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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 www.SecretMind.dk but...

MicroSonic
replies: 66 views: 82,223
Avatar for Philbo King
Philbo King 1 week ago
Avatar for Tim Farrant

The GUTZ

136


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: 450,108
Avatar for gyraf
gyraf 2 weeks ago
Avatar for gabriel1

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

gabriel1
replies: 16 views: 39,367
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: 28,299
Avatar for Aniol1349
Aniol1349 10th June 2017
Avatar for Explodey

As a few of you may recall, I've been working on this pet project for the past few years that involves using a loop of audio tape...

Explodey
replies: 3 views: 154
Avatar for Richard Crowley
Richard Crowley 1 hour ago
Avatar for belzrebuth

I've got a Ensoniq Eps16+ that's unable to boot. All it does on startup is entering its test mode where when you press a key it...

belzrebuth
replies: 2 views: 171
Avatar for acreil
acreil 1 hour ago
Avatar for tomatoKetchup

Hello all, I'm doing a bit of investigation on this filter and trying to figure out: what was the famous "critical"...

tomatoKetchup
replies: 4 views: 309
Avatar for wrgkmc
wrgkmc 2 hours ago
Avatar for maxmoioli

Hi there, I wish to build a machine to measure the sliding noise on pots and sliders... Here what I understood: 9.Sliding...

maxmoioli
replies: 8 views: 146
Avatar for wrgkmc
wrgkmc 2 hours ago
Avatar for boriscrispin

Hi guys, this is a long shot - but I've obtained a rackmount MXR-171 eq, and it's got noise/hum issues and a bit of hiss on...

boriscrispin
replies: 2 views: 1,655
Avatar for Jim Williams
Jim Williams 5 hours ago
Avatar for MrTeach

Im an old musician/composer who decided to make something again after over 25 years of pause. Have some old relic instruments...

MrTeach
replies: 5 views: 373
Avatar for zamproject
zamproject 7 hours ago
Avatar for Emanuel23

Hi Geekslutz My 5052 had crackling pot meters, and it seemed that a full cleaning service was due. As I found out, one needs to...

Emanuel23
replies: 0 views: 173
Avatar for Emanuel23
Emanuel23 21 hours 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...

sameal
replies: 33 views: 985
Avatar for analogguru
analogguru 21 hours ago
Avatar for The Untuned

My Korg DRV 3000 (vintage reverb/delay) says in the display: internal memory low. So I have to change the internal battery. I...

The Untuned
replies: 2 views: 312
Avatar for Northamusi
Northamusi 1 day ago
Avatar for David Kulka

I'm looking for any schematics or tech info for Orange County version of the Compex. I'm servicing one of the newer versions with...

David Kulka
replies: 0 views: 174
Avatar for David Kulka
David Kulka 1 day ago
Avatar for bangbang

Analog eq causes phase distortion, right? Do the hi pass and internal caps in a microphone do the same thing? I think they...

bangbang
replies: 5 views: 295
Avatar for Jim Williams
Jim Williams 1 day ago
Avatar for Alvin Row

Ive been sent over here as another user thought that you could answer some of my questions. I own a russian analog stringer...

Alvin Row
replies: 0 views: 179
Avatar for Alvin Row
Alvin Row 1 day ago
Avatar for Whoopysnorp

I've been eyeing the Microphone Parts SDC kit lately. I have a couple of MXL603s that never get used, and either I'll mod them or...

Whoopysnorp
replies: 16 views: 1,739
Avatar for Birdlives1955
Birdlives1955 1 day ago
Avatar for darkscorch

Hello, I picked up an MG-1 with a few issues a few months ago for a great price. I've found the service manual online, but...

darkscorch
replies: 0 views: 214
Avatar for darkscorch
darkscorch 1 day ago
Avatar for Systolic

I was given a SPX90II. It powers on, the menus work, it sees the input signal, but no sound is output on either channel. Is...

Systolic
replies: 57 views: 17,879
Avatar for iLCacciLLo
iLCacciLLo 2 days ago
Avatar for jimj3114

Hi! I love my little passive SM Pro Nanopatch 2 passive monitor controller, but it doesn't have a switch to select an...

jimj3114
replies: 0 views: 238
Avatar for jimj3114
jimj3114 2 days ago
Avatar for Hint

Hi all I'm hoping someone can help me diagnose an issue with my monitors. I have a pair of SE Munro Egg150s, bought...

Hint
replies: 29 views: 2,131
Avatar for boyz001
boyz001 2 days ago
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...

grizzlycables
replies: 16 views: 649
Avatar for Brent Hahn
Brent Hahn 2 days ago
Avatar for Tahoebrian5

Anyone know if a Drip still makes these boards? I'm just curious as I've come across a lot of threads about them but nothing...

Tahoebrian5
replies: 0 views: 258
Avatar for Tahoebrian5
Tahoebrian5 2 days ago
Avatar for dvdr

I am hoping for some advice here: I got myself a used TL Audio A 4 summing unit. Mint condition, but on closer inspection, it...

dvdr
replies: 0 views: 237
Avatar for dvdr
dvdr 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: 3 views: 1,571
Avatar for tron23
tron23 2 days ago
Avatar for noah330

Hi, I have done a lot of searching and can't find a product to do what I need. I need a mute switch that simply mutes my...

noah330
replies: 6 views: 1,131
Avatar for Richard Crowley
Richard Crowley 2 days ago
Avatar for Gzmo

Dear all, hope someone could help me. I need a help to find any service manual for Tweed Audio consoles. It looks a really...

Gzmo
replies: 47 views: 16,422
Avatar for RE201
RE201 2 days ago
Avatar for Alvin Row

Hey i dont know if this is the right section to ask but i am working on my russian TOM 1501 synth and i noticed that some of the...

Alvin Row
replies: 9 views: 368
Avatar for Alvin Row
Alvin Row 2 days ago
Avatar for niva

Hello sluters! I am looking for various Yamaha PM-2000 bits and parts. The most valuable ones are: - Knobs - PSU...

niva
replies: 8 views: 653
Avatar for niva
niva 3 days ago
Avatar for dsaudio

I'm wondering what is causing the periodic static bursts on output #14 on my Alesis HD24XR recorder. The static only appears on...

dsaudio
replies: 1 views: 275
Avatar for Jim Williams
Jim Williams 3 days ago
Avatar for forestcreature

What is the "demodulated follower", e.g. pin 10 on a CD4046? I think I understand that it follows the correction...

forestcreature
replies: 0 views: 247
Avatar for forestcreature
forestcreature 3 days 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: 21 views: 1,594
Avatar for Sonate
Sonate 3 days ago
Avatar for iltrich

Hello, I have a DBX 166XL Compressor/Limiter/Gate :facepalm:. Is there anyway to modify it to improve its performance? Is the...

iltrich
replies: 6 views: 2,617
Avatar for LifeWhyz
LifeWhyz 3 days 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...

Hollowman9
replies: 32 views: 1,218
Avatar for Hollowman9
Hollowman9 3 days ago
Avatar for BHW

I have problems with my Zoom 9010, if i switch to routing 3 and use on e1 and e2 and phaser. I have problems on the e1 channel....

BHW
replies: 0 views: 213
Avatar for BHW
BHW 4 days ago
Avatar for Spano

Hey everybody how are you? ^^) I want to try building a guitar cabinet it seems like it could be an easy way to really branch...

Spano
replies: 8 views: 684
Avatar for lame pseudonym
lame pseudonym 4 days ago
Avatar for jetproplabs

I have a lomo 19a9 that I bought about ten years ago. The power supply is a pretty straight forward box like a neumann, AKG,...

jetproplabs
replies: 12 views: 2,363
Avatar for rozovoku4e
rozovoku4e 4 days ago
Avatar for rachtaia

Hi I was looking for a service manual and someone suggest me to ask here. I repair some old stuff as tube amps, pedals,...

rachtaia
replies: 1 views: 363
Avatar for Synth Guru
Synth Guru 5 days 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...

SP2016
replies: 7 views: 421
Avatar for electricsound
electricsound 5 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: 1 views: 317
Avatar for Pinebox Studio Services
Pinebox Studio Services 5 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...

wolf1419
replies: 7 views: 507
Avatar for wolf1419
wolf1419 5 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...

tasoshobby
replies: 1 views: 352
Avatar for tasoshobby
tasoshobby 5 days ago
Avatar for Blissy

My SPX 90 is really noisy. i believe it is the power supply. It gets very hot, I think its on it's way out. was thinking of...

Blissy
replies: 9 views: 1,092
Avatar for soulguitar
soulguitar 6 days 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...

crzmky
replies: 2 views: 277
Avatar for crzmky
crzmky 6 days 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...

ArKay99
replies: 17 views: 4,981
Avatar for Legali
Legali 1 week 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: 279
Avatar for mr. harrison
mr. harrison 1 week 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...

Martel80
replies: 3 views: 662
Avatar for Martel80
Martel80 1 week 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...

steefaan
replies: 3 views: 557
Avatar for Man-Machine
Man-Machine 1 week 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...

Princeton.Verb
replies: 10 views: 1,077
Avatar for Princeton.Verb
Princeton.Verb 1 week 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...

noah330
replies: 15 views: 623
Avatar for forestcreature
forestcreature 1 week 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...

Riinehart
replies: 2 views: 733
Avatar for analog greg
analog greg 1 week 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...

DanFor
replies: 3 views: 559
Avatar for DanFor
DanFor 1 week 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...

RichRadio
replies: 0 views: 267
Avatar for RichRadio
RichRadio 1 week 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: 379 views: 245,662
Avatar for onlyme
onlyme 1 week ago

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