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

MicroSonic
replies: 82 views: 115,082
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MicroSonic 2 weeks ago
Avatar for Tim Farrant

The GUTZ

139


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

Tim Farrant
replies: 1,141 views: 538,166
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msbettyhunt 16th June 2020
Avatar for gabriel1

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

gabriel1
replies: 19 views: 53,756
Avatar for msbettyhunt
msbettyhunt 27th March 2020
Avatar for Tim Farrant

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

Tim Farrant
replies: 9 views: 42,848
Avatar for msbettyhunt
msbettyhunt 24th March 2020
Avatar for DavidLMills

Hi there, I had a quick question about VU Meters and wiring. I know there have been a few posts about this but couldn't find a...

DavidLMills
replies: 20 views: 4,391
Avatar for Matt Syson
Matt Syson 1 hour ago
Avatar for daveybasso

good lord ive never heard such a close, intimate vocal in my LIFE?....how close did they have the mic to her? was it down her...

daveybasso
replies: 7 views: 261
Avatar for cyjanopan
cyjanopan 1 hour ago
Avatar for craigmorris74

I have an unbalanced piece of hi-fi gear that I would like to use in the studio. Could I add transformer inputs and outputs to...

craigmorris74
replies: 28 views: 635
Avatar for nosebleedaudio
nosebleedaudio 1 hour 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...

Chagalj
replies: 491 views: 332,667
Avatar for ardis
ardis 9 hours ago
Avatar for shadebug

Preamble Hey, first time posting so let me know if I'm in the wrong place but I recently bought a D310 off reverb. It was the...

shadebug
replies: 2 views: 108
Avatar for Dr. Jule
Dr. Jule 14 hours ago
Avatar for thomasdf

Hi all I'm a long time reader of this forum, and a newly registered member, from Paris, France. I bought a Yamaha SPX90...

thomasdf
replies: 177 views: 21,954
Avatar for ghostwriter
ghostwriter 14 hours ago
Avatar for emm853

Hi Everyone, i'm having big issues with my rocktron Patchmate (the Bob Bradshaw version). The machine starts up and the...

emm853
replies: 42 views: 1,084
Avatar for emm853
emm853 15 hours ago
Avatar for mortimersnerdy

So, I have an original power supply that has a non original input connector, need the original connector to match up with new...

mortimersnerdy
replies: 6 views: 121
Avatar for jaddie
jaddie 15 hours ago
Avatar for soundbeing

Hey gang, my tech has localized the issue I have with one channel of my AKG BX20e. It seems to be a common issue in these units....

soundbeing
replies: 0 views: 72
Avatar for soundbeing
soundbeing 16 hours ago
Avatar for stevo991

I would like to start a thread for all of you slutz out there that has any info or schematics on AMEKS BIG, Recall, and 501 by...

stevo991
replies: 38 views: 5,013
Avatar for pinkpanter
pinkpanter 18 hours ago
Avatar for plazareff

Hello All, After many exchanges with SSL support and before making a warranty claim, I thought it might be useful to share my...

plazareff
replies: 3 views: 928
Avatar for purplenoise
purplenoise 18 hours ago
Avatar for BartR

I'm working on a project and as many, as example I got the Schoeps CMC3-5 schematics to work with. I'm wondering what are the...

BartR
replies: 2 views: 130
Avatar for kirkus
kirkus 18 hours ago
Avatar for gerard68

My first post here, so I don't know if this is the right place to ask, but here it is. As the title says; I got one channel with...

gerard68
replies: 4 views: 3,474
Avatar for copperline
copperline 1 day ago
Avatar for diamondjim

I have a vintage Otari MX-7800 8 track 1 inch tape machine that I bought 10 years ago, used very little, then moved and just...

diamondjim
replies: 0 views: 81
Avatar for diamondjim
diamondjim 1 day ago
Avatar for hotrod79

Hi all, I have a question about a schematic symbol and I am hoping someone could enlighten me about it. The drawing shows digital...

hotrod79
replies: 3 views: 136
Avatar for Rick Dalton
Rick Dalton 1 day ago
Avatar for Ianneve

I just did my first 2. I'm no longer a Calibrating Virgin. I'm running Samplitude and I'm running a sine wav out at -16 and I...

Ianneve
replies: 28 views: 3,689
Avatar for Bob Olhsson
Bob Olhsson 1 day ago
Avatar for WFTETC1

Hello, can someone tell me how's this EQ called and which brand(unit direct under the C1), would be very nice to know, you guys...

WFTETC1
replies: 2 views: 540
Avatar for Soundclass
Soundclass 1 day ago
Avatar for Saudade

Hi there, I have had this mic for maybe 20 yrs. Recently it started having this noise (click links to hear). There is still...

Saudade
replies: 3 views: 155
Avatar for gyraf
gyraf 1 day ago
Avatar for mungu

Hi all - I am doing the final setup steps of my Sound Skulptor CP4500 and I am a bit stuck. Full schematic is here:...

mungu
replies: 1 views: 120
Avatar for mungu
mungu 2 days ago
Avatar for polaris26

Hello all - I just acquired a Roland SDE-3000 and hoping someone here can help me with a mystery before I start to try to...

polaris26
replies: 1 views: 112
Avatar for polaris26
polaris26 2 days ago
Avatar for dreadbizniz

If you require schematics / user manual for the EMT 258 noise filters i am currently racking a pair and have this data document...

dreadbizniz
replies: 5 views: 2,235
Avatar for LuizCamargo
LuizCamargo 3 days ago
Avatar for hotrod79

Hi all, this is my first thread and I am hoping to find a few who venture as far as I do when it comes to taking care of my gear....

hotrod79
replies: 6 views: 362
Avatar for hotrod79
hotrod79 3 days ago
Avatar for hedgehognrown

is a pot is a pot is a pot? for whatever reason, 250k/250k concentric pots seem to be thin on the ground and the only ones...

hedgehognrown
replies: 6 views: 216
Avatar for Cabirio
Cabirio 3 days ago
Avatar for tcross

Short rant: Bought the Presonus Eris 8 about 5 years ago and several months ago one lost power. Sent to Presonus for repair ($75...

tcross
replies: 0 views: 124
Avatar for tcross
tcross 3 days ago
Avatar for pencilextremist

I was wondering if it's possible to design/make my own dual VU/PPM meter? I know we are living in 2020 but there's just something...

pencilextremist
replies: 27 views: 496
Avatar for jaddie
jaddie 3 days ago
Avatar for WhiskyCast

Trying to help a friend of mine resolve a problem with his Senal UB-440 USB condenser mic (since I recommended he buy it for his...

WhiskyCast
replies: 3 views: 126
Avatar for Thomas W. Bethe
Thomas W. Bethe 3 days ago
Avatar for Chadr

Hello, I need some advice regarding a couple issues I’m having with my console. Console: Soundcraft Sapphyre 36...

Chadr
replies: 0 views: 136
Avatar for Chadr
Chadr 3 days ago
Avatar for enginefire

Hey I’m tweaking out a urei562. I’m looking at the output section and want to add a pot to control the output drive. Any...

enginefire
replies: 5 views: 387
Avatar for Cabirio
Cabirio 4 days ago
Avatar for weenhillage

A yellow IC in the underside of the User interface Board. Some pins are removed/not connected. Is this somebody’s half assed...

weenhillage
replies: 4 views: 201
Avatar for weenhillage
weenhillage 4 days ago
Avatar for weenhillage

There is some noise when I press the after touch. I have temporarily remedied it by unscrewing the front panel. I don’t see...

weenhillage
replies: 0 views: 107
Avatar for weenhillage
weenhillage 4 days ago
Avatar for woods

Is this typically what a unit this price looks like under the hood?

woods
replies: 55 views: 10,564
Avatar for ginetto61
ginetto61 4 days ago
Avatar for Uby62

Hi everyone! I need to repair a Ddrum AT module : the trigger inputs are not working and i have distortion on outputs, and the...

Uby62
replies: 10 views: 1,347
Avatar for Uby62
Uby62 4 days ago
Avatar for kinjack

Hi all, I've got a Soundcraft Series 600 that I'm slowly recapping rockout Only problem is the gain levels are...

kinjack
replies: 4 views: 264
Avatar for Philbo King
Philbo King 4 days ago
Avatar for superjimmer

Anyone know how to take apart a UM70 capsule? I just want to get he head basket off and straighten the capsule which is slightly...

superjimmer
replies: 6 views: 1,085
Avatar for Swing
Swing 4 days ago
Avatar for Chaoschao99

Hello! I have been trying to get this Korg DW-8000 back in business since purchasing it from Ebay for cheap in an attempt to...

Chaoschao99
replies: 4 views: 1,518
Avatar for acreil
acreil 5 days ago
Avatar for Brett 123

Hi there, Does anyone know about this? I can find two different versions on the web, not sure which one is correct ?...

Brett 123
replies: 3 views: 1,431
Avatar for cathode
cathode 5 days ago
Avatar for gearstudent

Hello, A lot of large diaphragm condenser mics have two diaphragms in them so you can get different polar patterns. Suppose...

gearstudent
replies: 2 views: 164
Avatar for gearstudent
gearstudent 5 days ago
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-,...

okkokkokko
replies: 156 views: 12,992
Avatar for 2Low
2Low 5 days ago
Avatar for sonotor

hello I have a sony mxp 29 mixer and I would like to add a direct out on each channel! Could you help me to pick the signal...

sonotor
replies: 25 views: 6,651
Avatar for romanj
romanj 5 days ago
Avatar for mikewolfe

Haven’t seen this problem in the countless SPX90 repair forums so I figured I’d make a new thread in hopes of solving my...

mikewolfe
replies: 11 views: 415
Avatar for Rick Dalton
Rick Dalton 6 days ago
Avatar for Canaan

Alright this might be a completely stupid question but I have a Mackie 1220 that has a major power supply issue. The lights...

Canaan
replies: 27 views: 7,349
Avatar for Richard Crowley
Richard Crowley 6 days ago
Avatar for Hollowman9

So here's another bizarre exercise in mucking with internal operation of an electronic instrument. The Casio CZ-1 has a circuit...

Hollowman9
replies: 7 views: 2,197
Avatar for gdspackm
gdspackm 6 days ago
Avatar for Joerawas

Hi all, I have a TL Audio M1 Tubetracker. I have a bunch of defective switches I would like to swap out in the...

Joerawas
replies: 0 views: 141
Avatar for Joerawas
Joerawas 6 days ago
Avatar for jimj3114

Hello! What kind of element would be used in a tiny omni built-in talkback microphone or a measurement microphone? I...

jimj3114
replies: 2 views: 178
Avatar for jimj3114
jimj3114 1 week ago
Avatar for OzMic

Hey all! I've just picked up a Shure SM58 wireless mic on the cheap for AUD60, listed as "not working". My intention...

OzMic
replies: 1 views: 163
Avatar for DrewE
DrewE 1 week ago
Avatar for PatPend

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

PatPend
replies: 4 views: 1,089
Avatar for PatPend
PatPend 1 week ago
Avatar for sameal

Im gonna take a wild guess here and say I should not be reading continuity on all 3 pins of this guy eh?

sameal
replies: 10 views: 291
Avatar for enginefire
enginefire 1 week ago
Avatar for invalidusername

Hi I removed the exploded RIFA capacitor from my PS20 yamaha synth PSU, and now i have a very noticeable buzzing/hum sound...

invalidusername
replies: 10 views: 537
Avatar for erickgc182
erickgc182 1 week ago
Avatar for raid

I'm getting into synth restoration and also working on a DIY synth replica, but there are some bits and pieces of knowledge about...

raid
replies: 2 views: 193
Avatar for vintagelove
vintagelove 1 week ago
Avatar for ginetto61

Hi ! i am posting here but of course please feel free to move this question to a more proper place (hopefully not the garbage...

ginetto61
replies: 11 views: 411
Avatar for ginetto61
ginetto61 1 week ago

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