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

Tim Farrant
replies: 1,147 views: 542,777
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rez 2 weeks ago
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I have been collecting schematics for 30 years and 5 years ago I started make them available at my site but...

replies: 82 views: 116,498
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MicroSonic 18th July 2020
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DSP Innovations has recently launched a FREE data sheet search site. The site, - Search Electronic Components ,...

replies: 19 views: 54,479
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msbettyhunt 27th March 2020
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Anyone who offers technical services should get themselves listed into the new member directory here... Gearslutz Directory:...

Tim Farrant
replies: 9 views: 43,563
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msbettyhunt 24th March 2020
Avatar for Jazzy

Hi all, I while back I purchased a "Finhol Air Kick" which was a novel idea of triggering a bass drum sample via air...

replies: 0 views: 178
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Jazzy 1 hour ago
Avatar for stevefuzz72

Hello I have a Roland D-5 that came to me with all sort of problems. After a full cap job and tact switches replacement,...

replies: 0 views: 271
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stevefuzz72 4 hours ago
Avatar for starfield

so to make a long story short I came upon an old arp solina (first version) a while back and failed to open it up and check it...

replies: 27 views: 4,238
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guvech 6 hours ago
Avatar for Maxcutch

I have been looking at upgrading my Avantone CV-12 and by putting a new tube and capsule in it. I can't seem to find any info on...

replies: 0 views: 411
Avatar for Maxcutch
Maxcutch 11 hours ago
Avatar for Sircalhobz

Hi, so I'm an audio engineer who has been lucky enough to have my hands and ears grace some of the best or at least most well...

replies: 14 views: 1,425
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Disharmonic 17 hours ago
Avatar for LeftRustle

... asking in some forums and got very mixed replies. I have two 16 ohm cabs (AX/BX) that'd I'd would like to run together with...

replies: 4 views: 321
Avatar for Cabirio
Cabirio 17 hours ago
Avatar for DaSunlounge

Wondering if anyone could help me out please. I have an Issue with a korg poly 61, everything seems to function as it should...

replies: 0 views: 118
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DaSunlounge 18 hours ago
Avatar for Jhonnie

Does anyone have a Drawmer M500 service manual or schematic? I have one channel distorted. It looks like the digital processor...

replies: 25 views: 5,282
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Zapman 18 hours ago
Avatar for HSLand

I once cleaned some pots with deoxit d5 and it brought them back to life... but they were very loose since the deoxit ate through...

replies: 14 views: 2,168
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Thomas W. Bethe 20 hours ago
Avatar for JJSound21

Hey y'all. I'm a hobbyist, and I just came upon an Aphex CX-1 compressor. It seems like a cool vintage unit. I saw on the...

replies: 2 views: 746
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Gnarmageddon 20 hours ago
Avatar for Lewis Robertson

Hi all, I'm hoping the hive mind can help me with this problem that has stumped me, as well as a local studio tech. There are...

Lewis Robertson
replies: 81 views: 11,742
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Jim Williams 21 hours ago
Avatar for Un_Illuminate

So, I want to build what I think should be a relatively simple piece of equipment. You know how we pass signal through an 1176...

replies: 4 views: 348
Avatar for Cabirio
Cabirio 22 hours ago
Avatar for TheVillageIdiot

I just went to fire up my RED Audio Type A tube mic and when I plug the 7 pin cable into the mic body the light on the power...

replies: 5 views: 953
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polimorfos 22 hours ago
Avatar for Hoffmanwantsgear

Hi, does anyone have any experience or ideas regarding a Blue Bottle Rocket Stage 2 power supply, the red light turned to green...

replies: 15 views: 1,886
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polimorfos 23 hours ago
Avatar for audiofileAus

Hello all, For those into analog tape, in particular Studer analog tape, might enjoy our recent renovation of a Studer...

replies: 3 views: 456
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ruffrecords 1 day ago
Avatar for salomonander

hey guys today i realized that my converters have some real serious issues (mytek 8x192). there is high frequency oscillation...

replies: 31 views: 1,539
Avatar for dreske
dreske 1 day ago
Avatar for RaygunRS

Hey slutz, I have a pair of Sputniks, and one of them is dead. Doesn't light up, and I've tried replacing the fuse. I sent it...

replies: 8 views: 1,720
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imaginaryday 1 day ago
Avatar for Spano

So I'm using a very nice soldering rod that was gifted to me by a very nice and awesome. They moved away before I could get a...

replies: 27 views: 2,442
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12ax7 1 day 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: 2 views: 1,296
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tfgibbon 1 day ago
Avatar for rajaaudio

HI Does anyone have TL AUDIO M1 TUBETRACKER schematic ? I have some problem in the pre preamp after i change tubes :deth: same...

replies: 0 views: 501
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rajaaudio 2 days ago
Avatar for Radardoug

Hi, a client sent me a Beezneez Arabella mike that the power supply had died on. Turned out to be the power transformer. So I...

replies: 0 views: 327
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Radardoug 2 days ago
Avatar for Studio ManCave

Hey all I'm recapping my Soundcraft 6000 console and thought I'd make an excel file of the caps in each of the units. I don't...

Studio ManCave
replies: 16 views: 5,960
Avatar for Jim Williams
Jim Williams 2 days ago
Avatar for Animisha

Hi! howdy I am new here, so please tell me if I post this question in the wrong place. I have a Mac Air that I use almost...

replies: 3 views: 471
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Animisha 2 days ago
Avatar for DarkAlchy

My computer is a RFI hot bed that I only found once I purchased my first two mics and I need some help. If I get within six...

replies: 20 views: 1,788
Avatar for Rick Dalton
Rick Dalton 3 days ago
Avatar for spectrasound

I have a constant "err-90" message on the remote control for my Otari MX80 24 track machine. I read all the comments...

replies: 2 views: 575
Avatar for Thomas W. Bethe
Thomas W. Bethe 3 days ago
Avatar for NvisibleSound

I hadn't used my M88 in a while. I pulled it out a few months ago and it suddenly sounded thin and hollow. Not at all how I...

replies: 5 views: 895
Avatar for chris661
chris661 3 days ago
Avatar for plutoniq

Well I’m dead in the water it seems, after rebuilding the power supply I tracked down the 2-prong ac cable today and while the...

replies: 3 views: 620
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plutoniq 3 days ago
Avatar for mlukey

Doe's anyone know of any full audio kit building companies out there? I recall one called PCB Grinder but are there others? Easy...

replies: 11 views: 900
Avatar for mlukey
mlukey 3 days ago
Avatar for turtlejon

so, my ancient D12E is not putting out any signal at all. I compared it to my even more ancient D12 (not E) and it seems like the...

replies: 1 views: 236
Avatar for turtlejon
turtlejon 4 days ago
Avatar for undermind

Hello, I'm really hoping someone can help me out. I'm trying to track down the build guide for the Bart HRK mpq568c mic preamp....

replies: 4 views: 845
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housegezeichnet 4 days ago
Avatar for smakdaady

I picked up a TPSII recently and it was DOA, so, started to troubleshoot. Actually the toroid transformer got REALLY hot REALLY...

replies: 2 views: 476
Avatar for MediaGary
MediaGary 5 days ago
Avatar for lionel reed

Hi There, I just opened up my Trident MKII to do some minor cleaning and noticed that the Battery has gone bad. I found some...

lionel reed
replies: 0 views: 349
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lionel reed 5 days ago
Avatar for Boksholm

Hi! First post in theese forums! =) My Hi-fi-amp which I'm going to use as a guitar amp blows fuses after I accidentally made...

replies: 2 views: 857
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cathode 5 days 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...

replies: 9 views: 596
Avatar for Yoski
Yoski 5 days ago
Avatar for Hideki

Does this preamp/converter support being powered from either 120V and 230V, or does the power supply (it looks like a switching...

replies: 5 views: 802
Avatar for bungee
bungee 5 days ago
Avatar for eddiejobson

Hi all, I hope this is the right place to post this question. I was given a pair of very old Bose 101 speakers. I don't have...

replies: 13 views: 12,728
Avatar for Gae
Gae 6 days ago
Avatar for M.Retra

Forward Hello fellow GS'ers! This is a reissue of a thread that I started over in the Cakewalk forums. It was immensely...

replies: 67 views: 21,604
Avatar for M.Retra
M.Retra 6 days ago
Avatar for octopi

Does anyone have a schematic for the Omniphonic Pre 2 please? It's the fully balanced version of the Pre 1 and all inputs and...

replies: 0 views: 168
Avatar for octopi
octopi 6 days ago
Avatar for xqtion

Ok I decided to mod my Yamaha HS80m since I'm pretty happy with it but like anything it can always be better :) I've opened it...

replies: 75 views: 20,739
Avatar for DGByrne
DGByrne 6 days ago
Avatar for Byron

Hi all, I have an NPNG DMP-2NW that needs a (hopefully minor) repair. The problem is no signal on channel 1. No action on...

replies: 3 views: 1,053
Avatar for KIDBILL
KIDBILL 1 week ago
Avatar for cuba1956

Hi guys, hope I'm in the right section. I've recently purchased Studer 904 console in working order, but a bit rough around...

replies: 3 views: 887
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mintytowel 1 week ago
Avatar for ryandfaris

I'm fixing up a Tesla EJU 124 channel strip I got for next to nothing. Got it working just "fine" but it's got real low...

replies: 8 views: 1,114
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dkelley 1 week ago
Avatar for sameal

Hi! I noticed plate reverb clips are being remade, hurray inovation! And im wondering if there would be any added benefit to...

replies: 0 views: 443
Avatar for sameal
sameal 1 week 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...

replies: 12 views: 1,737
Avatar for Uby62
Uby62 1 week ago
Avatar for djschantz

Is it possible to add a MIDI connection to a synthesizer that doesnt come with one? I see people bending circuits and changing...

replies: 4 views: 768
Avatar for ma_headphone
ma_headphone 1 week ago
Avatar for TMI

I have located a small number of NOS a/d converters for the Lexicon PCM 80 PCM 90 series of digital reverbs that I am using for...

replies: 106 views: 27,782
Avatar for pangea2003
pangea2003 1 week ago
Avatar for homebound

I've got a Sony DPS-M7 that displays the "Battery Voltage Low" warning at boot. Is this battery soldered in? I've...

replies: 4 views: 7,338
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scokljat 1 week ago
Avatar for ma_headphone

Does anybody have the firmware on the Akai S950 EEPROM? I'd be interested in taking a look at the binary and possibly try to...

replies: 0 views: 208
Avatar for ma_headphone
ma_headphone 1 week ago
Avatar for ajcamlet

I have some A10 channels on an Amek Angela with Alps faders. They have a resistor between pins 1 & 2 on the fader, was...

replies: 3 views: 1,114
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zzjochen 1 week ago
Avatar for AVaughn

Hi, this might be a beaten-to-death subject, with some (maybe similar?) threads on here referring to the topic. I have two quite...

replies: 14 views: 1,167
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JohnRoberts 1 week ago


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