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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: 71 views: 91,797
Avatar for Timo Pascal
Timo Pascal 12 hours ago
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: 1,094 views: 482,752
Avatar for ulysses
ulysses 4 weeks ago
Avatar for gabriel1

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

replies: 16 views: 44,014
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: 32,822
Avatar for Aniol1349
Aniol1349 10th June 2017
Avatar for deethefur888

Hi! I just bought Korg Microkorg s in Japan. It use 9v power adapter which originally meant to be used for Japanese socket which...

replies: 2 views: 487
Avatar for deethefur888
deethefur888 2 hours ago
Avatar for merseymale

Hi! I used to own the line 6 DM4 distortion moddler, Years ago and I eventually modded it (I never had an expression pedal) to...

replies: 11 views: 1,145
Avatar for S_mask
S_mask 3 hours ago
Avatar for taarak

Hello, I don't know how to formulate an objective question for this, and it may be already answered, so please say to me if...

replies: 30 views: 984
Avatar for slutter
slutter 3 hours ago
Avatar for Timo Pascal

Hi, I'm looking for the Service Manual for the FOSTEX 450 Mixer. I can find it as a download for 45,- $ but I don't have the...

Timo Pascal
replies: 1 views: 245
Avatar for Radardoug
Radardoug 7 hours ago
Avatar for victorianaylor

LR16 PROBLEMS hì folks I have owned the LR16 for several years without any major issues until now. When powering up, the...

replies: 0 views: 180
Avatar for victorianaylor
victorianaylor 8 hours ago
Avatar for frankthefunky1

Good day everybody. I own an Akai MPK88 midi controller. Three keys have problems hitting full velocity. These particularly...

replies: 15 views: 2,895
Avatar for Orson Maxwell
Orson Maxwell 14 hours ago
Avatar for Jarjar

Hi all, I just bought a 160X that needs a new compression ratio pot. Anyone know a source for these or an equivalent part...

replies: 4 views: 694
Avatar for Jim Williams
Jim Williams 15 hours ago
Avatar for Dronomite

Hi. I have a problem with the gain control on my Axxe. When I bring the Gain slider up, a tone is also rising, like a hold tone....

replies: 1 views: 682
Avatar for Dronomite
Dronomite 19 hours ago
Avatar for Amsoily

Ok, I'm going to Steal & Do it Myself Optical Compressor. Enclosure 2x Aphex 1404 2x Parmer Reamp...

replies: 0 views: 429
Avatar for Amsoily
Amsoily 1 day ago
Avatar for tourtelot

If anyone has one, knows a source, or knows of a DL, I'd appreciate it. I need to find the meter trimmers. PM me please...

replies: 1 views: 657
Avatar for dfchandler
dfchandler 1 day ago
Avatar for 1337_De_Hard

Greetings Gear Slutz! This is my first post on these forums! I have been interested in key detection for some time, but...

replies: 1 views: 385
Avatar for Amsoily
Amsoily 1 day ago
Avatar for beatsnblunts

im looking for service help on a ua2192? Schematics or parts? Or LA based tech familiar with? UA just told me that they dont...

replies: 0 views: 423
Avatar for beatsnblunts
beatsnblunts 1 day ago
Avatar for RE201

A while back I came across a pair of mystery stuffed pcbs which seem to be some kind of (maybe) Pultec-like passive eq. What...

replies: 4 views: 520
Avatar for DrewE
DrewE 1 day ago
Avatar for samwolfson

Hey all, I'm beginning research into the process of repairing and refurbishing a tube amplifier I bought at a local guitar...

replies: 3 views: 429
Avatar for tchgtr
tchgtr 1 day ago
Avatar for atharanic

Hi! Need help. One of my M1 Active 520 SCREAMS super loud and has the red ring when I turn it on. Fiddling with the volume...

replies: 3 views: 482
Avatar for Bushman
Bushman 1 day ago
Avatar for 386

I recently purchased a preowned Black Lion Audio Auteur Micro preamp (the original one not MKII). The previous owner has done a...

replies: 2 views: 536
Avatar for 386
386 2 days ago
Avatar for snod_donkey

Looking for some help on a few bits i have picked up.. Pulling my hair out trying to find anything on this gear.. I have just...

replies: 4 views: 2,126
Avatar for snod_donkey
snod_donkey 2 days ago
Avatar for kinganalog

Hey everyone ,Im looking for a pdf or photocopy of a 1975 MCI jh-16 (non quior) tape machine . If anyone has any ideas who might...

replies: 12 views: 1,262
Avatar for Jarjar
Jarjar 2 days ago
Avatar for iaw1978

Anyone have an English version of the link...

replies: 0 views: 500
Avatar for iaw1978
iaw1978 3 days ago
Avatar for waveterm

Hi, does anyone know what model and make the dual concentric pot for input/output level is used in the Aphex 9651 Expressor...

replies: 5 views: 1,671
Avatar for musicfirst234
musicfirst234 3 days ago
Avatar for StormLord11

So I think the title is pretty self explanatory.. anytime I hit a key, any key, on my D50, it plays at full velocity. I tried...

replies: 0 views: 665
Avatar for StormLord11
StormLord11 3 days ago
Avatar for Mablonowski Jarc

I´ve found an old Dynacord ADS at my workplace and I wondered what this thing would sound like. So I tried to power on - and...

Mablonowski Jarc
replies: 6 views: 1,907
Avatar for Dronomite
Dronomite 3 days 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: 81 views: 22,352
Avatar for Lorenzop
Lorenzop 4 days ago
Avatar for thechrisl

I have a bunch of decade + old Tripp-Lite Isobar surge protectors in my gear collection. As far as overall quality goes, they...

replies: 4 views: 586
Avatar for thechrisl
thechrisl 4 days ago
Avatar for Santiago

Hi, I have had for a while a Ross distortion pedal (the early tan version made in the US) that I like a lot, as it can go from...

replies: 0 views: 492
Avatar for Santiago
Santiago 5 days ago
Avatar for synthophile

Hi, I desperately need some basic information from a guy who have access inside of Kirovsky RITM 2 synth or at least know it...

replies: 1 views: 564
Avatar for synthophile
synthophile 5 days ago
Avatar for synthophile

Hey there! (Jump to Current situation for escaping boring parts) Recently I bought a soviet famous Kirovsky's РИТМ-02...

replies: 3 views: 735
Avatar for synthophile
synthophile 5 days ago
Avatar for MainTime

Hello, Silverstone wrote that it's possible to make a nice Di Box, which is used on Nashville studio, based on WE 111C ...

replies: 91 views: 11,925
Avatar for 12ax7
12ax7 5 days ago
Avatar for electronicmusic

Does anyone know what would cause this behavior? There is no audio in the signal path.

replies: 2 views: 731
Avatar for electronicmusic
electronicmusic 5 days ago
Avatar for synthophile

DO NOT PANIC! The whole topic is about just 1 pin. Hi everyone. I've got a Roland SPD-S 9 sampling drum pad which the owner has...

replies: 1 views: 744
Avatar for synthophile
synthophile 5 days ago
Avatar for Transmutant

Mixer mod


Hi I have a Soundtracs 32/4/2 mixer, not used at the moment but still a good unit. Just feel it's a bit lifeless... I'm going to...

replies: 59 views: 1,583
Avatar for Transmutant
Transmutant 6 days ago
Avatar for Mr Q

Hi folks, I imagine i have a multiway cable with DB25 Tascam pinout at both ends. This cable will work for both analog as...

Mr Q
replies: 1 views: 627
Avatar for Mr Q
Mr Q 6 days ago
Avatar for mexicola

Just saw this while ordering parts on mouser today LME49710NA/NOPB Texas Instruments | Mouser Same for the 49720. Sigh :(

replies: 57 views: 11,764
Avatar for Brian M. Boykin
Brian M. Boykin 6 days ago
Avatar for jennabowen

I have large number of OST files that I want to convert into Outlook PST file. Is there any solution available to convert...

replies: 2 views: 752
Avatar for dayanajoy
dayanajoy 1 week 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: 23 views: 8,191
Avatar for chrisdee
chrisdee 1 week ago
Avatar for kroegermusic

Hey Everyone, I'm wondering if someone could tell me where I can source the Old School Output gain knobs that Brent Used on...

replies: 2 views: 960
Avatar for kroegermusic
kroegermusic 1 week ago
Avatar for aaeronn

Soooooo, Both amps in my ASP8s developed the same failure within a few months of each other - the woofer pulses/thumps even...

replies: 40 views: 9,133
Avatar for MikeInOttawa
MikeInOttawa 1 week ago
Avatar for CRK

For some reason when slaving the Roland CR 8000 to an external DIN Sync clock, I get a hum out of the output jack. When clocking...

replies: 3 views: 750
Avatar for CRK
CRK 1 week ago
Avatar for soundrick

I have seen some of you guys are members of GroupDIY as well.... I have tried to register on this site with ZERO success. Is...

replies: 38 views: 5,157
Avatar for elcct
elcct 1 week ago
Avatar for bass man

Hi I have 3 gefell pm 750 mics . Two of them sound the same and the third one is much louder (like 10 db) and has more bass ....

bass man
replies: 8 views: 9,561
Avatar for chthoniangod
chthoniangod 1 week ago
Avatar for gearstudent

Hello, There are small diaphragm condenser mics (like the DPA 4006) that are designed specifically to be omni. They don't even...

replies: 12 views: 741
Avatar for legato
legato 1 week ago
Avatar for Explodey

Hi folks, a few of you might remember the audiotape scratching device that I built a year or so ago. For those of you who don't,...

replies: 17 views: 1,334
Avatar for Jay Rose
Jay Rose 1 week ago
Avatar for mattlessley

Hey guys, first post here so forgive me if this is the wrong place. I have 8 channels of toft atb channel strips that i would...

replies: 0 views: 699
Avatar for mattlessley
mattlessley 1 week ago
Avatar for dotted8

Hi, I have a problem with my Sp 12 turbo. Worked fine for years. Now, after booting up, the display shows a non turbo version....

replies: 1 views: 588
Avatar for Cozmik Prod.
Cozmik Prod. 1 week ago
Avatar for username

I know you can raise a mics impedance by putting a resistor across (or in series with I believe) pins 2 and 3.. is there a...

replies: 19 views: 10,375
Avatar for Richard Crowley
Richard Crowley 1 week ago
Avatar for Destitute

Hey all, first off sorry if I've posted this in the wrong place. So, I have a Fender Champion 40, it's a solid state guitar...

replies: 7 views: 718
Avatar for tINY
tINY 1 week ago
Avatar for Mattderose120

I recently picked up a DBX 160x and recapped it with some Nichicon FG and HE caps as well as replacing the power transformer....

replies: 7 views: 873
Avatar for Brian M. Boykin
Brian M. Boykin 1 week ago
Avatar for tomatoKetchup

Hi, I know, another thread on the topic... Well, my M1K has an issue with one voice, but it isn't like anything that was...

replies: 2 views: 545
Avatar for tomatoKetchup
tomatoKetchup 1 week ago
Avatar for gkmaia

Is there anyone here who upgraded their MC50 floppy drive to one of those new SD floppy emulators and want to sell the old drive?

replies: 0 views: 670
Avatar for gkmaia
gkmaia 1 week ago
Avatar for sprawl

Does anybody have a service manual for the CMLabs motormix or motormate? I am trying to find out what kind of buttons were used...

replies: 1 views: 617
Avatar for vintagelove
vintagelove 1 week ago


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