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

Tim Farrant
replies: 1,117 views: 497,366
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chipss36 1 week ago
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: 98,740
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hebjam 30th August 2019
Avatar for gabriel1

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

replies: 16 views: 47,167
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: 36,144
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Aniol1349 10th June 2017
Avatar for okkokkokko

Welcome to exactly what the title of this thread suggests! And let me go straight to the disclaimer for all you millennial-,...

replies: 63 views: 4,646
Avatar for 2Low
2Low 16 minutes ago
Avatar for dannykorrson

I recently got gifted a Juno 6 which shows some funny behaviour after warming up for 5 minutes. one envelope Generator starts to...

replies: 0 views: 52
Avatar for dannykorrson
dannykorrson 3 hours ago
Avatar for Ted Krotkiewski

Hi friends. I have a beautiful Raindirk Mini Mixer from 1973. This is a smaller broadcast version of the more famous "Series...

Ted Krotkiewski
replies: 7 views: 287
Avatar for Ted Krotkiewski
Ted Krotkiewski 5 hours ago
Avatar for Bitsmith

anyone know what an 'error 30' is ?? Basically i'm getting all front panel lights etc but then the unit throws a '30' error code...

replies: 7 views: 248
Avatar for gyraf
gyraf 10 hours ago
Avatar for Hottlungs

I just picked up a mackie control universal controller with one mackie control xt expansion controller. Each are having issues...

replies: 8 views: 1,550
Avatar for Rexesq
Rexesq 12 hours ago
Avatar for locojohn

Dear all, I am trying to find schematics of the soviet analog monosynth Алиса 1387 (Alisa 1387). I was able to locate...

replies: 0 views: 137
Avatar for locojohn
locojohn 19 hours ago
Avatar for castudioman

Hey all, originally posted this in the So Much Gear, So Little Time sub-forum and have had no luck. Basically, have an...

replies: 1 views: 508
Avatar for fredmant
fredmant 1 day ago
Avatar for dlmorley

I'm thinking of setting my A77 up as a tape delay but it doesn't have varispeed to adjust the timing. Is there a simple mod I can...

replies: 12 views: 6,444
Avatar for Jay Rose
Jay Rose 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: 442 views: 297,767
Avatar for byz
byz 1 day ago
Avatar for nlog79

Hi everybody! I have a TL Audio dual pentode preamplifier (I think is the PA1 first version, without the meters), that has a...

replies: 0 views: 159
Avatar for nlog79
nlog79 1 day ago
Avatar for shahstlz

Hello there, I try to replace the 1178's pots with stepped attenuators. The 1k input pots are wired with the screen to the...

replies: 13 views: 332
Avatar for shahstlz
shahstlz 2 days ago
Avatar for sameal

I just grabbed this white eq without a power supply. The pin out shows chassis and +/-18vdc, fair enough. But then there are two...

replies: 3 views: 172
Avatar for sameal
sameal 2 days ago
Avatar for drzygote

Hi, I'm looking for someone who has knowledge of studer mixers in London, preferably 961/962. Thanks A

replies: 0 views: 176
Avatar for drzygote
drzygote 2 days ago
Avatar for gilligan8

I know that seems like an odd question, but I have an XR12 and I'd like to avoid using batteries to power some microphones that I...

replies: 5 views: 265
Avatar for nosebleedaudio
nosebleedaudio 2 days ago
Avatar for Mr. Brokenamp

Anyone out there have a schematic for this little mixer they could share with me?

Mr. Brokenamp
replies: 0 views: 184
Avatar for Mr. Brokenamp
Mr. Brokenamp 2 days ago
Avatar for nucelar

Hi all, Since TL Audio are out of business I don't know who to ask. I would need a service manual /schematic for a TL Audio...

replies: 12 views: 6,694
Avatar for stella645
stella645 2 days ago
Avatar for David Kulka

Has anyone come across any kind of 2-channel shielded audio cable with a white jacket? I want some for a long cable run that...

David Kulka
replies: 16 views: 503
Avatar for samwinston123
samwinston123 2 days ago
Avatar for suburbandit

Hi All, I'm looking to build an attenuation pad for a DIY microphone splitter (something not unlike the Radial JS3. I...

replies: 1 views: 185
Avatar for Jay Rose
Jay Rose 2 days ago
Avatar for Beucepholis

Hi All, For reasons I won't go into, I need to allow instrument cables to be left plugged into guitar amplifiers without causing...

replies: 9 views: 261
Avatar for David Kulka
David Kulka 3 days ago
Avatar for Keepintime

Hello. One of the channels in my 3124 is no longer putting out signal. I’ve been running a Yamaha Subkick through it with the...

replies: 5 views: 397
Avatar for Keepintime
Keepintime 3 days ago
Avatar for Doc B.

I am trying to find a source for the 11 pin female tray connector for a Langevin 5116B module. The stock connector appears to be...

Doc B.
replies: 3 views: 516
Avatar for David Kulka
David Kulka 3 days ago
Avatar for ST.Studio

Hey slutz, I recently overhauled a PM-1000 by recapping and installing transformer direct outputs on each channel. The direct...

replies: 1 views: 187
Avatar for enginefire
enginefire 4 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: 4 views: 999
Avatar for rockmanrock
rockmanrock 4 days ago
Avatar for auddoc

Does anyone out there have the service manual or schematics for the TC Electronics 2290/ w sampling option? thanks,

replies: 11 views: 6,644
Avatar for Bitsmith
Bitsmith 4 days ago
Avatar for coldvodka

hi, i'm trying to make a line attenuator to use between my monitor controller and speaker amp. so it would go like this;...

replies: 16 views: 417
Avatar for coldvodka
coldvodka 4 days ago
Avatar for optofonik

One of these is "quieter" than the other but I can't tell which. How does impedance and output level of one spec...

replies: 3 views: 342
Avatar for Jay Rose
Jay Rose 4 days ago
Avatar for aaronmcphee

Hi all you DIY peeps. I am embarking on my first DIY build of the GSSL compressor after reading many threads on here &...

replies: 14 views: 1,550
Avatar for gyraf
gyraf 4 days ago
Avatar for Kev At Soundbite

The peak meter in samplitude has stopped displaying the digits at the far end of the meter. The meter still shows the output, but...

Kev At Soundbite
replies: 0 views: 193
Avatar for Kev At Soundbite
Kev At Soundbite 5 days ago
Avatar for Roman English

Hey there wise folks, need your advice. We have burl b2 ADC, which has a problem. When we go into unit, left channel is 2.5...

Roman English
replies: 9 views: 1,555
Avatar for willyk
willyk 5 days ago
Avatar for marcus_k

Hi guys - I just moved to a new place (i'm in CA, USA) and all of my guitars and amps are now picking up quite a nasty bit of...

replies: 16 views: 364
Avatar for floomby
floomby 5 days ago
Avatar for enginefire

So... 2 years ago I started refurbishing this board. Got it done too, except for a few things. I had Most but not all the nuts...

replies: 1 views: 329
Avatar for enginefire
enginefire 5 days ago
Avatar for Barry M

Hey all, looking for advice on rigging up a remote talkback button for an API 1608ii console. I see the console has a 5-pin XLR...

Barry M
replies: 0 views: 192
Avatar for Barry M
Barry M 6 days 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: 8 views: 1,989
Avatar for CharlesFr
CharlesFr 6 days ago
Avatar for whinylittlerunt

Last week I took apart my EP-3 motor to give it a good cleaning and then re-greased the shaft, etc. Put it all back together. ...

replies: 7 views: 1,321
Avatar for Lunatic studio
Lunatic studio 6 days ago
Avatar for Brian M. Boykin

I have a 77 MCI JH16 I’ve been restoring and noticed this mod on 8 of the 24 control cards. All the tants have been replaced...

Brian M. Boykin
replies: 4 views: 346
Avatar for Brian M. Boykin
Brian M. Boykin 6 days ago
Avatar for jemaudio

Hey Guys Im wondering if anyone has any diagrams on how D-Sub wiring should be done, have a client that is asking about it at...

replies: 8 views: 4,948
Avatar for chrisdude
chrisdude 6 days ago
Avatar for rudie152

I am using the line amps of the ampex 354 to tracks synths and drum machines, but 1 of the channels does not seem to work...

replies: 4 views: 1,795
Avatar for Jay Rose
Jay Rose 6 days ago
Avatar for dwpthe3rd

Deleted due to lack of response

replies: 6 views: 407
Avatar for dwpthe3rd
dwpthe3rd 1 week ago
Avatar for althemusicwizard

Hi, A couple of months back I bought a Soundcraft Spirit Auto 24 which as you probably know is a rather rare beast and in need...

replies: 0 views: 192
Avatar for althemusicwizard
althemusicwizard 1 week ago
Avatar for laperlestudio

Hi, I have a problem with my eventide H949, it keeps feedbacking on itself, I had sent it to beamish, but he is not reply to my...

replies: 2 views: 412
Avatar for laperlestudio
laperlestudio 1 week ago
Avatar for Gab_Azz

I am not sure that I am posting it the right section of the forum. I have a Focusrite 18i20 and it was working last time I...

replies: 8 views: 2,361
Avatar for Ryanmartindrums
Ryanmartindrums 1 week ago
Avatar for wyatt.fisher1

Hello Geekslutz, I recently got a Sunn 2216 for free, and I dig it for dirty/vibey drums. I would like to be able to...

replies: 1 views: 352
Avatar for wrgkmc
wrgkmc 1 week ago
Avatar for starseed

Hi. I'm learning about servicing tube amps and have changed the elytic caps in the V73's we use as headphone amps. They...

replies: 2 views: 3,251
Avatar for dcvx
dcvx 1 week ago
Avatar for Neutrino

Hi, during recording I noticed little click noises in the signal path that sound like small electric discharges (sound file...

replies: 3 views: 569
Avatar for pkuchar
pkuchar 1 week ago
Avatar for Shak

Hi Folks does anyone have a schematic for a Furman LC3. I would like to add the balance circuit and not sure what the deal is...

replies: 8 views: 1,183
Avatar for Shak
Shak 1 week ago
Avatar for Mr Funk

My 1178 seems broken but anyone any idea if this sounds serious? The meters (when not in GR mode) are all the way over to the...

Mr Funk
replies: 24 views: 690
Avatar for Mr Funk
Mr Funk 1 week ago
Avatar for gearstudent

Hello, The Neve BCM10 is a famous submixer. I believe people would sometimes mix some tracks into the Neve, and then route...

replies: 5 views: 442
Avatar for deedeeyeah
deedeeyeah 1 week ago
Avatar for Nt192

Hi there. I was cleaning out storage today and came across our old Tascam 414MKII. I thought I’d clean it off and mess around...

replies: 0 views: 280
Avatar for Nt192
Nt192 1 week ago
Avatar for AldenW

Just bought a Crown D-75a off ebay to power my Avantones, and it has a fairly loud hum coming out of it. Not through the...

replies: 2 views: 350
Avatar for AldenW
AldenW 1 week ago
Avatar for Kaaawaian

In the early 90's I bought a pair of Summit TLA-100A's from Mike at Summit Audio. He ran it very personally, always answered the...

replies: 2 views: 1,008
MIKEHARRIS 1 week ago


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