The EML Family of Synthesizers Catalog Brochure

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"This listing is a rare opportunity to buy printed materials that came in with one of the many rare and vintage synths we are currently preparing for sale."

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EML Electrocomp Electronmusic Manual for Composers Book Ad

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Electrocomp EML-400 XY Controller

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"This is a preliminary product description for the EML400 and XY controller that appears to have been sent out before the EML400 design was finalized, as the illustrations differ from the production models as well as the prototype we own. It’s a really cool piece of synthesizer history!

This listing is a rare opportunity to buy printed materials that came in with one of the many rare and vintage synths we are currently preparing for sale."

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26 Electrocomp EML-200 Facsimile Pad Blank Patch Sheets

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Electrocomp EML500 Catalog Brochure

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"This listing is a rare opportunity to buy printed materials that came in with one of the many rare and vintage synths we are currently preparing for sale."

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4/22/25 Soundforce S-LD + SSL 1660 + GenRad 1564-A + BLM Gate Seq + DSP 808 + MIDIVERB II + PV 1300

video upload by Cfpp0

"4/22/25 ElectroComp EML 200 + Synthetic Sound Labs 1660 + Analog Craftsman acVOKs + STG muSonics Vanilla Envelope + General Radio 1564-A + Blue Lantern Gate Sequencer + Soundforce S-LD + DSP 808 + Alesis MIDIVERB II + Peavey 1300

Testing out a used Soundforce S-LD module we just got. You can hear the cowbell and the maraca (there’s a switch on the back to choose the Linn toms or percussion). The other percussion is from the DSP 808 module, which is a similar sampled sound module, but with pitch control and voltage controls. The synthy kick drum is the General Radio 1564-A processing the S-LD kick drum. Its VU meter looks like it’s out of sync, but it’s just slow and getting pinned hard. The two drones that build up are from two ElectroComp EML 200 synthesizers. The synth lines are Synthetic Sound Labs 1660 The Matrix Algorithmic Composer through the Analog Craftsman acVOKS filter into the STG muSonics Vanilla Envelope. The reverb is preset 10 on the Alesis MIDIVERB II."

4/18-19/25 (tranq staccato) RYK 185 + Roland System 100m & TR-606 + (more listed in description)

video upload by Cfpp0

"4/18-19/25 (tranq staccato) RYK 185 + Roland System 100m & TR-606 + DSP 808 + MXR 136 + Paia 6740 + Alesis MIDIVERB II + ADR Pan Scan + Eventide H3000B

Nothing drones quite like the ElectroComp EML 200. Two EML 200 VCOs are running through its left mixer into its internal spring reverb into its right mixer into the ADR Pan Scan and the Alesis MIDIVERB II and Eventide H3000B (Cyclons). The synth is the RYK 185 sequencing five VCOs through three filters on the Roland System 100m, processed by the Pan Scan, H3000B, and MIDIVERB II, with LFOs modulating the filters and with manual wiggling of the envelopes. The claves is the RYK 185 gate output triggering the DSP 808 module, with spring reverb from the Paia 6740. The tom is from the Roland TR-606, squashed by the MXR 136 limiter, with a room reverb on the MIDIVERB II. As the TR-606 kick drum is faded in, it further squashes the already squashed tom. The other kick is the DSP 808, with a trigger from ALM Pamela’s New Workout inverted by the Ladik U-202."

EML Electrocomp Synthesizer Primer

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Electrocomp EML-101 Synthesizer Brochure

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Electrocomp EML-200 Synthesizer Brochure

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1/2/25 (melting) ElectroComp EML 200 plays ElectroComp EML 200

video upload by Cfpp0

"The range is switched at 0:25 seconds, which slows the melt."

Mystery Vintage Matrix Pump, Tim Smith DIY & Vintage EML

Pictured are a few interesting items for sale from Mike Berman. You can find them here.

I asked him if it would be OK to capture the pictures here as I've never seen the "matrix pump" before. He gave me the all clear. Note this is the first post to feature one. This is a rare piece of synth history.

All Mike knows about it follows: "For me, the nature of the Matrix pump and its affiliation with EML is pure speculation. I always assumed it to be, at best, an unfinished one-off. If you magnify the photo you can read the labels on the controls and they are intriguing. The multi-pin socket on the left side of the MP accepts the same plug that EML sequencers use. That section is labeled 'Synto Interface'. I experimented with various patches and found some functionality in a few of the controls but I don't recall specifics beyond that. "

Below that you can see The Tim Smith box featuring the following section: Explonental Amp, Noise Generator, Lag Processor, and ENV/Gate Generator. I asked Mike is Tim Smith the same Tim Smith that was the Western Regional Tech Rep for Sequential Circuits , Arp, Moog and also contributed to the famous Vintage Synthesizers book and articles in Keyboard Magazine. He's not sure but believes it is.

Further below you'll find the MODEL EML-200, MANUAL CONTROLLER EML-300, multi-pin cables, EML 400 : EML 401, EML 500, EML POLY-BOX, X-Y CONTROLLER

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EML Electrocomp 101

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"EML electrocomp 101. Sounds great, works as it should, in what I would consider very good to excellent cosmetic condition given its age."

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EML 200 and 300 Blue Face

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"Not something you see everyday! EML Electrocomp 200 with 300 controller.

These predate the more popular Electrocomp 101, starting the run in 1969. The blue faced ones were all made for universities, so I’ve been told. I don’t know a whole lot about the lineage here, but suffice to say these are extremely rare. The last complete sale I can find on Reverb was 6 years ago.

The units show pretty typical wear for instruments made nearly 60 years ago, but they’re in remarkably good condition. Everything works! A couple of the triggers on the 300 double trigger when tapped, and I would imagine the whole thing would benefit greatly from a cleaning.

Like I said, these are incredibly rare. So it’s difficult to even put a value on it."

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NOS Electronic Music Laboratories Syn Key

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"EML Electronic Music Labs Rare SYN-KEY 2001, this unit was never sold and is New Old Stock. Condition is excellent. I had it checked cleaned and inspected by my tech and the unit is working %100. Rare find especially in this condition! USA Shipping ONLY. Thanks."

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EML400 EML401 ElectroComp sequencer by Analogue Solutions

video upload by Analogue Solutions

Almost thought they were making a clone, but this appears to be them playing with an original:

"EML400 EML401 ElectroComp sequencer by Analogue Solutions.
These are really unorthodox and hard to use! Mine has scratchy sliders. Packed with great sequencing features - if you can figure out how to use it!"

Electronic Music Laboratories Electrocomp EML-101

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"EML101 - Just serviced and calibrated in Paris by Benoit Guivarche /insta/ @bg_.s (Air, La Femme, etc) - Serial number 1095, serials started at 200 making this number 895 out of about 1000 ever made by the Connecticut based company in the 70s. If you already have the standard Korg and Moog offerings this synth will bridge the gap and give you a different playing field. It has 4 oscillators, can be duophonic, amplifiers can be overdriven if desired simply by cranking the osc volumes, has ring mod, 2 envelopes, tons of modulation capabilities, a super musical beast of a synth. I've had it for 25 years now, I'm going to regret it, but it's time to pass the torch."

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12/11/24 EML 400/401 + Metasonix KV-100 Assblaster! + Roland RE-301 + CXM 1978

video upload by Cfpp0

"12/11/24 ElectroComp EML 400/401 + Metasonix KV-100 Assblaster! + Roland RE-301 + CXM 1978

Just seeing how a fixed Metasonix KV-100 Assblaster! reacts to the ElectroComp EML 400/401. The Assblaster! filter CV input is receiving V4 voltages from the EML 400 (left side)."

Electronic Music Laboratories Electrocomp EML-101 FULLY SERVICED

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"This EML 101 is fully serviced by in-house technicians, fully functional and in great condition. It sounds awesome.

The ElectroComp 101 is the successor to the rare ElectroComp 100 from Electronic Music Laboratories (EML), a small synthesizer company based out of Connecticut in the USA. Like the ARP 2600, the 101 is a patchable (1/4'' patch cords) semi-modular synth with a pre-wired voice path that can be over-ridden via patching. But unlike the ARP (or MiniMoog for that matter), the 101 has as many as four oscillators (two of which can go sub-sonic, for use as LFOs). The 101 is also Duophonic so you can play up to two notes at once. Another major distinction was that unlike Moog and ARP, who used transistors that would tend to drift out of tune under various operating temperatures, EML used op amps which proved to be far more stable and reliable.

Other onboard features include a voltage controlled 12 dB/oct multi-mode filter with resonance, two envelope generators, ring/amplitude modulator, noise, and sample-and-hold (they call this the "Sampler"). In addition, the 101 makes no distinction between control voltage and audio paths allowing just about any source to be patched to any control or audio input in any order. The 101 could easily be closed, secured and carried inside its wood casing.

This synthesizer is fantastic. It's warm, punchy, powerful and has lot of bite not to mention a sound that sets it apart from its contemporaries and, for that matter, any other synth."

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EML Electronic Music Laboratories ElectroComp 400/401 Rare 70s Analog Semi Modular Synth Sequencer SN 460

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"Rare Synth/Sequencer in incredible condition! EML made only 300 of these. Serial numbers started at 400 I believe, from what I’ve read they start with each model number. Completely checked through and serviced. Works and sounds great, really unique HUGE sound and a really fun sequencer. We have a great record of putting a lot of care into our shipments and will ship protected. Instrument quality and playability is well documented please ask if you need any other pics or vids. Would make an amazing stage or studio instrument. A couple small scratches on the back, as pictured, slight patina on handle.

EML's 400/401 ElectroComp is a rare semi-modular analog synthesizer/sequencer that first appeared in 1970 and although it was produced until 1984, roughly 300 were made. The synthesizer (401) component can be considered a scaled down version of the EML 500 in some ways. It looks very similar in color and layout but lacks a built-in keyboard. It retains patch-cord signal patching and editing associated with modular synths as well as some switches. Dual VCOs produce a monophonic analog sound which can be shaped by the multimode resonant VCF (filter) with switchable hi, low and band pass filtering. Only sawtooth, square and noise waveforms are available from the oscillators. The envelope section offers only attack and release control (the EML 500 envelope section added sustain).

Complementing the EML 401 modular component is the 400 system which, as seen above, is covered with dozens of switches and sliders. Basically it's an analog sequencer component. It is a 12-tone diatonic sequencer with a digitally controlled voltage quantizer built-in - a sophisticated feature for the time. This allows for a variable number of steps-per-octave ranging from 5 to 60...a very unusual feature which makes the unit very useful for those exploring alternate/microtonal tunings. It also offered voltage controlled envelope generators in 16 stages! These could be programmed for creating pretty wild sequences and patterns.

The EML 400 and 401 system was a response to the popular Moog and ARP modulars from the era. It offered new ways of synthesizing classic analog sounds which may not have been better than its competition, but it certainly was unique. Today these rare instruments can still be found in use by synth anoraks around the world."

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