Printed/Published Online Designs

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DO NOT post requests in this forum. Pretty please.

Last post by lolbou « 22 Nov 2009, 21:23
Replies: 1
by culturejam » 22 Nov 2009, 21:18

Pretty please, with sugar on top.

Don't post in this forum asking is there is a schematic or layout or info on XXX pedal.

There is a subforum...

1 Replies

43395 Views

Last post by lolbou
22 Nov 2009, 21:23
Shure Level Loc Compressor

Last post by bow_and_error « 11 Apr 2021, 03:51
Replies: 21
by bow_and_error » 04 Mar 2021, 01:58
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Rating: 3.9%

Has anybody played around with the Shure Level Loc Compressor circuit before? I has popped up on a few pro audio forums ( here & here ) and I was...
21 Replies

898 Views

Last post by bow_and_error
11 Apr 2021, 03:51
Cabsims... and even more cabsims

Last post by jmpj45 « 09 Apr 2021, 22:10
Replies: 68
by temol » 10 Sep 2017, 14:52
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Rating: 9.7%

I have eight different* cabsims laying on my desk. All diy work. And I have just made very short recording - for fun and for a comparison. Equipment...
68 Replies

21892 Views

Last post by jmpj45
09 Apr 2021, 22:10
Fodera, Sadowsky, aguilar, and other bass preamps

Last post by george giblet « 06 Mar 2021, 02:53
Replies: 211
by quaternotetriplet » 14 Dec 2008, 06:20
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Rating: 24.5%

Hi anyone who have schematics of an outboard bass preamp??
211 Replies

102579 Views

Last post by george giblet
06 Mar 2021, 02:53
Treble Booster - Everyday with Practical Electronics 1995

Last post by Manfred « 20 Feb 2021, 21:43
Replies: 2
by pedalgrinder » 06 Jan 2012, 13:49

Rating: 1.7%

Hello fellow pedalologists,

Here is a simple but a good design well i believe it is. You can both boost your treble and cut your treble handy to...

2 Replies

1319 Views

Last post by Manfred
20 Feb 2021, 21:43
Stellan Lehrberg's Slow Finger (Mark Hammer's Tube Sound Fuzz Adapter mod)

Last post by The G « 13 Feb 2021, 16:03
Replies: 7
by nmtom » 29 Mar 2013, 18:21

Rating: 0.4%

I started a pedal a few(?) years ago. Now I can't find the schematic and, after searching the internet, I can't even figure out what it is. Luckily,...

7 Replies

5699 Views

Last post by The G
13 Feb 2021, 16:03
Acoustic 360 Fuzz

Last post by tommymariotti « 26 Jan 2021, 08:50
Replies: 45
by Barcode » 01 Nov 2010, 03:03
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Rating: 0.2%

So, I've been throwing around the idea of doing as Viva ANalog did and build up a pedal version of the fuzz section of the Acoustic 360 bass head...
45 Replies

10183 Views

Last post by tommymariotti
26 Jan 2021, 08:50
A "Smooth Fuzz" Unit

Last post by walrusgumboot « 10 Nov 2020, 09:40
Replies: 1
by Mellotron Man » 27 Jul 2020, 21:56

Rating: 0.9%

...and the units keep on coming!!! This is from the September 1979 issue of British publication Practical Electronics . It's different from the...

1 Replies

1269 Views

Last post by walrusgumboot
10 Nov 2020, 09:40
Look Mum No Computer 2399 Triple Splashback Delay

Last post by ppluis0 « 09 Nov 2020, 01:28
Replies: 1
by Nocentelli » 07 Nov 2020, 14:39

Rating: 1.1%

2399+Triple+Splashback.png

Amazing crazy 3xPT2399 circuit, schematic is a bit tricky to interpret, might try and breadboard a stripped down...

1 Replies

521 Views

Last post by ppluis0
09 Nov 2020, 01:28
Guitar Distortion Pedal, Popular Electronics, September 1999

Last post by Manfred « 26 Sep 2020, 10:36
Replies: 4
by modman » 13 Sep 2020, 18:56

Rating: 1.3%

Step Into the Spotlight With The Guitar Distortion Pedal , Popular Electronics , September 1999
PE.1999-09-OCR-Page-0041.jpg...

4 Replies

1241 Views

Last post by Manfred
26 Sep 2020, 10:36
Universal Reverb, Radio and TV Experimenter, Jan 1967

Last post by modman « 19 Sep 2020, 07:48

by modman » 19 Sep 2020, 07:48

Rating: 0.2%

Universal Reverb Radio and TV Experiment January 1967.jpg
Article in pdf: Universal Reverb Radio and TV Experiment January 1967.pdf

0 Replies

926 Views

Last post by modman
19 Sep 2020, 07:48
PT2399 Reverb Unit

Last post by Mellotron Man « 19 Aug 2020, 20:50

by Mellotron Man » 19 Aug 2020, 20:50

Rating: 0.6%

Another one from the collection. It was passed onto me by an ex-work colleague (ex-colleague, as I'm now retired), who says he found it on the...

0 Replies

1288 Views

Last post by Mellotron Man
19 Aug 2020, 20:50
Split-Phase Tremolo Unit

Last post by Mellotron Man « 14 Aug 2020, 21:00

by Mellotron Man » 14 Aug 2020, 21:00

From Electronics & Music Maker. The original source is at the top of the Write-Up tab

Split-Phase Tremolo.xlsx

0 Replies

1025 Views

Last post by Mellotron Man
14 Aug 2020, 21:00
Combined Fuzz & Sustain Unit

Last post by Mellotron Man « 07 Aug 2020, 15:41

by Mellotron Man » 07 Aug 2020, 15:41

Another one for the collection. Details of its origin are at the bottom of the 'Write-Up' tab on the attached Spreadsheet.

Sustain-Fuzz, ETI...

0 Replies

856 Views

Last post by Mellotron Man
07 Aug 2020, 15:41
Tap Tempo for BBD

Last post by POTL « 06 Aug 2020, 10:38
Replies: 2
by POTL » 05 Aug 2020, 21:23

Hello.
The idea behind Tap Tempo in analog modulation and delay pedals is not new, but still hasn't been covered in detail at the DIY level.
I looked...

2 Replies

661 Views

Last post by POTL
06 Aug 2020, 10:38
A Phaser Unit

Last post by uncleboko « 29 Jul 2020, 20:41
Replies: 3
by Mellotron Man » 28 Jul 2020, 23:53

Rating: 0.4%

From British magazine Practical Electronics , this looks good, I've got a few other Phaser circuits, and they don't compare to this.

Phaser 2.xlsx

3 Replies

879 Views

Last post by uncleboko
29 Jul 2020, 20:41
FX-1 Effects Link

Last post by FausterCraster « 28 Jul 2020, 16:44
Replies: 1
by Mellotron Man » 26 Jul 2020, 18:39

Rating: 0.2%

From Electronics & Music Maker , this is a unit that selects the order in which multiple stompboxes are connected between the musician and the...

1 Replies

604 Views

Last post by FausterCraster
28 Jul 2020, 16:44
Guitar Overdrive Unit

Last post by Mellotron Man « 27 Jul 2020, 16:29

by Mellotron Man » 27 Jul 2020, 16:29

Rating: 0.2%

This is a circuit I've had from something I photo-copied 40-odd years ago. Basically, it's a Fuzz unit, but with a few bells & whistles .
I've...

0 Replies

917 Views

Last post by Mellotron Man
27 Jul 2020, 16:29
Escobedo - Jawari

Last post by mitchelr « 13 Jun 2020, 10:46
Replies: 3
by timbo_93631 » 11 Apr 2012, 05:40

Rating: 1.1%

I have one of these coming in for repairs and a re-house, anyone have a schematic for it floating around? The one that used to be out there is no...

3 Replies

742 Views

Last post by mitchelr
13 Jun 2020, 10:46
Anyone successfully tried the Coda Effects relay switching?

Last post by novoselic « 10 May 2020, 16:32
Replies: 25
by The Rotagilla » 22 Jan 2017, 13:51
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Rating: 0.6%

DISCLAIMER - PROGRAMMING IS NOT MY STRONGEST SKILL

Link to the article -

Benoit's article uses the C programming language to program the PIC and...
25 Replies

10322 Views

Last post by novoselic
10 May 2020, 16:32
Making Harmonic Percolator/Jerkulator Volume More Useable

Last post by soulsonic « 08 Mar 2020, 22:59
Replies: 2
by Jcdenton825 » 03 Feb 2019, 06:23

Hey everyone!

I just finished up a Harmonic Jerkulator build, from Escobedo's wonderful schematic. I really like the sound of this pedal, but that...

2 Replies

1616 Views

Last post by soulsonic
08 Mar 2020, 22:59
Tim Escobedo's "Folkurban" circuits. Zipped.

Last post by modman « 26 Jan 2020, 03:10
Replies: 24
by culturejam » 17 Mar 2012, 15:41
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Rating: 5.8%

I've recently noticed that Tim's great site at is coming up as a virus, trojan horse, or other bad things in my browser. So I thought I'd grab all...
24 Replies

7753 Views

Last post by modman
26 Jan 2020, 03:10
Stompboxology Echo-Matic DIY Tape Delay

Last post by Jim-Analog « 15 Jan 2020, 22:46
Replies: 5
by Motter » 01 May 2017, 02:53

Rating: 1.7%

Here's something I've been working on lately.

The Echomatic is an old Stompboxology circuit which utilizes a quad opamp as two splitters and two...

5 Replies

2905 Views

Last post by Jim-Analog
15 Jan 2020, 22:46
How much gain out of a Jack Orman's MOSFET booster?

Last post by george giblet « 02 Oct 2019, 00:00
Replies: 7
by sopapo1 » 25 Sep 2019, 20:54

Hello Im not able to put put more than 14 db-15 db out of a jack orman mosfet booster, its biased at 5.3 v and Im using a bs170 ( with less volt the...

7 Replies

2637 Views

Last post by george giblet
02 Oct 2019, 00:00
Building a clone of Tychobrahe Parapedal wah, some mods?

Last post by mikewford « 15 Sep 2019, 12:02
Replies: 5
by mikewford » 01 Sep 2019, 18:07

Rating: 0.2%

Hullo! Well, at last there is a pcb for the clone of the very, Iomi-esque, tychobrahe parapedal available from Pedalpcb. I was lucky to get a nice 2w...

5 Replies

2224 Views

Last post by mikewford
15 Sep 2019, 12:02

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