Yamaha CS 80 Autopsy

video upload by Really Nice Audio

"As legend has it, when the Fender Rhodes was turned on the CS-80 blew up! Let us investigate what has happened to the Yamaha CS-80.
This CS-80 belongs to Pete Townshend and is housed at the University Of West London.

https://www.uwl.ac.uk/study/study-fac..."

EMS Synthi AKS

Note: Auction links are affiliate links for which the site may be compensated.

via this Reverb listing

Pic of the boards below.

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SYNTHESIZER MAINTENANCE + DISCOLORED KEYS RESTORATION / NOVATION K-STATION DISASSEMBLY

video upload by Robert Vadney

"diving into my 23 years old K-STATION for a thorough cleansing"

Linn 9000 Integrated Digital Drum Machine (FORAT)

Note: Auction links are affiliate links for which the site may be compensated.

via this Reverb listing

Pics of the inside below.

The legendary Linn 9000 integrated digital drum machine & sequencer. This one has been serviced and overhauled by Bruce Forat. Upgraded power supply, OS, floppy disk emulator to read SD cards, new battery etc. This one includes a very rare, massive sound library from Bruce that cost a pretty penny. This thing sounds incredible. A truly inspirational piece to work with. These machines are notoriously temperamental. Occasionally you have to re-seat a sound card. Other than that it works perfectly.

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Pete Townshend's Yamaha DX1 Repair

video uploads by Really Nice Audio

"Join me in this passive examination of a faulty SMPS from a Yamaha DX1.
It belongs to Pete Townshend and is housed at The University of West London.
https://www.uwl.ac.uk/study/study-fac...

Disclaimer:
Working with mains voltage is extremely dangerous.

Music from my forthcoming ATMOS single Moon Tides written in collaboration with Dan Abel.
https://open.spotify.com/artist/27hh3..."

Inside Physical Modeling | The VL1 Synth Revolution - Ep.1/4

video upload by Doctor Mix

"Welcome to the first chapter of my deep dive into physical-modeling synthesizers, proudly sponsored by the legends at Audio Modeling ❤️ 👉 https://audiomodeling.com/

🧠 Learn more about TEControl and their awesome synth accessories:
👉 https://www.tecontrol.se/products

🎹 In this episode:
I crack open my new vintage Yamaha VL1
Upgrade it with a USB floppy emulator
Restore my original presets with synth wizard Chris Poacher
Reveal never-before-heard stories from Manny Fernandez — legendary synth developer and VL1 sound designer!

00:00 🔸 Intro & series overview
00:25 🎹 Why the Yamaha VL-1 is legendary
00:56 💾 Installing the USB-floppy emulator
01:55 ⚠️ First power-on → 'Bad Disc' errors
02:21 🆘 Synth guru Chris Poacher to the rescue
02:55 🔧 Cable swap & preset recovery
03:35 ✅ VL-1 lives! First sound test
04:09 🧠 Physical-modeling 101
05:50 🗣️ Manny Fernandes on programming the VL1
06:43 🌪️ Dancing on the edge of chaos or collapse
07:54 ⭐ “Floboe” – my signature patch demo
09:41 🔊 Analoque Synth sounds on the VL1
10:24 🎺 Shakuhachi + other VL-1 favourites
11:06 🎤 TEControl Breath-controller and accessories rundown
11:24 ✈️ Next-episode teaser – trip to Palo Alto

Yamaha A4000 Professional Sampler SN (21)QO01136

Note: Auction links are affiliate links for which the site may be compensated.

via this Reverb listing

Pics of the inside below.

"In good condition,with ide hard drive,and ram expansion,capacity shown in photos. Includes power cable. Back panel is missing expansion cover,and as is common on these models, one or two of the rotary encoders(data knobs) can be finicky."

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Korg MS-04 Modulation Pedal

Note: Auction links are affiliate links for which the site may be compensated.
video upload by Edward Jones

via this eBay listing

Pics of the inside below.

"For sale we have the very rare Korg MS-04!

These don’t come up for sale very often.

This is a modulation expression pedal.

It features an LFO (Triangle or Square), a noise generator, and a "bender" type control voltage output, controlled by this sturdy foot switch.

The pedal controls the magnitude of the CV output of the LFO, not the frequency of the LFO.

There is an upward facing LED on the pedal body that shows you the speed of the LFO.

This is in honest to goodness as new condition. The internal date stamp indicated manufacture to be the 6th week of 1980 (which matches the manufacturing period).

There is some light dust on the pedal after being in storage for 20 years, and I haven't cleaned it off. The only blemish is on the front plate indicating model number, where a price tag was placed in the late 1990s when it was purchased by the current owner. I haven't attempted to de-goo it.

One side appears to still have the original protective plastic on it.

All components are original! The tested capacitors have held their values, and the pots were all clean. It has been stored with no batteries inside, and the battery bay, as you can see, is clean as a whistle."

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Rare ! Studio Electronics Midimoog, original RA Moog board, serviced. SN AA-0900

Note: Auction links are affiliate links for which the site may be compensated.

via this Reverb listing

"For sale, a very rare exemple of the famous Minimoog racked by Studio Electronics. This is not a clone, this is the real R.A. Moog board mini in a rack ! It will be fully serviced prior to sale."

Pics of the boards below.

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Kurzweil K2000 Main Engine Board

Note: Auction links are affiliate links for which the site may be compensated.

via this Reverb listing

"This is a K2000 Engine / Main Board, Janis, No RAM but I'll leave the EPROM (OS 3.18J). Pulled from a working K2000."

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Akai S612 MIDI Digital Sampler + MD280 disk unit + 6 disks + rare 1.3 firmware

Note: Auction links are affiliate links for which the site may be compensated.

via this Reverb listing

"The first sampler from AKAI - 1985

4khz to 22khz frequency sampling (1 sec. to 8 sec.)

6 voices polyphony

Analog lowpass filter

In good cosmetic condition, with many light traces of rust on the cover, but all other parts are free form rust or humidity traces. Inside is perfectly clean.

Everything works perfect.

This unit have the rare custom Firmware 1.3 from Florian Anwander allowing multi slices, velocity to filter and amp + more.

Some of these features need to be loaded from disk at start, but this disk is missing.

However, the velocity functions are available

The sampler have also been modified with 6 individual outputs. It allows to output each slice to individual output, but also to pan each of the 6 voices individually.

The MD280 disk unit have a new belt and head cleaned

It comes with 6 rare QDD 2.8 inch sample disks, including original AKAI library disks.

Works on 220-240 AC"

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Eventide Harmonizer Model H949 SN A949-2872

Note: Auction links are affiliate links for which the site may be compensated.
video upload by ultralightbeam

"delay, flange, random processing on the H949 of a drum sample, a famous drum break"

Eventide H949 vocal demonstration

video upload by ultralightbeam

"Demonstration of an Eventide H949, fully serviced, of sale and the pitch control you have over audio."

via this Reverb listing

Pics of the inside below.

"This is fully serviced. All power supply large filter caps replaced, the ground connection from the molex a known failure mode has been tied permanently.

For H910 mode hit the 'algo' button and it will remove the 'deglitch'.

Memory chips, brand new, changed to ones that only run on 5v rail and not three different rails, they run much cooler, also when something goes wrong they don't get cooked. The early DRAMS used by eventide, those that were available were failure prone - the Personal Computer revolution quickly led to better DRAMS - which are deployed in this unit.

Electrolytic caps, tested, replaced for low ESR - top quality the best available

Better quality ceramic capacitors around DRAMS to drop noise floor to the lowest possible. They are mil-spec about £3.50 each for a tiny component and there are 10 of them.

Ripple checked for lowest noise performance possible

Tantalum where there should be tantalum - again the best.

Heatsink compound applied

A lot of the character of this unit comes from two factors; one the early digital use of memory chips to store the audio delay line with ultra fast bit slicing AMD bipolar processing chips and two the DBX companding (x3) - these really resolve the noise associated with early digital and improve signal to noise."

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*SERVICED* Linn LinnDrum LM2 w/ Parts & Paperwork

Note: Auction links are affiliate links for which the site may be compensated.

via this Reverb listing

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1971 Vintage EMS VCS3 Synthesizer

Note: Auction links are affiliate links for which the site may be compensated.

via this Reverb listing

"EMS VCS 3 II

A beautiful and original synth built in 1971

This is in incredible condition considering its age

Fully working condition with no issues"

Pic of the inside below.

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Jomox Mod FM D - Sounds and circuit dive

video upload by Maffez Synthmods

"Showing the different sides of the Jomox Mod FM D, including some inside pics and analogue/FM styles."

Inside a Jomox Mod FM D.

PWM Malevolent Modded and Turned Module

video upload by Maffez Synthmods

"Turned my PWM Malevolent into a module and modded it a bit: https://maffez.com/?page_id=5088"

Inside a PWM Malevolent.

Modified DIGIAC 4010 Logic Trainer SN 1007

Note: Auction links are affiliate links for which the site may be compensated.

via this eBay listing

This appears to be the first post to feature DIGIAC.

"This was originally a logic trainer for education but I re-purposed it as a logic source to experiment with hybrid analog/digital modular music synthesizers. I'm selling it because I no longer have a modular synth to use it with. It has been rebuilt with all new electrolytic capacitors, I/O switches and blue LEDs. Included is an assortment of multicolor patch cables that I made up with silicone jacketed wire and gold plated 2.5mm banana plugs. Mounted in a wooden enclosure it is self contained with a built-in power supply & clock generator. Size is 19"W X 17.5 "H so it fits nicely in a 19" rack 10U space. I setup a demo video of a dual decade up counter.

Logic modules included:16x JK flip flops, numeric keypad, multiple AND/NAND/OR/NOR/XOR gates, full adder, D/A converter, 1k bit addressable memory, comparator, one shot multivibrator, schmitt triggered buffer, 60Hz clock, dual seven segment decimal display, other miscellaneous functions including four I/O switches and a patchable 16 pin IC socket (nice if you want to add an additional IC or an interface cable).

Cosmetic condition: Fair to good with some scratches on the panel and damage to the wooden enclosure (see pictures).

Power source: 120VAC
Logic family: 7400 series 5V TTL"

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Linn LinnDrum LM2 with Midi

Note: Auction links are affiliate links for which the site may be compensated.
video upload by Richard Caceres

"Here’s a quick demo of a Linn Drum I recently serviced. I changed the internal save battery. In the video I show the different sounds, and show the sequencer. I also demo midi input with a Yamaha Reface CS keyboard as the midi controller"

via this Reverb listing

Pics of the inside below.

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Roland System-100m 1982

Note: Auction links are affiliate links for which the site may be compensated.

via this Reverb listing

SNs
112 951324
121 961186
130 941074
140 931420
150 961152

Pics of the inside below.

'I replaced all the din connectors and also replaced one of the exponential converter of the VCO 1 with the excellent PA726 as it had pitch stability issues. It has no influence on the actual sound vs the original. Just the pitch tracking is improved."

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Acidcode BassLine ML-303 DIY Project

Note: Auction links are affiliate links for which the site may be compensated.

via this Reverb listing

Pics of the inside below.

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