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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: 86,435
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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: 466,578
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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: 41,459
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: 30,279
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Aniol1349 10th June 2017
Avatar for shortyboyboy

Hello Gang, I have a Trident 65 that has a few channel strips that don't seem to be as strong as the rest. I am trying to...

replies: 2 views: 112
Avatar for DrewE
DrewE 7 minutes ago
Avatar for Kevingrant16

Hey guys quick question which one of these laptop is good for music production Dell Alienware R17 HP ZBook G3 Acer Aspire V17...

replies: 0 views: 77
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Kevingrant16 4 hours ago
Avatar for endorka

Hello folks, I recently bought a used Presonus Faderport (single fader version) from Ebay without the proper PSU. Works great...

replies: 14 views: 2,109
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Kevingrant16 5 hours ago
Avatar for rabbit friendly

I want to run some tape loop experiments and wondering if you can monitor a live input from tape? For instance, I want to have a...

rabbit friendly
replies: 1 views: 136
Avatar for analogguru
analogguru 6 hours ago
Avatar for bubblebash

I've been buying adapters at thrift-stores for gear that didn't come with one, and getting a precise amperage match isn't always...

replies: 1 views: 163
Avatar for JohnRoberts
JohnRoberts 12 hours ago
Avatar for sameal

Hi. Awhile back i built a p.s. for my soundcraft delta board ( off suggestions from many threads with many knowledgable...

replies: 5 views: 185
Avatar for sameal
sameal 15 hours ago
Avatar for mixedbyjeff

Hi all, I have an Audix MXT-500 console here - is there any chance anyone has a full schematic or knows where to find one? I...

replies: 0 views: 148
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mixedbyjeff 16 hours ago
Avatar for BrassElephant

Hi, I'd like to add a master volume to my 64 Deluxe Reverb. I found this site a few months ago: AB763 Mods by Robinette,...

replies: 3 views: 170
Avatar for UKMK00
UKMK00 16 hours ago
Avatar for Gik

Hi all I have been looking at low cost altrenatives for microphone preamps lately when I came upon threads raving about the...

replies: 7 views: 1,179
Avatar for jml designs
jml designs 16 hours ago
Avatar for Franco the Manco

Hi, I have a pair of Alto Professional 210 s which i rent out for private parties where operation is not supervised....

Franco the Manco
replies: 1 views: 146
Avatar for Jay Rose
Jay Rose 18 hours ago
Avatar for jml designs

I’ve got an old Urei LA-22 and it needs to be (apparently) terminated. I’ve seen guys put resistors across the output (was it...

jml designs
replies: 5 views: 301
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jml designs 20 hours ago
Avatar for Jonk

How does one go about measuring the current of an opamp? I understand I need to change one of my multimeter leads to the...

replies: 5 views: 175
Avatar for DrewE
DrewE 21 hours ago
Avatar for 3stamme

Hi everyone. I was just wondering since i have been doing some looping lately - opening up some of my maxell tapes and cutting...

replies: 9 views: 347
Avatar for Richard Crowley
Richard Crowley 21 hours ago
Avatar for tomhetas

Hey guys. A very kind member suggested to move my question to this thread. So recently I've bought an old Hill Audio Conecpt...

replies: 1 views: 205
Avatar for Jay Rose
Jay Rose 23 hours ago
Avatar for SeanRyder

Hey All - I have had an intermetinet short in the right channel for a little while, which seems to be related to the ratio...

replies: 2 views: 253
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SeanRyder 1 day ago
Avatar for alba359

Hello guys, Any help is greatly appreciated. I have a Behringer Ultra Curve Pro 8024 with low battery warning. Can anyone advise...

replies: 2 views: 463
Avatar for francociccio
francociccio 1 day ago
Avatar for MicDaddy

Long story short: Saw an 'As-Is' non-working MD441 on ebay for too low of a price to stay away heh Sure enough it showed up...

replies: 13 views: 7,934
Avatar for blackjono2000
blackjono2000 1 day ago
Avatar for whatever17

Hi my AMDEK DMK-100 has started playing up - i'll do an audio example later - as soon as Effect is engaged, there's a...

replies: 2 views: 176
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whatever17 1 day ago
Avatar for trondl

Bought this machine for cheap in very good condition a year ago and plan to give it at least new caps for the psu before I even...

replies: 2 views: 204
Avatar for wrgkmc
wrgkmc 1 day ago
Avatar for bram

I have a nice little Audio Developments mixer, ad031. 8channel, basic filtering, 1 aux, dual compressor, inserts on the master....

replies: 7 views: 2,355
Avatar for Jim Williams
Jim Williams 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...

replies: 20 views: 3,135
Avatar for playon
playon 2 days ago
Avatar for KissMyRobot

Taking inspiration from Pre-Order Colour Modular Analog Saturator but simply because I don't own a 500 series rack, I was...

replies: 40 views: 4,348
Avatar for coso
coso 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: 20 views: 748
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Brian M. Boykin 2 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: 16 views: 790
Avatar for Alex Specht
Alex Specht 2 days ago
Avatar for schelmusic

Hello, Ive recently pickup this mixer at very low cost and plan to use it with my small home studio setup. The Foldback sends...

replies: 1 views: 2,292
Avatar for EvLoutonian
EvLoutonian 2 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: 10 views: 352
Avatar for GLouie
GLouie 2 days ago
Avatar for raal

i've seen different transformers on ebay all claiming to be the original parts found in an LA2A: UTC A10, UTC A24, UTC HA100x...

replies: 4 views: 1,832
Avatar for Jim Williams
Jim Williams 2 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: 8 views: 381
Avatar for mbrebes
mbrebes 3 days ago
Avatar for Mandala69

I had a problem with my Waldorf Q Rack's "shift" button so I opened my Waldorf Q Rack to see if it was a problem I...

replies: 0 views: 185
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Mandala69 3 days ago
Avatar for Mandala69

I had a problem with my Waldorf Q Rack's "shift" button so I opened my Waldorf Q Rack to see if it was a problem I...

replies: 0 views: 179
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Mandala69 3 days ago
Avatar for JohnnyBeGood510

I just got an Apollo firewire UAD interface....I wonder if this can work with my Mac Pro G5.1...since they can be connected with...

replies: 3 views: 467
Avatar for MichelleTanner
MichelleTanner 3 days 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: 31 views: 869
Avatar for u87allen
u87allen 3 days ago
Avatar for SAnthony

I am Looking for Schematics and any available Technical repair Info available on the Alesis Adat XT20. I have 2 of these with the...

replies: 7 views: 8,793
Avatar for jantoman
jantoman 3 days 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: 13 views: 361
Avatar for RightOnRome
RightOnRome 3 days 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: 9 views: 410
Avatar for Radardoug
Radardoug 3 days ago
Avatar for edoerr

I purchased a used Rokit 5 RPG2 powered speaker. It has almost no output audio. The TRS and XLR inputs act the same. I know my...

replies: 0 views: 167
Avatar for edoerr
edoerr 3 days 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: 3 views: 306
Avatar for Jay Rose
Jay Rose 3 days 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: 4 views: 281
Avatar for wrgkmc
wrgkmc 4 days ago
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: 7,633
Avatar for Charleys
Charleys 4 days 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: 213
Avatar for sorryguitarist
sorryguitarist 4 days 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: 821
Avatar for salvaes
salvaes 4 days 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: 3,190
Avatar for dynamixii
dynamixii 4 days 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: 2,660
Avatar for Jim Williams
Jim Williams 4 days 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: 490
Avatar for Moulin
Moulin 5 days 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: 14,700
Avatar for SeanRyder
SeanRyder 5 days 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: 271
Avatar for augustfay
augustfay 5 days 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: 963
Avatar for jml designs
jml designs 5 days 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: 49,502
Avatar for LevinGuitar
LevinGuitar 6 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: 273
Avatar for Richard Crowley
Richard Crowley 6 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: 455
Avatar for rtofvnt
rtofvnt 6 days ago


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