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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: 66 views: 82,045
Avatar for Philbo King
Philbo King 2 days 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: 1,071 views: 449,434
Avatar for gyraf
gyraf 1 week ago
Avatar for gabriel1

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

replies: 16 views: 39,279
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: 28,217
Avatar for Aniol1349
Aniol1349 10th June 2017
Avatar for grizzlycables

Does anyone know where i can find neutrik connectors cheap wholesale. I've been looking everywhere and the prices are always the...

replies: 7 views: 404
Avatar for ruffrecords
ruffrecords 1 hour ago
Avatar for crzmky

So the tiny fuse in the Phantom power circuit has blown at some point on the 8304 here at the studio I work at. Was wondering if...

replies: 2 views: 110
Avatar for crzmky
crzmky 7 hours ago
Avatar for ArKay99

I bought an AVID Artist Mix a few months back and it's been working great. Today during a session without touching it I hear a...

replies: 17 views: 4,911
Avatar for Legali
Legali 18 hours ago
Avatar for Jack Duelisis

Hi I have a weird problem. My OB8 has a tuning issue. Around E4, it drops about 3,2 semitones. The calibrations are ok the...

Jack Duelisis
replies: 16 views: 1,472
Avatar for Sonate
Sonate 20 hours ago
Avatar for mr. harrison

hi there, me and my tech are about to give up on this tuning problem my P5 has. only voices 4 and 5 of osc b are not tuning...

mr. harrison
replies: 0 views: 167
Avatar for mr. harrison
mr. harrison 22 hours ago
Avatar for Martel80

Hello, I'm looking for the Schematic for the Series 800. If anyne got them, I would really appreciate if they could...

replies: 3 views: 611
Avatar for Martel80
Martel80 1 day ago
Avatar for steefaan

Hi People, i have a little Problem with my Ensoniq ESQ-1. The Filter Cutoff don't open right. The sounds missing...

replies: 3 views: 510
Avatar for Man-Machine
Man-Machine 1 day ago
Avatar for SP2016

I own a brand new Eventide Orville (old stock) and intended to use it again. When it boots it says it is a DSP7000 (!!), and get...

replies: 2 views: 288
Avatar for electricsound
electricsound 1 day ago
Avatar for Princeton.Verb

Lately I've noticed that I have to use quite a lot of gain on my mic pres to get a good level out of my Phanthera V. I decided...

replies: 10 views: 1,036
Avatar for Princeton.Verb
Princeton.Verb 1 day ago
Avatar for noah330

Hi, I am currently working on building myself an 8 channel summing mixer from the NY Dave schematic that has been floating...

replies: 15 views: 551
Avatar for forestcreature
forestcreature 1 day ago
Avatar for Riinehart

Hi all, I'm trying to bring a Crumar Performer back to life. It looks like a previous owner made some sort of modification to...

replies: 2 views: 683
Avatar for analog greg
analog greg 1 day ago
Avatar for DanFor

Does somebody has a copy of any firmware version for Yamaha KX88/76 master keyboard? I just bought KX76 with some issues and...

replies: 3 views: 510
Avatar for DanFor
DanFor 1 day ago
Avatar for RichRadio

hey guys This is my first post here so apologies if I'm not in the right place! I have been playing around with a...

replies: 0 views: 207
Avatar for RichRadio
RichRadio 1 day ago
Avatar for Chagalj

There has been alot of talk about importance of conversion in recording chain, and lots of people want to know which AD/DA chip...

replies: 379 views: 244,985
Avatar for onlyme
onlyme 2 days ago
Avatar for Rockman Rock

Hello, I think I might need a new drive for my e4xt every time I try to save anything it won't work and every time I try to flash...

Rockman Rock
replies: 1 views: 261
Avatar for dfchandler
dfchandler 2 days ago
Avatar for tubeing

Hi all, I was using my Apogee to calibrate another piece of gear and I realized that the balanced line outs are...not very well...

replies: 7 views: 287
Avatar for tubeing
tubeing 2 days ago
Avatar for BradM

I just scored an Otari MX55 in good condition with MRL tape, 8 reels of unopened tape and a HandiMag for $200 this morning. I'm...

replies: 17 views: 5,618
Avatar for feadan
feadan 2 days ago
Avatar for Pinebox Studio Services

I have a PSU for a Gefell UN-920 that has a patter selector switch which has mechanically failed. I contacted Gefell and they...

Pinebox Studio Services
replies: 0 views: 232
Avatar for Pinebox Studio Services
Pinebox Studio Services 2 days ago
Avatar for Sadomiso

Hi, Any recommendations for old gear repair/servicing (Urei 1176, Dynachord delay, Api EQs....)? Not John Klett whom I already...

replies: 4 views: 376
Avatar for RKelly
RKelly 2 days ago
Avatar for sameal

I've seen this done before, but im curious if theres an exact science, has to be, about placement of the preview head on an...

replies: 30 views: 899
Avatar for Ingenia
Ingenia 2 days ago
Avatar for belzrebuth

I got a nova modded SH-101 having the following issue: The LFO is always routed to the filter except if I plug a jack cable on...

replies: 1 views: 300
Avatar for belzrebuth
belzrebuth 2 days ago
Avatar for hemi666

Hi all, I have an Akai VX-90 which has been acting a bit funny, not tuning, voices not behaving as expected. I have a couple of...

replies: 3 views: 474
Avatar for hemi666
hemi666 2 days ago
Avatar for ejt

Howdy all. I use a Digitech s100 for effects on my bass rig, with a Digitech FS-300 midi pedal to control it. The FS-300 has...

replies: 1 views: 309
Avatar for ejt
ejt 3 days ago
Avatar for Gimlay

Hey Sluts Im recapping a soundcraft delta for a summing mixer and i had a few questions. Im assuming on using Panasonic FM 220...

replies: 8 views: 2,721
Avatar for hellofishy
hellofishy 3 days ago
Avatar for Praxisaxis

Hey All, My (usually) 100% reliable Moog Voyager has been intermittently shutting down after powering up. It's not a clean...

replies: 16 views: 732
Avatar for WorldPowerLabs
WorldPowerLabs 3 days ago
Avatar for PatPend

Anyone know where to get Petrick panel buttons used in late-model OB-8's? These have the "diagonal" contact...

replies: 3 views: 474
Avatar for PatPend
PatPend 3 days ago
Avatar for David Kulka

A friend tells me that people are starting to use standard CAT-5 data cable for balanced analog and digital audio wiring, with...

David Kulka
replies: 85 views: 20,410
Avatar for ponzi
ponzi 4 days ago
Avatar for danmaxson

Hi, I’m new to recording analog so my terminology might be a little off. The issue I am having is that when I record a second...

replies: 4 views: 288
Avatar for danmaxson
danmaxson 4 days ago
Avatar for erict35

Whatever the I/O module I try to send to group 7 or 8 I had no signal at the ouput (master). I inject a tone generator on a...

replies: 6 views: 585
Avatar for Vitalis
Vitalis 4 days ago
Avatar for oldgearguy

OK, so I'm doing some basic cleanup and calibration on some old gear (Oberheim SEMs, circa 1977). Basic sound is great, however...

replies: 2 views: 295
Avatar for oldgearguy
oldgearguy 4 days ago
Avatar for Boonj

Hi Slutz. This might be a dead end but I think it's worth asking. I've been wondering for a few years now about how to control...

replies: 8 views: 411
Avatar for wavenurse
wavenurse 4 days ago
Avatar for willi1203

Hi My Presonus firestudio project show me a problem. Loud noise on main right out. No matter i turn down or up the volume, the...

replies: 1 views: 252
Avatar for Nyquist
Nyquist 4 days ago
Avatar for wolf1419

Hello, I'm a DIY guy that gets things fixed if I have some guidance. A used Yamaha AW1600 Digital Multitrack that I own , has a...

replies: 6 views: 404
Avatar for wolf1419
wolf1419 5 days ago
Avatar for blueflag

I have 4 7602 pre's that have been in storage. 3 out of 4 now have bad gain switches and one eq switch as well. Are these...

replies: 4 views: 501
Avatar for Radardoug
Radardoug 5 days ago
Avatar for hanselblat

Hi ladies and gents (I assume mostly gents :-})! I have an utter newbie question; if you are so kind as to answer my question,...

replies: 7 views: 328
Avatar for hanselblat
hanselblat 5 days ago
Avatar for Porkbellies

Hi....can anyone help? In my 7602 a wire has become disconnected and I cant seem to see where it goes back although I think it...

replies: 0 views: 275
Avatar for Porkbellies
Porkbellies 5 days ago
Avatar for Emanuel23

Does anyone know the part type / model number of the indented rotary encoder used in the Bose T1 mixer for selecting the various...

replies: 0 views: 300
Avatar for Emanuel23
Emanuel23 5 days ago
Avatar for filmcomposer

Hello Everyone, Am looking to replace rusty 1/4 inch jack nuts and washers from about 40 x female jack sockets on the front of a...

replies: 5 views: 455
Avatar for Richard Crowley
Richard Crowley 5 days ago
Avatar for thermal

I've just acquired an original midiverb, which sounds lovely. The PSU however does not, it hums loudly and is very annoying. I...

replies: 0 views: 269
Avatar for thermal
thermal 6 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: 31 views: 13,438
Avatar for Avongugg
Avongugg 6 days ago
Avatar for Mr XY

does anyone know of a US vendor that sells a suitable 2u rack mount chassis for a class d amp build (anaview) that can pre drill...

replies: 0 views: 284
Avatar for Mr XY
Mr XY 6 days ago
Avatar for TMOQuantity

Sorry if this is the wrong forum for this question, I wasn't sure where to put it. I picked up a couple of NOS BASF LGR-50...

replies: 6 views: 375
Avatar for TMOQuantity
TMOQuantity 6 days ago
Avatar for Spano

So I decided to torture myself and check out some SSL studio equipment, (ho LEE **** it's expensive but it's awesome. I would...

replies: 6 views: 507
Avatar for ruffrecords
ruffrecords 6 days ago
Avatar for gradivus

Curious what you seasoned guys do to safely discharge capacitors and if you use one method or several depending on the size and...

replies: 70 views: 1,516
Avatar for Richard Crowley
Richard Crowley 6 days ago
Avatar for tasoshobby

Greetings people! Im posting about a pair of ESI Near05 classic, which need a new tweeter speaker as i have done the one! I...

replies: 0 views: 272
Avatar for tasoshobby
tasoshobby 1 week ago
Avatar for Hollowman9

I have begun making modifications to an old Univox Maxi-Korg synthesizer. When I bought the unit it was partially functioning...

replies: 31 views: 1,149
Avatar for Hollowman9
Hollowman9 1 week ago
Avatar for piscine

Hi all, FWIW, I am proudly announcing the availability of the complete Tascam ATR-60-16's Operation and Maintenance Manual in...

replies: 6 views: 1,484
Avatar for EvilRoy
EvilRoy 1 week ago
Avatar for drewharris

I am building a TRS to TRS passive stereo to mono summing cable based on the oft quoted "Why Not Wye" note from Rane (...

replies: 1 views: 416
Avatar for Jay Rose
Jay Rose 1 week ago
Avatar for ChristianN

Perhaps one would wonder why, if it already has somevibration rejection built it in... But had anyone done it? Even if they...

replies: 5 views: 436
Avatar for bace
bace 1 week ago
Avatar for owai

Hello, I'm trying to fix a Roland HP 2900g, but i can't find a schematic or a service manual. A small transistor...

replies: 4 views: 901
Avatar for murali1311
murali1311 1 week ago


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