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Avatar for MicroSonic

I have been collecting schematics for 30 years and 5 years ago I started make them available at my site but...

replies: 72 views: 94,795
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hebjam 2 weeks ago
Avatar for Tim Farrant



OK, something to spice up Geekslutz = here is where we post images of the INSIDE of audio equipment. Disclaimer; any photo...

Tim Farrant
replies: 1,106 views: 489,190
Avatar for chipss36
chipss36 2 weeks ago
Avatar for gabriel1

DSP Innovations has recently launched a FREE data sheet search site. The site, - Search Electronic Components ,...

replies: 16 views: 45,384
Avatar for ponzi
ponzi 27th October 2017
Avatar for Tim Farrant

Anyone who offers technical services should get themselves listed into the new member directory here... Gearslutz Directory:...

Tim Farrant
replies: 8 views: 34,184
Avatar for Aniol1349
Aniol1349 10th June 2017
Avatar for suckboi

I have a zvex vertical fuzz factory and even when it was within its casing, it would not turn on with the 9V battery powering it....

replies: 0 views: 1
Avatar for suckboi
suckboi 50 minutes ago
Avatar for Qumok

Hello. So I decided to test out my chameleon 7720 and gather some info. I got some interesting results, especially against its...

replies: 3 views: 229
Avatar for Qumok
Qumok 1 hour ago
Avatar for shortyboyboy

Hi Gang, I have some problems with my Trident 65 I was hoping you could help me with. I believe the problems can be fixed by...

replies: 13 views: 453
Avatar for Seamus TM
Seamus TM 1 hour ago
Avatar for Brian M. Boykin

I’ve read up on these and they seem more favorable because the cabinets are sized better for the drivers than say the 4411’s...

Brian M. Boykin
replies: 10 views: 850
Avatar for Jim Williams
Jim Williams 2 hours ago
Avatar for Maschu

Hey guys, I'm having trouble with ma Wa73 Neve clone. I already send it back, but it came back to me still having the same...

replies: 20 views: 756
Avatar for Maschu
Maschu 14 hours ago
Avatar for sleepwalk

Hi, I have a Solo 610 that is in need of diagnostics/repair. It will work fine for an hour or two, and then the gain just becomes...

replies: 5 views: 484
Avatar for sleepwalk
sleepwalk 17 hours ago
Avatar for rocketship69

Hi. I am adding a Zvex Fuzz Factory to my guitar. I have the cavity drawn out on the guitar that easily fits the board from...

replies: 6 views: 355
Avatar for Jim Williams
Jim Williams 22 hours ago
Avatar for slutter

Hi, I'm troubleshooting a Yamaha P-115 which has numerous non-working keys. I've isolated it down to the contacts on the PC...

replies: 3 views: 388
Avatar for slutter
slutter 1 day ago
Avatar for Trojanmantony

I have 10 years experience in soldering(thru hole and smt), I can repair and troubleshoot stuff relatively well, and I am an...

replies: 5 views: 651
Avatar for Trojanmantony
Trojanmantony 1 day ago
Avatar for Hexov

Hello everyone! I'm new to this forum and i would like to thank everyone in advance who will help me with this problem. I've...

replies: 2 views: 368
Avatar for Hexov
Hexov 1 day ago
Avatar for iaw1978

I've been working on some older units as I've found them cheap to come by (Boss Dr-55 and Soundmaster Sr-88) and I have some...

replies: 6 views: 475
Avatar for Cpl. Punishment
Cpl. Punishment 1 day ago
Avatar for E Orjatsalo

Anyone have these? The ones in manual are too vague to really find out what to do to repair a channel. I contacted local...

E Orjatsalo
replies: 15 views: 14,164
Avatar for althemusicwizard
althemusicwizard 1 day ago
Avatar for jofo70

I used their contact page, but PMI audio got back and said that they didn't get many schematics when they acquired Joe Meek. ...

replies: 4 views: 634
Avatar for Jim Williams
Jim Williams 2 days ago
Avatar for goom

I'm not sure if the company was handed to another entity to keep going after the owner passed away. confoosed

replies: 0 views: 451
Avatar for goom
goom 2 days ago
Avatar for Ez Presso

Hello, guys. Does anyone out there have the service manual or schematics for Tascam FW-1804 or Tascam FW-1082? I am trying to...

Ez Presso
replies: 1 views: 672
Avatar for pdeber
pdeber 2 days ago
Avatar for iudex

I am trying to fix my old Marshall Valvestate 8010, mostly because I wanted learn soldering and some standard troubleshooting....

replies: 0 views: 439
Avatar for iudex
iudex 2 days ago
Avatar for darkgoob

(I don't know if this is the best forum for this, please let me know if I should move it to a different sub. This pertains...

replies: 5 views: 2,260
Avatar for Radardoug
Radardoug 2 days ago
Avatar for recordinghopkins

Tonight the 17v +/- lights went out on my power supply. I have yet to remove it from the rack, but I was curious to see if anyone...

replies: 116 views: 23,232
Avatar for Jim Williams
Jim Williams 3 days ago
Avatar for brijem

I know there are endless threads about the ART VLA Pro II and the various mods possible, but that's part of the problem - too...

replies: 0 views: 425
Avatar for brijem
brijem 3 days ago
Avatar for midnightmarauder

I'm having this strange and annoying problem with my beloved Waldorf Q keyboard. And I would be greatful if somebody might be...

replies: 2 views: 876
Avatar for midnightmarauder
midnightmarauder 3 days ago
Avatar for nicholasj

My Soundcraft FX16ii has a channel locked in solo/pfl mode. Unhooked everything, powered down, pressed solo button hard, etc.....

replies: 0 views: 452
Avatar for nicholasj
nicholasj 3 days ago
Avatar for mitchholtby

Hi! I'm developing a few products at the moment, most notably an affordable stereo vari-mu. I'm a bit lost on where to reliably...

replies: 7 views: 671
Avatar for mrfantastic
mrfantastic 4 days ago
Avatar for plutoniq

Hey, I’ve been restoring an old Schaller Reverb unit that has been a bit neglected (on loan to my buddy for 20yrs), the main...

replies: 5 views: 1,004
Avatar for tINY
tINY 4 days ago
Avatar for airloom

does anybody have the pinouts for an akg c422?

replies: 2 views: 522
Avatar for sparky52
sparky52 4 days ago
Avatar for Pilbromatic

Hey guys, Normally I'd post this sort of thing on the DIY Audio forums, but GS is where the legends lurk cooge I've just...

replies: 0 views: 470
Avatar for Pilbromatic
Pilbromatic 4 days ago
Avatar for DanielJC

I hope I'm posting in the right place here. I've searched around and found some similar questions, but not the exact issue I'm...

replies: 0 views: 492
Avatar for DanielJC
DanielJC 4 days ago
Avatar for sameal

Hi. I got a stack of these from a generous trash can awhile back. Someone had robbed the transfo's. So i located a few...

replies: 1 views: 576
Avatar for S_mask
S_mask 4 days ago
Avatar for Sonata

Dear Gearslutz members, I'm having a very weird grounding issue in my studio. I tried contacting various support teams already,...

replies: 7 views: 1,253
Avatar for Sonata
Sonata 5 days ago
Avatar for anonyfous

Hello, we just got the D#R Cinemix to our studio, it was not in the best shape it was lying in a shed for about 10 years....

replies: 1 views: 622
Avatar for ZioGuido
ZioGuido 5 days ago
Avatar for Franco the Manco

Hi, I have a 4 channel dynamic compressor (Behringer Multicom MDX 2400) which I use as a limiter, I am looking to 'slice' up in...

Franco the Manco
replies: 2 views: 513
Avatar for Franco the Manco
Franco the Manco 5 days ago
Avatar for yeloocproducer

Anyone have a Lexicon LP-2 output filter (small metal container)??... lexicon part #023-03196 ... it's the lowpass filter for the...

replies: 29 views: 4,275
Avatar for ComodoComplex
ComodoComplex 5 days ago
Avatar for WiredSound

I have a buzz on the output of the compressor side that I can almost elminate by setting the drive and gain to a specific level....

replies: 1 views: 1,194
Avatar for Oz999
Oz999 5 days ago
Avatar for mechr0n01

I need the input/help of professionals here. I ordered a PSU for my Tascam M3500 from this eBay seller...

replies: 11 views: 1,495
Avatar for AnalogGreg
AnalogGreg 5 days ago
Avatar for Slutty Professor

Would anyone be willing to spill the beans on what model is used to replace the old failing lcd-displays in the Akai S1000...

Slutty Professor
replies: 5 views: 966
Avatar for Slutty Professor
Slutty Professor 5 days ago
Avatar for JamieOxford

Has anyone here built a 610 preamp before? Or is there a company in the deepest darkest corner of the internet making them? I...

replies: 33 views: 16,694
Avatar for dawsonaudio
dawsonaudio 6 days ago
Avatar for ULTRA82

Hello planet inhabitants gearslutz. Help with determining the board for which device it is. I will be grateful.;)

replies: 2 views: 837
Avatar for audiospecific
audiospecific 6 days ago
Avatar for Steamy Williams

I've had a bantam patchbay custom made for me by the manufacturer that made my line level mixer. I specified most of the patchbay...

Steamy Williams
replies: 20 views: 4,941
Avatar for brendandwyer
brendandwyer 6 days ago
Avatar for MYN

Can someone describe the sonic differences between the Jensen 918 (and it’s various DIY clones) and the Hardy 990? I...

replies: 5 views: 846
Avatar for MYN
MYN 6 days ago
Avatar for Jazzy

Hi all, I have an old Frazer Wyatt P250-EHD powered speaker that has a: 1. TS Mic Input 2. TS Line Input 3. TS Line out I'd...

replies: 11 views: 993
Avatar for wrgkmc
wrgkmc 1 week ago
Avatar for iaw1978

Can someone help me ID this part?

replies: 5 views: 789
Avatar for wrgkmc
wrgkmc 1 week ago
Avatar for vehcks

Hello Gearslutz, I am a long-time lurker and this is my first post so forgive me if I don't entirely adhere to conventions. I...

replies: 9 views: 2,049
Avatar for Mikhael
Mikhael 1 week ago
Avatar for MainTime

Hello, Silverstone wrote that it's possible to make a nice Di Box, which is used on Nashville studio, based on WE 111C ...

replies: 102 views: 13,999
Avatar for denork
denork 1 week ago
Avatar for Yamin

Hi I recently got a Beyerdynamic DT100 headphone for a present . I noticed that it doesn't sound as "loud" or...

replies: 17 views: 1,265
Avatar for ruffrecords
ruffrecords 1 week ago
Avatar for Matmonster58

What is the cheapest tube amp I can build. What is an easy schematic that is is easy to source the parts for myself and is...

replies: 3 views: 794
Avatar for ruffrecords
ruffrecords 1 week ago
Avatar for Synthosphere

Hi folks, First post on this forum but have been reading and enjoying it for a while now. Great stuff! Ok so here's my...

replies: 58 views: 20,240
Avatar for jetam
jetam 1 week ago
Avatar for ian1101

I just bought 2 Soundcraft Delta mixers, a 24 channel and an 8 Channel. The 24 channel did not come with a power supply, and the...

replies: 16 views: 11,281
Avatar for audiospecific
audiospecific 1 week ago
Avatar for waldie wave

I am wanting to get a bunch of 1073 type pres made for recording drums, electric guitars, acoustic guitars and vocals. Just...

waldie wave
replies: 7 views: 1,221
Avatar for audiospecific
audiospecific 1 week ago
Avatar for SonicFlow

I have recently purchased a yamaha DX21 from ebay which was described as fully working. The seller did however make it clear that...

replies: 5 views: 1,686
Avatar for QuestingElf
QuestingElf 1 week ago
Avatar for CarParkCharlie

Hi guys! I've been looking for answers all over the interwebs but it seems I am alone with this issue. I have an NTK that powers...

replies: 1 views: 1,232
Avatar for Radiance
Radiance 1 week ago
Avatar for Mitch Connor

Hello fellow slutz. If any of you own a Mackie MCU Pro then you certainly know how horrible the blue and white backlit LCD...

Mitch Connor
replies: 3 views: 701
Avatar for Mitch Connor
Mitch Connor 1 week ago


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