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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: 66 views: 83,002
Avatar for Philbo King
Philbo King 11th August 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: 1,071 views: 452,910
Avatar for gyraf
gyraf 3rd August 2018
Avatar for gabriel1

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

replies: 16 views: 39,790
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: 28,677
Avatar for Aniol1349
Aniol1349 10th June 2017
Avatar for SpaceShipStudio

Greetings Collective Powers of Knowledge, I am trying to save this ole guy from the trash bin, If anybody has any leads on the...

replies: 3 views: 1,334
Avatar for Yug
Yug 1 hour ago
Avatar for Samando

Does anyone know if the danish NTP brand has got any led VU-meters? All I keep finding are real nicelooking PPM meters, like...

replies: 4 views: 284
Avatar for jaddie
jaddie 6 hours ago
Avatar for Patrick H

Hi all. Im having an ongoing issue with noise. This noise happens randomly and occurs for 5-10 seconds at a time - 2-10 times a...

Patrick H
replies: 18 views: 377
Avatar for brianroth
brianroth 9 hours ago
Avatar for SoothsayerRec

First of all, sorry for the inconvenience, I have nowhere else to go and I'm pretty confused. I have a Warm Audio Wa-12 mic...

replies: 5 views: 227
Avatar for SoothsayerRec
SoothsayerRec 16 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: 1 views: 232
Avatar for wrgkmc
wrgkmc 19 hours ago
Avatar for Teej

I need to get a couple IM07TS relays for a project and mouser is out of stock. I'm totally green to sourcing parts for a build...

replies: 5 views: 411
Avatar for wrgkmc
wrgkmc 20 hours ago
Avatar for daniel.mixer

Hey guys, Just picked up a Sony AC-148A phantom power supply off eBay, and I'm having some over-voltage issues. Measuring...

replies: 5 views: 1,865
Avatar for knave101
knave101 21 hours ago
Avatar for MYN

I built the Poctop D87 from VintageMicrophonePCBKit and I think it sounds pretty great. My one criticism is that I'd like it to...

replies: 61 views: 1,183
Avatar for Jim Williams
Jim Williams 22 hours ago
Avatar for gradivus

Curious what you seasoned guys do to safely discharge capacitors and if you use one method or several depending on the size and...

replies: 73 views: 1,898
Avatar for nosebleedaudio
nosebleedaudio 1 day ago
Avatar for szegedin

Is that possible, on a 'moddable' mic? There are mics I like, but would trade headroom for sensitivity if that was feasible,...

replies: 4 views: 369
Avatar for szegedin
szegedin 1 day ago
Avatar for elgordito

Hi everyone, I want to switch between two sources to my balanced monitors (L/R). My two sources are also balanced, my...

replies: 15 views: 333
Avatar for Matt Syson
Matt Syson 1 day ago
Avatar for Mr. Bars

Hello friends, I have a lot of various high-end analog gear in my studio and in most of its manuals in adjustment and...

Mr. Bars
replies: 4 views: 271
Avatar for marinedalek
marinedalek 2 days ago
replies: 15 views: 571
Avatar for ruffrecords
ruffrecords 3 days ago
Avatar for Alexander_Music

Hello ! I want to build a pair of very good studio monitors, something like: Barefoot mm 35 Kii Three Dutch & Dutch...

replies: 11 views: 571
Avatar for RyanC
RyanC 3 days ago
Avatar for Brian M. Boykin

I’m trying to ballpark how many amps a new power supply needs to be for my console after all the new opamps are in. So for an...

Brian M. Boykin
replies: 5 views: 282
Avatar for Cozmik Prod.
Cozmik Prod. 3 days ago
Avatar for slutter

Hi All, I've inherited an old school Yamaha EM-200 with a pair of S0140H cabinets. Looks SUPER cool. I've reached out to...

replies: 1 views: 222
Avatar for slutter
slutter 3 days ago
Avatar for thermal

I am trying to replace the cable/minijack assembly on my Beyerdynamic DT990's and have obviously resoldered the thing...

replies: 3 views: 229
Avatar for thermal
thermal 3 days ago
Avatar for Papabear

hello i recently bought a jx305 really cheap and im in the process of repairing it now. the problem is that some of the push...

replies: 5 views: 1,264
Avatar for Mandala69
Mandala69 3 days ago
Avatar for dfchandler

Anyone know what brand of fuse holder are used in the Scamp Power Supply? I need one. Thanks. Denny

replies: 4 views: 294
Avatar for dfchandler
dfchandler 4 days ago
Avatar for David Kulka

A friend tells me that people are starting to use standard CAT-5 data cable for balanced analog and digital audio wiring, with...

David Kulka
replies: 99 views: 21,113
Avatar for Muser
Muser 4 days ago
Avatar for farmpedals

Howdy, I'm interested in building a neve di to fiddle around with... has anyone found a parts layout or schematic for their...

replies: 12 views: 2,051
Avatar for elgordito
elgordito 4 days ago
Avatar for Heph333

I just picked up a N.O.S Schecter Hellraiser HR-100-H head. It's brand new in box, never been assembled. Complete, except for the...

replies: 2 views: 273
Avatar for Heph333
Heph333 4 days ago
Avatar for Pomello

I need schematics to fix this unit.Thanks in advance

replies: 10 views: 2,779
Avatar for JoeCT
JoeCT 5 days ago
Avatar for monstermusiker

Hi there! I have an Alesis AM 62 tube mic with the gt psm1 powersupply. Both have 6-pin xlr connections and I am missing that...

replies: 3 views: 1,532
Avatar for jewell
jewell 5 days ago
Avatar for grs

When I turn on my Roland SH-101 the Key Transpose LED flashes quickly then the Hold LED/function comes on and will not turn off....

replies: 0 views: 223
Avatar for grs
grs 5 days ago
Avatar for J.F.K

How much does an Amek recall with 56 rn channelstips weigh? I have searched everywhere and can not find any number for what...

replies: 6 views: 1,446
Avatar for Matt Syson
Matt Syson 5 days ago
Avatar for credo23

Hey guys! I just bought an Alesis Quadraverb+ and had some fun with it yesterday (perfectly working). After restarting it...

replies: 4 views: 337
Avatar for Skip Burrows
Skip Burrows 6 days ago
Avatar for drezz

Hi, I accidentally reversed the polarity on my universal PSU and plugged it into my holy grail reverb pedal and now it does not...

replies: 8 views: 6,023
Avatar for Moulin
Moulin 6 days ago
Avatar for mightyeskimo

Hi All! I'm wondering if I can sample a signal with a frequency just outside my o-scopes listed bandwidth? The signal should...

replies: 9 views: 399
Avatar for mightyeskimo
mightyeskimo 6 days ago
Avatar for DomiBabi

I hope I’m posting this in the right area. So, anyone eyeing this lately? Looks like Korg is taking consult requests and...

replies: 3 views: 250
Avatar for tINY
tINY 6 days ago
Avatar for suburbanbeat

Hi all. Got my solder iron, practiced a bit, and am getting ready to make the GliGli mod for the Prophet 600, which just involves...

replies: 7 views: 505
Avatar for Richard Crowley
Richard Crowley 1 week ago
Avatar for Richard Crowley

Dave Jones on the EEVblog made a video of his quest to discover why there is background noise in his Rokit 6 active monitor...

Richard Crowley
replies: 31 views: 878
Avatar for ruffrecords
ruffrecords 1 week ago
Avatar for teleharmonium

Are there some guidelines about the effects of various amounts of negative feedback in preamp circuits that anyone has or can...

replies: 30 views: 895
Avatar for teleharmonium
teleharmonium 1 week 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: 3 views: 1,879
Avatar for Sound Techniques
Sound Techniques 1 week ago
Avatar for cat alley

Hello, Connectors are provided on the input PCB of the Soundcraft Series 5 for wiring input transformers to the Hi-Z and XLR...

cat alley
replies: 7 views: 668
Avatar for Jim Williams
Jim Williams 1 week ago
Avatar for autodefe

Hi! I bought a second hand G16 Dolby C version, and it had the typical slow rewind problem. So i decided to clean the reel...

replies: 1 views: 291
Avatar for wrgkmc
wrgkmc 1 week ago
Avatar for pridix

Hi everyone! I'm a PhD in acoustics, particularlly in the subjective perception of room acoustics. So I know quite a bit about...

replies: 7 views: 340
Avatar for charbot
charbot 1 week ago
Avatar for Brian M. Boykin

I’m gearing up to go through my Ashly SC50’s and 55’s. Plan is to use a 4136 socket adapter and place 2 LME49720’s in the...

Brian M. Boykin
replies: 7 views: 340
Avatar for Brian M. Boykin
Brian M. Boykin 1 week ago
Avatar for jimkarl

Have this deck and rewind is very sluggish, even stops. Sometime, need to manually spin the flywheel to get it even going. Only...

replies: 2 views: 311
Avatar for jimkarl
jimkarl 1 week ago
Avatar for Gonecat

Hello all, I have converted a 60's tube turntable into a guitar amp and am adding a number of effects to it (that will go in...

replies: 8 views: 468
Avatar for samwinston123
samwinston123 1 week 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: 29 views: 3,068
Avatar for M.Retra
M.Retra 1 week ago
Avatar for jimkarl

Here's the back story: Unit powers on but no display or any other light indicators other than power. Power supply board section...

replies: 24 views: 473
Avatar for jimkarl
jimkarl 1 week ago
Avatar for Gonecat

Hi All, I've been building some bandpass filters and am using the following method to check out their true frequency range in...

replies: 7 views: 520
Avatar for ruffrecords
ruffrecords 1 week ago
Avatar for optofonik

If I make a balanced (sandwiched elements) piezo and plug it into the mixer's preamp do I still need some sort of dedicated...

replies: 8 views: 443
Avatar for optofonik
optofonik 1 week ago
Avatar for niklasni1

I've just got one of those BYOC guitar pedal kits (the ping pong echo). I'm planning to use it exclsively with synths so I'll be...

replies: 2 views: 338
Avatar for Jim Williams
Jim Williams 1 week ago
Avatar for loji

I'm looking to add switches to a unit with pots. they are 50k linear taper with a center tap (for 0db) The original is...

replies: 14 views: 552
Avatar for Matt Syson
Matt Syson 1 week ago
Avatar for PhantomBox

Hi. I have a SSL XLogic alpha VHD 4-channel preamp with defect phantom power. I know from other forums that these mic pres...

replies: 7 views: 1,575
Avatar for psykostx
psykostx 1 week ago
Avatar for HyKlas

Hello all. I recently acquired a Mackie HRS120 subwoofer and the passive radiator is shot. Torn surround, mangled cone, all that...

replies: 6 views: 510
Avatar for ToddF
ToddF 1 week ago
Avatar for JamieOxford

Has anyone here built a 610 preamp before? Or is there a company in the deepest darkest corner of the internet making them? I...

replies: 32 views: 13,831
Avatar for JamieOxford
JamieOxford 1 week ago
Avatar for macmini

I'm using a Groove Tubes CL1s Compressor/Limiter in studio and I want to calibrate the tubes of the CL1s ... so I need the right...

replies: 9 views: 2,367
Avatar for Crash
Crash 1 week ago


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