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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: 68 views: 86,317
Avatar for trondl
trondl 28th November 2018
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: 1,078 views: 466,226
Avatar for fazeka
fazeka 16th October 2018
Avatar for gabriel1

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

replies: 16 views: 41,398
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: 30,214
Avatar for Aniol1349
Aniol1349 10th June 2017
Avatar for theBF

I spent the weekend trying to understand and improve the LA-610. I think I found a first step. Appreciate hearing from others...

replies: 22 views: 7,570
Avatar for Charleys
Charleys 6 minutes ago
Avatar for c00kie

Folks, does anybody know if the "top cap assembly" for the light grey buttons (on, display select etc) is available...

replies: 3 views: 230
Avatar for Nyquist
Nyquist 5 hours ago
Avatar for u87allen

I'm a bit confused. I see some high end converters spec'ing in the 130dB range unweighted. But at 10mA the current noise(or...

replies: 29 views: 739
Avatar for ruffrecords
ruffrecords 5 hours ago
Avatar for TeddyS

Long story shot found an old Eventide H3000SE lying on a shelf in a studio and decided to rescue it. The unit turns on, the...

replies: 7 views: 340
Avatar for TeddyS
TeddyS 8 hours ago
Avatar for Jkee1400

I moved my gear to another buildling, and have crazy hum when using single coils. Like noise that is louder than the guitar...

replies: 9 views: 215
Avatar for Radardoug
Radardoug 9 hours ago
Avatar for i64

I was here a few years ago, I found a post from some dudes in the USA who teach music prod for a few weeks, they specialised in...

replies: 2 views: 248
Avatar for i64
i64 14 hours ago
Avatar for sorryguitarist

I have been trying to create my own reverbs using Waves IR1. I am using the provided sweep tone by Waves. Because I have limited...

replies: 0 views: 138
Avatar for sorryguitarist
sorryguitarist 14 hours ago
Avatar for elektrovolt

Hi all, Last week I got a Korg Mono-poly synth that had been stored in its original box for at least twenty years. The synth...

replies: 13 views: 797
Avatar for salvaes
salvaes 18 hours ago
Avatar for lahatte

So I got a dead Yamaha SPX 90, and I also have the schematic. Unfortunately the service manual does not tell me what voltages I...

replies: 59 views: 3,149
Avatar for dynamixii
dynamixii 21 hours ago
Avatar for sbass

Hi, I'm new here and I have a request. I recently bought a Soundcraft 16/08 series II (early 70's). It's a beautiful one but it...

replies: 8 views: 2,620
Avatar for Jim Williams
Jim Williams 22 hours ago
Avatar for Moulin

Hi dear community. Sorry to bring up an old topic but this one has not been solved yet: My Holy Grail Reissue broke. It looks...

replies: 6 views: 464
Avatar for Moulin
Moulin 1 day ago
Avatar for alexstringer

I see a lot of people building their own replica of the G384Fx and sharing the building process in forums but i've never seen (or...

replies: 63 views: 14,633
Avatar for SeanRyder
SeanRyder 1 day ago
Avatar for augustfay

Hello, like many have tried before me, I am going to build my own fader MIDI CC controller. I was about to buy ALPS faders but I...

replies: 0 views: 211
Avatar for augustfay
augustfay 1 day ago
Avatar for joe-electro

PM or email me if you've got one; joe (dot) electro (at) gmail (dot) com. Thanks!!! Joe

replies: 1 views: 940
Avatar for jml designs
jml designs 1 day ago
Avatar for rudolpho

I just found a pair of old RODE NT1 microphones at the bottom of my mic locker. I can only remember buying one so it must have...

replies: 107 views: 49,401
Avatar for LevinGuitar
LevinGuitar 2 days ago
Avatar for Mejis

Hi all, I picked up an Audio Developments AD062 (my second one actually) and it came with a mystery PSU. I opened it to take a...

replies: 1 views: 238
Avatar for Richard Crowley
Richard Crowley 2 days ago
Avatar for rtofvnt

... as per title. Hi, I think this will be my first post on this forum. I have Korg Krome that I'm planning to put up for...

replies: 5 views: 414
Avatar for rtofvnt
rtofvnt 2 days ago
Avatar for Mandala69

Interior views of the Waldorf Q Rack:

replies: 0 views: 208
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Mandala69 2 days ago
Avatar for Gionnibigudd

My beloved Palmer PDI 03 started producing a thin sound recently when connected. It seems like something into the chassis is...

replies: 0 views: 193
Avatar for Gionnibigudd
Gionnibigudd 2 days ago
Avatar for Brian M. Boykin

I started combining a 16/4/2 and a 24/4/2 into a 32/8/2. The 8 bus’s have 2 tape returns each giving 16 total. Plan is to track...

Brian M. Boykin
replies: 17 views: 669
Avatar for Brian M. Boykin
Brian M. Boykin 2 days ago
Avatar for Capashitor

Hi, I'm in the process of replacing some parts in my pair of KT DN504's and my TC 2240. I'm filling the Tx output slots on...

replies: 5 views: 581
Avatar for Cassio2263
Cassio2263 2 days ago
Avatar for Rickard Bengtsso

Hi I am searching for a product or solution for my rack gear that not have a built in power switch on the front. I connect all...

Rickard Bengtsso
replies: 4 views: 256
Avatar for Cabirio
Cabirio 2 days ago
Avatar for Tony cheese

Hi, I bought a Japanese version of the Yamaha Rev7 and have been trying to convert the power supply to the 240V version as...

Tony cheese
replies: 2 views: 273
Avatar for Tony cheese
Tony cheese 3 days ago
Avatar for Pella

Hi, Im in the middle of restoring a Studer A67 that totaly lacks damper grease in the tape tension dampers. Reading up on the...

replies: 8 views: 297
Avatar for Pella
Pella 3 days ago
Avatar for Noco

Hi I'm no expert on technical stuff and have done searches that have yielded similar results but nothing has worked so far. I...

replies: 12 views: 21,504
Avatar for rmixon48
rmixon48 3 days ago
Avatar for kflynt

Hello! I found a MK2 that was never opened and in it is original box for like 10 years. If I take it out, is there any...

replies: 6 views: 385
Avatar for Elsapo2001
Elsapo2001 3 days ago
Avatar for rojaros

Hello, I'm reposting this here as I think I posted it in the wrong forum in the first place: I'm trying to solve a problem...

replies: 10 views: 476
Avatar for u87allen
u87allen 3 days ago
Avatar for Frizle

Hi there everyone, I just signed up and it's my first post -- I hope it's in the right section. I own a Tascam DP-02CF...

replies: 0 views: 234
Avatar for Frizle
Frizle 4 days ago
Avatar for floeff

Hi there, I couldn't find a fitting section for this so I just decided to post it here. So, I found this keyboard from the 80s...

replies: 12 views: 5,414
Avatar for JMJmyzick
JMJmyzick 4 days ago
Avatar for hohohoho

Hi. I want to build a smart A/B switch for the guitar (attaching a picture). The idea is to have a stomp box with two...

replies: 2 views: 358
Avatar for Cabirio
Cabirio 4 days ago
Avatar for monomer

Hi peeps. I was wondering if someone could say something about the relation between contact surface of jacks/plugs and signal...

replies: 18 views: 886
Avatar for u87allen
u87allen 4 days ago
Avatar for aolsen

Hello - My name is Adrian and I help run a studio on an old farm in Richmond, VA. We recently acquired the old 20/24/44...

replies: 8 views: 2,006
Avatar for andybaker28
andybaker28 4 days ago
Avatar for nOiz

Anyone knows the correct trim pot for the output level gain trim on Avalon AD2077?

replies: 0 views: 239
Avatar for nOiz
nOiz 4 days ago
Avatar for Alex Specht

Been looking for output stepdown transformers online and so far the only readily available inexpensive parts ive found are the...

Alex Specht
replies: 15 views: 725
Avatar for ruffrecords
ruffrecords 4 days ago
Avatar for mratx

Has anyone ever replaced the keyboard on a Polivoks with a better keyboard? I have one that has multiple broken/repaired keys,...

replies: 1 views: 271
Avatar for zvukofor
zvukofor 5 days ago
Avatar for grannis

I am a guitarist/BV singer with mild hearing loss, resulting in a notch between around 1khz and 2kz Since I use wired...

replies: 16 views: 991
Avatar for ruffrecords
ruffrecords 5 days ago
Avatar for RBBlackstone

I am looking at a Neumann U87 for a friend. It is getting +48v, but is missing 24 volts at the zener diode. I don't have the...

replies: 7 views: 315
Avatar for RBBlackstone
RBBlackstone 5 days ago
Avatar for Brian M. Boykin

Hello, I’m delving into different flavors of hardware effects processors and as usual buying older gear that I can recap and...

Brian M. Boykin
replies: 1 views: 255
Avatar for Brian M. Boykin
Brian M. Boykin 5 days ago
Avatar for Yetii

Hey folks, i'm owning a Tascam m2600 mkII console and since i cant find a Meterbridge which suits my regional and (more...

replies: 2 views: 330
Avatar for Yetii
Yetii 5 days ago
Avatar for zamproject

Studer 289


Hi all just pick up a "new" console yesterday !!! 1978 studer 289 6 mono, 9 stereo, 6 aux, 6 bus 4 comp, 2 lim, a...

replies: 95 views: 23,840
Avatar for zamproject
zamproject 5 days ago
Avatar for forestcreature

I want to connect a "console" to another room with either 48 or 64 channels of balanced line-level audio. I'm...

replies: 9 views: 353
Avatar for forestcreature
forestcreature 6 days ago
Avatar for Yamin

Hi I recently got a Beyerdynamic DT100 headphone for a present . I noticed that it doesn't sound as "loud" or...

replies: 14 views: 603
Avatar for Lumbergh
Lumbergh 6 days ago
Avatar for lost_blues

Hello I'm trying to find some replacement switches for my Otari (8-trk version). I've attached photos of the broken...

replies: 2 views: 418
Avatar for nucelar
nucelar 1 week ago
Avatar for Florianinside

Hi there, I was curious how it looks inside my Go Keys and so i opened it. Good news: Only type of screw. Bad news: Cables are...

replies: 1 views: 452
Avatar for walkerandera
walkerandera 1 week ago
Avatar for jimmylemper

Hey there Gearslutz, Anybody had experience of smoke comming out of a VXT8? Mine did just now, smells like a rotten...

replies: 2 views: 438
Avatar for Cor1
Cor1 1 week ago
Avatar for JoshCK

*Mods please move if in the wrong section* A friend of mine recently started working in a studio that uses SX Virtual Link to...

replies: 0 views: 238
Avatar for JoshCK
JoshCK 1 week ago
Avatar for Speeddemon

I recently got a used A&H GL2200-424 mixing desk, built in '01. As the original powersupply fan is too noisy for me, for...

replies: 16 views: 1,505
Avatar for Speeddemon
Speeddemon 1 week ago
Avatar for bleakley

DBX 128


Just got a DBX 128. Going to be running my organ (Crumar T1) and synth (Kurz K2000) through it. I play a lot of low pipe organ...

replies: 39 views: 22,938
Avatar for Schurkey
Schurkey 1 week ago
Avatar for c00kie

I bought a used x0xb0x and of course it´s not as mint as advertised. However, my philosophy is to not simply return the item but...

replies: 1 views: 278
Avatar for Johnny T
Johnny T 1 week ago
Avatar for DrJayWi

Hey, I am Looking for Solton Disco 64 Service Manual / Schematics. Cheers jürgen

replies: 0 views: 302
Avatar for DrJayWi
DrJayWi 1 week ago


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