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Last post

gallien&krueger 2000cpl

Last post by jmpj45 « 50 minutes ago
Posted in Amplifiers
Replies: 2
by jmpj45 » Yesterday, 22:51 » in Amplifiers

I'm trying to adjust the internal trimmers for the gain stages. I looked up the service manual it says adjust trimmers for 1.4 v on pins 1 and 7 on...

2 Replies

58 Views

Last post by jmpj45
50 minutes ago
WANTED – UK made AB and Dubilier 50K log pots

Last post by Souleyman « Today, 15:12
Posted in Stuff Seen for Sale

by Souleyman » Today, 15:12 » in Stuff Seen for Sale

Hey guys.
Asking just in case. If you have exactly these kind of pots and with noted value and taper I’d be very happy to buy it from you.
I’m not...

0 Replies

8 Views

Last post by Souleyman
Today, 15:12
Shure Level Loc Compressor

Last post by kizzer « Today, 14:02
Posted in Printed/Published Online Designs
Replies: 24
by bow_and_error » 04 Mar 2021, 01:58 » in Printed/Published Online Designs
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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...
24 Replies

1091 Views

Last post by kizzer
Today, 14:02
Pearl Chorus Ensemble CE-22 [schematic]

Last post by GorillaHuman « Today, 13:58
Posted in Modern Stompbox Effects (1975 - ...)
Replies: 17
by rfx » 05 Jul 2011, 21:54 » in Modern Stompbox Effects (1975 - ...)

Cant find much about this one. so here are guts.
if there are questions please post

DSC01402.JPG
DSC01398.JPG
DSC01401.JPG

Rfx

Moderator:...

17 Replies

5786 Views

Last post by GorillaHuman
Today, 13:58
Trip Hazard Optical Disruptor - Assymetric Optical Compressor/Low-Freq Saturator

Last post by bmxguitarsbmx « Yesterday, 23:50
Posted in Boutique Stompboxes dissected...
Replies: 6
by bow_and_error » 29 Aug 2020, 20:36 » in Boutique Stompboxes dissected...

So I recently built the Bajaman Optical Limiter and loved it. It's warm & responsive on bass/baritone guitar, and is better than my Xotic SP at...

6 Replies

1348 Views

Last post by bmxguitarsbmx
Yesterday, 23:50
Etienne Lemery, Double Tremolo and Ring Modulator, in: Electronique Pratique, June 1977

Last post by Manfred « Yesterday, 13:47
Posted in Davidoff Library
Replies: 1
by modman » 07 Apr 2021, 13:05 » in Davidoff Library

Complete article in French in PDF (6 pages): Double Tremolo Ring Modulator HP77_1606.pdf

Schematic and layout:

Double Tremolo Ring Modulator...

1 Replies

232 Views

Last post by Manfred
Yesterday, 13:47
Vox - SATCHURATOR pedal [schematic]

Last post by mbender « Yesterday, 10:05
Posted in Modern Stompbox Effects (1975 - ...)
Replies: 111
by ODwan » 02 Apr 2008, 16:57 » in Modern Stompbox Effects (1975 - ...)
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Anyone has info about that one, yet? Interview with Satch says that they spend several weeks with Vox's R&D team at his house and actually doin' some...
111 Replies

58136 Views

Last post by mbender
Yesterday, 10:05
Type C. OD (reworked OCD) [documentation]

Last post by plush « Yesterday, 09:42
Posted in DIY Projects
Replies: 12
by dylan159 » 15 Apr 2021, 13:32 » in DIY Projects

I can't deny that I've always enjoyed the sound of the OCD, my first veroboard build, but I had a couple of issues with it which I finally decided to...

12 Replies

238 Views

Last post by plush
Yesterday, 09:42
Need help understanding circuit

Last post by phatt « Yesterday, 03:37
Posted in DIY Projects
Replies: 3
by caspercody » 13 Apr 2021, 23:14 » in DIY Projects

Hello

I want to make a pedal out of the Nobel's Sound Studio (none of the modulations) and I am having trouble determining where the clean,...

3 Replies

161 Views

Last post by phatt
Yesterday, 03:37
Top Tone - Light Drive [traced]

Last post by bc108 « Yesterday, 02:44
Posted in Boutique Stompboxes dissected...
Replies: 118
by MWichni » 04 Feb 2012, 10:58 » in Boutique Stompboxes dissected...
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Welcome, I have some gut shots of the Top Tone Light Drive (thanks to one kind person). I believe this is a Pete Cornish SS-2 without an input...
118 Replies

57805 Views

Last post by bc108
Yesterday, 02:44
Rockman X100 - Make it a DIY Pedal

Last post by VivMeLol « 15 Apr 2021, 11:30
Posted in Modern Stompbox Effects (1975 - ...)
Replies: 177
by FeVeR2112 » 28 Oct 2020, 23:44 » in Modern Stompbox Effects (1975 - ...)
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I have been wanting to do this for decades.... Make a pedal that has the Rockman Distortion sound. The chorus and echo would be other pedals.

I...
177 Replies

17115 Views

Last post by VivMeLol
15 Apr 2021, 11:30
MXR M288 Bass Octave Deluxe [gut shots, tracing]

Last post by Jarno « 15 Apr 2021, 08:36
Posted in Modern Stompbox Effects (1975 - ...)
Replies: 18
by Oloorin » 13 Aug 2019, 20:35 » in Modern Stompbox Effects (1975 - ...)

Hello,

I had recently a possibility to take some board pictures of MXR Bass Octave Deluxe.
I also tried to trace as many path as I could.

All...

18 Replies

3841 Views

Last post by Jarno
15 Apr 2021, 08:36
Chambre d'echo, Le Haut-Parleur, April 1973

Last post by Jarno « 15 Apr 2021, 08:30
Posted in Davidoff Library
Replies: 1
by modman » 15 Apr 2021, 07:39 » in Davidoff Library

Full article in hi-res PDF: Chambre d echo HP1401_19-04-1973.pdf

Chambre d echo HP1401_19-04-1973.jpg Chambre d echo HP1401_19-04-1973 2.jpg...

1 Replies

77 Views

Last post by Jarno
15 Apr 2021, 08:30
60W EL34 tube amp, in: Quattrocose, February 1967

Last post by ppluis0 « 15 Apr 2021, 03:45
Posted in Davidoff Library
Replies: 1
by modman » 14 Apr 2021, 09:30 » in Davidoff Library

Complete article in pdf: Quattrocose 1967_02.pdf

Quattrocose 1967_02 04.jpg
Quattrocose 1967_02 03.jpg
Quattrocose 1967_02 bom.jpg

1 Replies

106 Views

Last post by ppluis0
15 Apr 2021, 03:45
Earthquaker Devices Palisades [traced]

Last post by slackshampoo « 14 Apr 2021, 23:15
Posted in Boutique Stompboxes dissected...
Replies: 35
by JorisBlack » 08 Jun 2014, 21:51 » in Boutique Stompboxes dissected...
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Hey all,

I'm looking for a schematic (or even better: a vero layout) of the Earthquaker Devices Palisades overdrive. This thing is a PGS exclusive,...
35 Replies

15698 Views

Last post by slackshampoo
14 Apr 2021, 23:15
Aion fx oceanid compressor

Last post by Intripped « 14 Apr 2021, 21:23
Posted in Pedal Debugging & Troubleshooting Support
Replies: 5
by AndrewGallios » 13 Apr 2021, 09:35 » in Pedal Debugging & Troubleshooting Support

hi

i bought the oceanid pcb from aion fx
i built it and it was fine until i tested the buffered or truebypass section of the small pcb on the...

5 Replies

174 Views

Last post by Intripped
14 Apr 2021, 21:23
BAJA Korg CX3 Rotary Effect [documentation]

Last post by temol « 14 Apr 2021, 20:13
Posted in DIY Projects
Replies: 138
by bajaman » 02 Oct 2007, 10:35 » in DIY Projects
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Hi folks
As promised my version of the KORG CX3 1980's portable organ Rotary Effect.
This is definately not a project for beginners ( not another...
138 Replies

29065 Views

Last post by temol
14 Apr 2021, 20:13
Vibraclone TC electronics info?

Last post by modman « 14 Apr 2021, 19:09
Posted in Modern Stompbox Effects (1975 - ...)
Replies: 1
by cbriere » 14 Apr 2021, 14:44 » in Modern Stompbox Effects (1975 - ...)

Any info on this pedal?
schematics?
based on what IC/circuit?

i like the sound of the pedal. Fits my need for SRV and general Leslie tones.
but i...

1 Replies

91 Views

Last post by modman
14 Apr 2021, 19:09
MXR - Custom Audio Electronics - Boost/Overdrive MC-402 [schematic]

Last post by bmxguitarsbmx « 14 Apr 2021, 18:48
Posted in Modern Stompbox Effects (1975 - ...)
Replies: 45
by okgb » 20 Jul 2010, 14:29 » in Modern Stompbox Effects (1975 - ...)
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I thought this one sounded decent for a chip
i opened the boost / dist combo box but the smt parts
are impossible for me to see and it was a little...
45 Replies

27960 Views

Last post by bmxguitarsbmx
14 Apr 2021, 18:48
BIGGER MUFF [documentation]

Last post by dylan159 « 14 Apr 2021, 18:37
Posted in DIY Projects
Replies: 21
by dylan159 » 08 Apr 2021, 19:20 » in DIY Projects
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A few months ago, I got the idea of reworking the Big Muff in a modern fashion, using op amps, while remaining true to the logic behind the original....
21 Replies

564 Views

Last post by dylan159
14 Apr 2021, 18:37
Sunn Beta Bass preamp schematic

Last post by Tassieviking « 14 Apr 2021, 15:27
Posted in Amplifiers
Replies: 105
by arcaarca » 15 Feb 2015, 18:25 » in Amplifiers
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Hi everyone!
Hope the topic is in the right area.
I'm updating the ugly jpg schematic of this amp, now I've made only a single channel version,...
105 Replies

64629 Views

Last post by Tassieviking
14 Apr 2021, 15:27
1974 Davoli Orbach B3 - 60W hybrid EL500 amp

Last post by modman « 14 Apr 2021, 09:21
Posted in Amplifiers

by modman » 14 Apr 2021, 09:21 » in Amplifiers

Got it dirt cheap, completely underestimating the size of the thing.

I did not find any mention online of Davoli Orbach B3 , but it seems to be...

0 Replies

52 Views

Last post by modman
14 Apr 2021, 09:21
Cornish NB-3 schematic?

Last post by Ichabod_Crane « 14 Apr 2021, 09:16
Posted in Modern Stompbox Effects (1975 - ...)

by Ichabod_Crane » 14 Apr 2021, 09:16 » in Modern Stompbox Effects (1975 - ...)

Hello,
I can't find anything about the Cornish NB-3 boost.

What we know about it? Is it based on BJT, mosfet...? I can see it boosts until 30db (at...

0 Replies

84 Views

Last post by Ichabod_Crane
14 Apr 2021, 09:16
Cornish G2 - Guts, Schematic, Layout (from Tracer's Fund) [traced]

Last post by StratWiz « 14 Apr 2021, 05:51
Posted in Boutique Stompboxes dissected...
Replies: 241
by culturejam » 16 Apr 2010, 17:44 » in Boutique Stompboxes dissected...
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At long last, here are the final results of the Tracer's Fund peek inside the Cornish G2.

Credit goes to Dirk Hendrik for the degoop and circuit...
241 Replies

125645 Views

Last post by StratWiz
14 Apr 2021, 05:51
Blackstar HT-Delay

Last post by Yazoo55 « 13 Apr 2021, 16:40
Posted in Pedal Debugging & Troubleshooting Support
Replies: 1
by Yazoo55 » 03 Apr 2021, 17:14 » in Pedal Debugging & Troubleshooting Support

I bought this pedal “for parts/not working” off eBay. I have disassembled it and it was immediately obvious something nasty had happened on the lower...

1 Replies

88 Views

Last post by Yazoo55
13 Apr 2021, 16:40

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