Search found 61 matches

by EmmG
Yesterday, 23:02
Forum: Boutique Stompboxes dissected...
Topic: ThorpyFX Fallout Cloud (formerly knows as Muffroom Cloud) [traced]
Replies: 20
Views: 1682

Re: ThorpyFX Fallout Cloud (formerly knows as Muffroom Cloud) [traced]

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: 39
Views: 5691

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: 39
Views: 5691

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 I 'm using a pai...
by EmmG
14 Feb 2020, 20:25
Forum: Boutique Stompboxes dissected...
Topic: Keeley - Fuzz Bender [traced]
Replies: 39
Views: 5691

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: 39
Views: 5691

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 gate pot lead...
by EmmG
02 Feb 2020, 09:48
Forum: Boutique Stompboxes dissected...
Topic: Sola Sound Hybrid GE-SI Tone Bender MKII
Replies: 7
Views: 1444

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: 1444

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 goal ...
by EmmG
01 Feb 2020, 19:15
Forum: Boutique Stompboxes dissected...
Topic: Keeley - Fuzz Bender [traced]
Replies: 39
Views: 5691

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...
by EmmG
29 Jun 2019, 21:01
Forum: Vintage Stompbox Corner ( ... - 1975)
Topic: Zonk Machine - middle transistor is silicon ??? trim pot
Replies: 33
Views: 11038

Re: Zonk Machine - middle transistor is silicon ??? trim pot

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?
by EmmG
26 Jun 2019, 04:41
Forum: Vintage Stompbox Corner ( ... - 1975)
Topic: Zonk Machine - middle transistor is silicon ??? trim pot
Replies: 33
Views: 11038

Re: Zonk Machine - middle transistor is silicon ??? trim pot

Cool stuff, acidfuzz. I just built a clone drawn by a friend who's been following this thread and posted to his new layout blog. https://dirtboxlayouts.blogspot.com/2019/06/hornby-skewes-zonk-machine-mk-i-sige.html Here's a hissy audio clip verifying it, even though I don't have the "right" parts ye...
by EmmG
31 Mar 2019, 23:16
Forum: Boutique Stompboxes dissected...
Topic: Bearfoot - Candy Apple Fuzz [traced]
Replies: 30
Views: 9929

Re: Bearfoot - Candy Apple Fuzz [traced]

Comparing a normal Candy Apple Fuzz, with a Gated Apple Fuzz shows a trim pot in series with, not instead of, R18 (5.6k). I don't know the value. I've been experimenting with pots and find anywhere between 2k to 10k usable. I can set it so it gates only the hiss and background noise, while preservin...
by EmmG
23 Oct 2018, 19:50
Forum: Modern Stompbox Effects (1975 - ...)
Topic: Bixonic - Expandora II [schematic]
Replies: 5
Views: 5372

Re: Bixonic - Expandora II [schematic]

Thanks to Digi2t for sending me his 2000R version 3 Godlyke reissue schem. It's the one with the 3 external switches, not the Expandora II, which is the main subject of this thread. Here it is re- uploaded. The difference I was most interested in is that guitar/bass voicing switch at the end. I modd...
by EmmG
14 Oct 2018, 17:08
Forum: Boutique Stompboxes dissected...
Topic: Basic Audio Wildcat
Replies: 4
Views: 2609

Re: Basic Audio Wildcat

I found another shot. Comparing all of them, the values appear to be: 2.7k (sometimes 2.74K), 3.9k, 10k, 22k, 100k (x2), 270k, 1M with one of the pcb's having an extra 1k. Other than a few values, they don't match up with the Gretsch.
by EmmG
25 May 2018, 14:08
Forum: Boutique Stompboxes dissected...
Topic: Pigtronix - Fat Drive [traced]
Replies: 5
Views: 4678

Re: Pigtronix - Fat Drive [traced]

May have similarities to the Polysaturator, also uses a 4049.
https://www.freestompboxes.org/viewtopic.php?f=7&t=28665
by EmmG
02 May 2018, 22:42
Forum: Boutique Stompboxes dissected...
Topic: VFE Pedals official schematics - 11 so far
Replies: 27
Views: 10769

Re: VFE Pedals official schematics - 11 so far

I got it as a Patreon reward, but they're selling it with pots now. They should be on the same page as the Eagle files are being sold. It came with a separate charge pump board to increase power AFTER the switching section. A person who bought a fully assembled one showed me the same for his. Mine d...
by EmmG
02 May 2018, 12:07
Forum: Boutique Stompboxes dissected...
Topic: VFE Pedals official schematics - 11 so far
Replies: 27
Views: 10769

Re: VFE Pedals official schematics - 11 so far

The pots that came with my Standout PCB:

Image
by EmmG
21 Mar 2018, 15:32
Forum: Boutique Stompboxes dissected...
Topic: BJF - Mighty Red Distortion
Replies: 33
Views: 13660

Re: BJF - Mighty Red Distortion

I'd love to build it, I liked their Stone Grey distortion. Is this perhaps Guv'nor/Crunch Box related?

Your front and back pics are pretty clear, and you'll probably only have to remove some of components to make out the trace underneath. Then we can draw an overlay with component values.
by EmmG
07 Mar 2018, 19:33
Forum: Modern Stompbox Effects (1975 - ...)
Topic: Ibanez TS-7 D7 Diode
Replies: 8
Views: 1977

Re: Ibanez TS-7 D7 Diode

Schem. says 1N4003
by EmmG
10 Feb 2018, 01:13
Forum: Boutique Stompboxes dissected...
Topic: Pigtronix - Polysaturator
Replies: 3
Views: 1937

Re: Pigtronix - Polysaturator

Thanks for the schematic, BuGG. Someone drew this layout up for me. Built and verified! https://i.imgur.com/n54qbOZ.jpg The original comes with an 18v supply, and the pedal enclosure says "9V - 15V". The War Hog is a modified version more suited to metal that I'd like to see too. https://i.imgur.com...
by EmmG
07 Jan 2018, 08:16
Forum: Boutique Stompboxes dissected...
Topic: Earthquaker Devices - Erupter [traced]
Replies: 12
Views: 4775

Re: Earthquaker Devices - Erupter [traced]

This asks for the 42TL019, but it's easier for me to get the larger 42TM019 as used here:
http://www.muzique.com/lab/pickups.htm.

It says they have similar response.