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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: 82,160
Avatar for Philbo King
Philbo King 6 days 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: 449,821
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: 39,330
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: 28,267
Avatar for Aniol1349
Aniol1349 10th June 2017
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: 1,093
Avatar for Richard Crowley
Richard Crowley 2 hours 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: 54 views: 17,778
Avatar for iLCacciLLo
iLCacciLLo 5 hours 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: 14 views: 577
Avatar for Brent Hahn
Brent Hahn 6 hours 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: 16,362
Avatar for RE201
RE201 8 hours 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: 324
Avatar for Alvin Row
Alvin Row 9 hours 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: 2 views: 235
Avatar for tomatoKetchup
tomatoKetchup 10 hours 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: 634
Avatar for niva
niva 13 hours 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: 242
Avatar for Jim Williams
Jim Williams 13 hours 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: 160
Avatar for forestcreature
forestcreature 14 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: 21 views: 1,569
Avatar for Sonate
Sonate 15 hours 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: 2,594
Avatar for LifeWhyz
LifeWhyz 23 hours 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: 1,195
Avatar for Hollowman9
Hollowman9 1 day 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: 1 views: 266
Avatar for Northamusi
Northamusi 1 day 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: 188
Avatar for BHW
BHW 1 day 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: 3 views: 322
Avatar for zamproject
zamproject 1 day 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: 661
Avatar for lame pseudonym
lame pseudonym 1 day 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: 2,346
Avatar for rozovoku4e
rozovoku4e 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: 15 views: 1,684
Avatar for joesilver
joesilver 2 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: 331
Avatar for Synth Guru
Synth Guru 2 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: 401
Avatar for electricsound
electricsound 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: 1 views: 299
Avatar for Pinebox Studio Services
Pinebox Studio Services 3 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: 471
Avatar for wolf1419
wolf1419 3 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: 330
Avatar for tasoshobby
tasoshobby 3 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: 1,074
Avatar for soulguitar
soulguitar 3 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: 257
Avatar for crzmky
crzmky 4 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: 4,963
Avatar for Legali
Legali 4 days 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: 257
Avatar for mr. harrison
mr. harrison 4 days 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: 644
Avatar for Martel80
Martel80 4 days 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: 540
Avatar for Man-Machine
Man-Machine 5 days 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: 1,065
Avatar for Princeton.Verb
Princeton.Verb 5 days 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: 603
Avatar for forestcreature
forestcreature 5 days 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: 714
Avatar for analog greg
analog greg 5 days 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: 539
Avatar for DanFor
DanFor 5 days 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: 246
Avatar for RichRadio
RichRadio 5 days 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: 245,411
Avatar for onlyme
onlyme 5 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: 308
Avatar for dfchandler
dfchandler 6 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...

tubeing
replies: 7 views: 328
Avatar for tubeing
tubeing 6 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...

BradM
replies: 17 views: 5,645
Avatar for feadan
feadan 6 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...

Sadomiso
replies: 4 views: 422
Avatar for RKelly
RKelly 6 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...

sameal
replies: 30 views: 926
Avatar for Ingenia
Ingenia 6 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...

belzrebuth
replies: 1 views: 331
Avatar for belzrebuth
belzrebuth 6 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...

hemi666
replies: 3 views: 499
Avatar for hemi666
hemi666 6 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...

ejt
replies: 1 views: 344
Avatar for ejt
ejt 1 week 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...

Gimlay
replies: 8 views: 2,748
Avatar for hellofishy
hellofishy 1 week 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...

Praxisaxis
replies: 16 views: 757
Avatar for WorldPowerLabs
WorldPowerLabs 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: 3 views: 498
Avatar for PatPend
PatPend 1 week 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: 20,498
Avatar for ponzi
ponzi 1 week 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...

danmaxson
replies: 4 views: 316
Avatar for danmaxson
danmaxson 1 week 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...

erict35
replies: 6 views: 609
Avatar for Vitalis
Vitalis 1 week 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...

oldgearguy
replies: 2 views: 323
Avatar for oldgearguy
oldgearguy 1 week ago

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