020, 09:48
Forum: Boutique Stompboxes dissected...
Topic: Sola Sound Hybrid GE-SI Tone Bender MKII
Replies: 7
Views: 3109

Re: Sola Sound Hybrid GE-SI Tone Bender MKII

No information on that yet, All the low gain ones I've used have sounded good.
by EmmG
01 Feb 2020, 22:38
Forum: Boutique Stompboxes dissected...
Topic: Sola Sound Hybrid GE-SI Tone Bender MKII
Replies: 7
Views: 3109

Re: Sola Sound Hybrid GE-SI Tone Bender MKII

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...
by EmmG
01 Feb 2020, 19:15
Forum: Boutique Stompboxes dissected...
Topic: Keeley - Fuzz Bender [traced]
Replies: 40
Views: 30426

Re: Keeley - Fuzz Bender [traced]

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...