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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: 1,158 views: 549,805
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soundebler 1 week ago
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: 86 views: 118,242
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waveterm 3 weeks ago
Avatar for gabriel1

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

replies: 19 views: 55,314
Avatar for msbettyhunt
msbettyhunt 27th March 2020
Avatar for Tim Farrant

Anyone who offers technical services should get themselves listed into the new member directory here... Gearslutz Directory:...

Tim Farrant
replies: 9 views: 44,366
Avatar for msbettyhunt
msbettyhunt 24th March 2020
Avatar for felixmcore

Hello everyone! I recently changed all the pots in my Revox A77 MK2. Because some of them were broken, I could not measure...

replies: 5 views: 266
Avatar for ruffrecords
ruffrecords 3 hours ago
Avatar for drewharris

I'm looking to build a very simple A/B balanced stereo switcher box. I have 2 preamp channels that I want to be able to quickly,...

replies: 4 views: 181
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ruffrecords 3 hours ago
Avatar for Adam12345678

Hi peeps, I'm wanting to get my korg m1 serviced but I'm poor and worried about the cost, does anybody know (roughly) what the...

replies: 2 views: 135
Avatar for Adam12345678
Adam12345678 4 hours ago
Avatar for Diana McC

Hi! I have a photo of my grandmother at the start of her radio career, and would love to know what kind of mic she is posing with...

Diana McC
replies: 2 views: 247
Avatar for Diana McC
Diana McC 8 hours ago
Avatar for QueenSisi

Hi , Iam making an u48 now I struggled with a resistor of 150megaohm. Look at the pic of scematic u48. How many W should it be.

replies: 4 views: 247
Avatar for QueenSisi
QueenSisi 16 hours ago
Avatar for trondl

I've recently gotten the mentioned unit plus a TR-707 and MKS-30 for a laugh. Today I tested it and it made sound for about a...

replies: 11 views: 2,106
Avatar for clausi
clausi 17 hours ago
Avatar for ButtonBoy

Hey guys! I’m a student helping to create the Buttons project. With this project, we're creating a service for making custom...

replies: 1 views: 567
Avatar for Avril.Fr
Avril.Fr 20 hours ago
Avatar for martinusbaum

hi could not find anywhere a service manual or schematic of studiomaster series 5 mixer. Series 3 did not matter. please help!...

replies: 0 views: 80
Avatar for martinusbaum
martinusbaum 20 hours ago
Avatar for codeowl

Hi there, I have been researching Attenuation for guitar amps. I currently have: AMPS: 15 watt Fender Super Champ X2 50...

replies: 1 views: 195
Avatar for Arthur Stone
Arthur Stone 22 hours ago
Avatar for rp3703

Is there a way to confirm that a dry guitar or bass signal coming out of the instrument's pickups is the same once that same...

replies: 3 views: 127
Avatar for rp3703
rp3703 22 hours ago
Avatar for bassmuse

Hi all! Today I was messing with my amplification setup and accidentally turned on my Crown xti 4002 without any speakers...

replies: 14 views: 288
Avatar for Rick Dalton
Rick Dalton 22 hours ago
Avatar for u929

Hello, I'm looking to buy a UTC HA-100X (vintage), is anyone selling one?

replies: 1 views: 140
Avatar for Thomas W. Bethe
Thomas W. Bethe 1 day ago
Avatar for ma_headphone

Hi. I'd like to add transformer colouring in my processing chain, I've been reading a bit on how it works, but it would be nice...

replies: 7 views: 574
Avatar for cbc6403
cbc6403 1 day ago
Avatar for arch1

Turned on my ghost 32 power supply and it died on me. CPS 275. No power to the board, fan stopped also. The center and right...

replies: 33 views: 2,844
Avatar for Zupe
Zupe 1 day ago
Avatar for dimebucker5

Hi there, trying to determine if my power transformer has failed, very difficult for me to get to a good technician (im in west...

replies: 5 views: 154
Avatar for David Kulka
David Kulka 1 day ago
Avatar for marcus_k

Hi guys - I just moved to a new place (i'm in CA, USA) and all of my guitars and amps are now picking up quite a nasty bit of...

replies: 19 views: 722
Avatar for blueNan
blueNan 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: 17 views: 6,210
Avatar for Natethekill
Natethekill 2 days ago
Avatar for Boris_partys

It looks like DBX does not have spare part meters of their obsolete DBX 162 SL compressor. What I have found are meters without...

replies: 2 views: 261
Avatar for Boris_partys
Boris_partys 2 days ago
Avatar for golden_ears

After building a Command 8 power supply, I’m going to attempt a power supply for my Rane Hc6 (noted as a RS-2 rather than...

replies: 5 views: 326
Avatar for analogguru
analogguru 2 days ago
Avatar for thomasdf

Hi all I'm a long time reader of this forum, and a newly registered member, from Paris, France. I bought a Yamaha SPX90...

replies: 189 views: 24,781
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rjb5191 2 days ago
Avatar for Adam12345678

Hi everyone, when ever i use my boss fs7 footswitch with my looper i get this noise as soon as i press a key on piano, it's all...

replies: 0 views: 98
Avatar for Adam12345678
Adam12345678 2 days ago
Avatar for James Meger

Hi, this is my first real post here and I just wanted to thank everyone for all the incredibly valuable information I’ve soaked...

James Meger
replies: 2 views: 157
Avatar for Thomas W. Bethe
Thomas W. Bethe 3 days ago
Avatar for Adam12345678

Hi good people, I'm wanting to use the korg m1 vst with boss rc 505 but cant seem to get the vst to communicate with rc 505, (I...

replies: 0 views: 117
Avatar for Adam12345678
Adam12345678 3 days ago
Avatar for Jobot

I just got a soundtracs FMX off a friend for free. Nice mixer. Running it into dynaudio BM5A.With no inputs plugged into it, all...

replies: 0 views: 99
Avatar for Jobot
Jobot 3 days ago
Avatar for Mr. Tom

Hi, Have some nice vintage xformers here, And been thinking of building a DI box. Guitar/bass in- XLR + unbal out. Any...

Mr. Tom
replies: 1 views: 139
Avatar for cbc6403
cbc6403 3 days ago
Avatar for Thomas W. Bethe

Here is the replacement relay for K101 on Tascam Tape Decks 32. 34 and 38. Took a while to find but it works great! The...

Thomas W. Bethe
replies: 0 views: 112
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Thomas W. Bethe 3 days ago
Avatar for Deleted c117a9d

Says it's disabled... anybody know how can I register? I wanted to ask some questions about Hairball's preamp kits over there and...

Deleted c117a9d
replies: 54 views: 4,347
Avatar for James Meger
James Meger 3 days ago
Avatar for Rubbl

I´m planing to build a mutron III clone. Most of the parts are no problem but maybe someone can suggest an opto coupler for the...

replies: 3 views: 303
Avatar for Cylon Centurion
Cylon Centurion 3 days ago
Avatar for Adam12345678

Hi there, does anyone know how to get vst to communicate with foucusrite 2i2 scarlett ? Thanks Adam...

replies: 4 views: 248
Avatar for Adam12345678
Adam12345678 3 days ago
Avatar for nitraus

Hello, my good ole Radial X-Amp (old version, blue chassis) suddenly died after remaining turned on for some hours in a row. You...

replies: 2 views: 212
Avatar for nitraus
nitraus 3 days ago
Avatar for waveterm

Hi there ! Has anyone replaced the rotary encoder on a Sony DPS unit ? I have a DPS-F7 that has a broken rotary encoder. It...

replies: 1 views: 143
Avatar for waveterm
waveterm 4 days ago
Avatar for owai

Hello, I'm trying to fix a Roland HP 2900g, but i can't find a schematic or a service manual. A small transistor...

replies: 15 views: 3,169
Avatar for Jovlie
Jovlie 4 days ago
Avatar for denmla

Hi to all, I'm new here! Few moments ago my beloved Prophecy died - it wont turn on. I feel really bad, had it just for over a...

replies: 15 views: 416
Avatar for Rick Dalton
Rick Dalton 4 days ago
Avatar for wadesey

I have a Tapco 4400a spring reverb on long-term borrow that I finally got around to testing. I know these things are noisy, but...

replies: 6 views: 461
Avatar for wadesey
wadesey 5 days ago
Avatar for JJSound21

Hey guys, I just got a used Alta Moda Hippo compressor off of Reverb for a pretty good deal. Apart from some cosmetic issues,...

replies: 2 views: 671
Avatar for Audio Atelier
Audio Atelier 5 days ago
replies: 0 views: 173
Avatar for FMunny
FMunny 5 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: 5 views: 890
Avatar for maxbobo
maxbobo 5 days ago
Avatar for CeeNotez

#35 1 minute ago I know this is an old thread but I am in dire need of some assistance. I own a VX2 and I pulled my studio...

replies: 0 views: 144
Avatar for CeeNotez
CeeNotez 5 days ago
Avatar for 5stringfretless

Hi folks. I am looking for a service manual for a Korg DT-1 Pro. This is the rack version of the tuner. Specifically I am looking...

replies: 1 views: 349
Avatar for LoveRawk69
LoveRawk69 5 days ago
Avatar for davidsound

Hi all. I just received a pair NS-10Ms from Japan. Good price and I was told they are fully working. One of the woofers isn’t...

replies: 2 views: 247
Avatar for davidsound
davidsound 5 days ago
Avatar for jayc

Hi guys, I live outside the US and the main power supplies here run at 230-240v. I just had a friend in the states pick me...

replies: 8 views: 2,208
Avatar for ang3l
ang3l 5 days ago
Avatar for el foarko

hello! finally joining the forum after years of lurking to make this thread... I have a Yamaha DX7 (mk.1) I got given a couple...

el foarko
replies: 10 views: 434
Avatar for el foarko
el foarko 5 days ago
Avatar for Mr. Tom

Hi, Having some major buzz in my system. Not electrical ground related me thinks. Read somewhere here that when building a...

Mr. Tom
replies: 2 views: 186
Avatar for Mr. Tom
Mr. Tom 6 days ago
Avatar for mattwa1sh

Hi-- I have some minor problems with certain audio cards that my tech Dan Zellman believes to be related to caps on the audio...

replies: 5 views: 934
Avatar for WarmJetGuitar
WarmJetGuitar 6 days ago
Avatar for alloysound

OK this is freaking me out - with music playing and the monitors cut, I hear music coming from my Vari Mu... like there's a...

replies: 22 views: 2,556
Avatar for Matt Syson
Matt Syson 6 days ago
Avatar for griploc_1981

Hi GEARSLUTZ I own a brand new tube tech cl1b compressor and is not working when the compressor is engaged. When bypassed the...

replies: 42 views: 7,161
Avatar for Matt Syson
Matt Syson 6 days ago
Avatar for salomonander

Hey there, another question if you guys dont mind. I need to clean these alps rotary switches. now, the hifi freaks seem to...

replies: 7 views: 342
Avatar for salomonander
salomonander 6 days ago
Avatar for TequilaKez

So you'll have to forgive my terminologies here, as I've kind of stumbled into all this on a journey of discovery, so I'll likely...

replies: 29 views: 734
Avatar for TequilaKez
TequilaKez 6 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...

replies: 538 views: 355,838
Avatar for play.exe
play.exe 6 days ago
Avatar for recordinghopkins

Tonight the 17v +/- lights went out on my power supply. I have yet to remove it from the rack, but I was curious to see if anyone...

replies: 159 views: 30,423
Avatar for Jim Williams
Jim Williams 6 days ago


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