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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: 115,161
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MicroSonic 2 weeks 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: 1,141 views: 538,402
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msbettyhunt 16th June 2020
Avatar for gabriel1

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

replies: 19 views: 53,801
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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: 42,895
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msbettyhunt 24th March 2020
Avatar for Robert Machine

Can someone tell me how to bias a Ibanez TSA15H amp with a multimeter? Itb as 2 - 6V6GT tubes. I had to replace the bias trim...

Robert Machine
replies: 6 views: 1,965
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zulumonk 26 minutes ago
Avatar for Skeltonmfc

Hi guys Could anyone recommend the right type of relay I could use to make a speaker switch to switch between 2 amps and 1...

replies: 6 views: 134
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Thomas W. Bethe 1 hour ago
Avatar for RockTheRoll

Hello. Appreciate the help. How would I go about attaching a new battery to the board if the +/- contact flaps have broken off?...

replies: 3 views: 2,989
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Thomas W. Bethe 1 hour ago
Avatar for MatrixClaw

I want to replace all the stock knobs on my SCA preamp with ones that fit the "original" design of the pres I have... ...

replies: 30 views: 9,528
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makinrecords 2 hours ago
Avatar for raid

I'd like to replace all of the pots in my Pro-One for higher quality ones, but it's got me thinking. Since this synth has pots...

replies: 0 views: 69
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raid 8 hours ago
Avatar for Stumpy the Rook

Hello, everyone, I haven’t been on a forum since the Metro Amp, Harmony Central days long past. Been a lurker here for a while,...

Stumpy the Rook
replies: 11 views: 240
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Stumpy the Rook 9 hours 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: 56 views: 18,155
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rp3703 11 hours ago
Avatar for Jeff D.

Hi Gurus, I've got an ATR100 with a hum problem. There is no hum at all when it's in input. But when I switch to repro I hear...

Jeff D.
replies: 8 views: 1,116
Avatar for blcstudio
blcstudio 13 hours ago
Avatar for markblockjzz

I have narrowed my choice down to these 2 pre-amps: Forssell, and John Hardy. Of the many great clean pres out there, these 2...

replies: 5 views: 802
Avatar for markblockjzz
markblockjzz 13 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: 6 views: 1,270
Avatar for rfreeman
rfreeman 13 hours ago
Avatar for Statherian

Hello I have a Redco Bantam patch, with DB25. I seem to have a issue with one channel where Ground and Cold are touching each...

replies: 2 views: 129
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Statherian 15 hours ago
Avatar for Gorquin

Hey all, I need suggestions and what to purchase. Price range $500-$600 and probably used to get the most bang. I played...

replies: 2 views: 98
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Gorquin 21 hours ago
Avatar for audio6

I hope I landed at the right place. I have some machine shop experience and would like to make my own tape transport for NAB...

replies: 3 views: 133
Avatar for gyraf
gyraf 1 day 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: 179 views: 22,133
Avatar for Jesse Skeens
Jesse Skeens 1 day ago
Avatar for brijem

I know there are endless threads about the ART VLA Pro II and the various mods possible, but that's part of the problem - too...

replies: 1 views: 864
Avatar for GSStudio
GSStudio 1 day ago
Avatar for Xlat808

My Behringer Neutron was working fine for a few days, then I tried some wild FM patches on it, and now my high pass VCF doesn't...

replies: 2 views: 125
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Xlat808 1 day ago
Avatar for xeper

Hi, Couple weeks ago I bought an old Fernandes Stratocaster guitar (80's I think) and my friend who repairs guitars took care...

replies: 5 views: 9,927
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roseblood11 1 day ago
Avatar for Spano

like id like to see some diagrams of existing filters, understand what they do what they mean experiment and see what...

replies: 1 views: 142
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gyraf 1 day 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: 1 views: 277
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zamproject 1 day ago
Avatar for Chadr

Hello, I need some advice regarding a couple issues I’m having with my console. Console: Soundcraft Sapphyre 36...

replies: 4 views: 250
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Chadr 1 day ago
Avatar for vintagefreak

Hi to all Gearslutz, not sure if i am posting in the right section , but here it comes: I can hear a very tiny soft sound...

replies: 2 views: 1,486
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vintagefreak 2 days ago
Avatar for sonotor

hello I have a sony mxp 29 mixer and I would like to add a direct out on each channel! Could you help me to pick the signal...

replies: 26 views: 6,717
Avatar for bagomusic
bagomusic 2 days ago
Avatar for crackerbarn

I will try my best to keep this as short as possible but I am in need of patchbay routing help. Here is my gear: 24(24 in and...

replies: 1 views: 127
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ripple_fx1 2 days ago
Avatar for Alexsaitek

Hello everyone:), it is my first post, although I have been looking for information in this forum I have several questions...

replies: 1 views: 270
Avatar for rez
rez 2 days ago
Avatar for ian1101

I just bought 2 Soundcraft Delta mixers, a 24 channel and an 8 Channel. The 24 channel did not come with a power supply, and the...

replies: 21 views: 12,247
Avatar for White Falcon
White Falcon 2 days ago
Avatar for bobemmett

Does anyone have any contact info or know who the current techs are at east west?

replies: 0 views: 131
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bobemmett 2 days ago
Avatar for Saudade

Hi there, I have had this mic for maybe 20 yrs. Recently it started having this noise (click links to hear). There is still...

replies: 5 views: 228
Avatar for gyraf
gyraf 3 days ago
Avatar for vashuba

Hey- So I doing a project and am ripping apart a Hotone pedal and want to swap the footswitch with a special switch. I contacted...

replies: 4 views: 155
Avatar for Rick Dalton
Rick Dalton 3 days ago
Avatar for craigmorris74

I have an unbalanced piece of hi-fi gear that I would like to use in the studio. Could I add transformer inputs and outputs to...

replies: 31 views: 797
Avatar for enginefire
enginefire 3 days ago
Avatar for Andywidmann

Hi. Im having a power issue with my BLUE Robbie. Let me preface this by saying that I am not very knowledgeable on the subject,...

replies: 10 views: 634
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jcrist 3 days ago
Avatar for daveybasso

good lord ive never heard such a close, intimate vocal in my LIFE? close did they have the mic to her? was it down her...

replies: 9 views: 382
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cyjanopan 3 days ago
Avatar for Starbucksstew

Greetings! Do any of you remember the brand/maker of the guitar pedal hook and loop that was designed exclusively for the bottom...

replies: 1 views: 120
Avatar for Cabirio
Cabirio 3 days ago
Avatar for DavidLMills

Hi there, I had a quick question about VU Meters and wiring. I know there have been a few posts about this but couldn't find a...

replies: 25 views: 4,492
Avatar for roger
roger 4 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: 491 views: 333,203
Avatar for ardis
ardis 4 days ago
Avatar for shadebug

Preamble Hey, first time posting so let me know if I'm in the wrong place but I recently bought a D310 off reverb. It was the...

replies: 2 views: 166
Avatar for Dr. Jule
Dr. Jule 4 days ago
Avatar for emm853

Hi Everyone, i'm having big issues with my rocktron Patchmate (the Bob Bradshaw version). The machine starts up and the...

replies: 42 views: 1,147
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emm853 4 days ago
Avatar for mortimersnerdy

So, I have an original power supply that has a non original input connector, need the original connector to match up with new...

replies: 6 views: 171
Avatar for jaddie
jaddie 4 days ago
Avatar for soundbeing

Hey gang, my tech has localized the issue I have with one channel of my AKG BX20e. It seems to be a common issue in these units....

replies: 0 views: 138
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soundbeing 4 days ago
Avatar for stevo991

I would like to start a thread for all of you slutz out there that has any info or schematics on AMEKS BIG, Recall, and 501 by...

replies: 38 views: 5,108
Avatar for pinkpanter
pinkpanter 4 days ago
Avatar for plazareff

Hello All, After many exchanges with SSL support and before making a warranty claim, I thought it might be useful to share my...

replies: 3 views: 984
Avatar for purplenoise
purplenoise 4 days ago
Avatar for BartR

I'm working on a project and as many, as example I got the Schoeps CMC3-5 schematics to work with. I'm wondering what are the...

replies: 2 views: 182
Avatar for kirkus
kirkus 4 days ago
Avatar for gerard68

My first post here, so I don't know if this is the right place to ask, but here it is. As the title says; I got one channel with...

replies: 4 views: 3,519
Avatar for copperline
copperline 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: 0 views: 126
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diamondjim 5 days ago
Avatar for hotrod79

Hi all, I have a question about a schematic symbol and I am hoping someone could enlighten me about it. The drawing shows digital...

replies: 3 views: 193
Avatar for Rick Dalton
Rick Dalton 5 days ago
Avatar for Ianneve

I just did my first 2. I'm no longer a Calibrating Virgin. I'm running Samplitude and I'm running a sine wav out at -16 and I...

replies: 28 views: 3,743
Avatar for Bob Olhsson
Bob Olhsson 5 days ago
Avatar for WFTETC1

Hello, can someone tell me how's this EQ called and which brand(unit direct under the C1), would be very nice to know, you guys...

replies: 2 views: 592
Avatar for Soundclass
Soundclass 5 days ago
Avatar for mungu

Hi all - I am doing the final setup steps of my Sound Skulptor CP4500 and I am a bit stuck. Full schematic is here:...

replies: 1 views: 171
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mungu 6 days ago
Avatar for polaris26

Hello all - I just acquired a Roland SDE-3000 and hoping someone here can help me with a mystery before I start to try to...

replies: 1 views: 156
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polaris26 6 days ago
Avatar for dreadbizniz

If you require schematics / user manual for the EMT 258 noise filters i am currently racking a pair and have this data document...

replies: 5 views: 2,284
Avatar for LuizCamargo
LuizCamargo 1 week ago
Avatar for hotrod79

Hi all, this is my first thread and I am hoping to find a few who venture as far as I do when it comes to taking care of my gear....

replies: 6 views: 408
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hotrod79 1 week ago


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