EML Electrocomp Manual Controller EML-300

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via this Reverb listing

"This is untested but clean as can be."

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ElectroComp EML-101 VST from DenverSynthLabs

video upload by manmade madman

"Heres a short demo showing how analog this thing sounds.

Now available at store.denversynth.com"

ELECTROCOMP 101

A faithful emulation of a machine older than your dad's synth collection.
Four oscillators, a full patch bay, and a state-variable filter with an INPUT DRIVE stage that distorts inside its own resonant loop — the original's signature scream, modeled all the way down to the resonance itself breaking up under drive. Duophonic voice architecture, a MODULATOR that goes OFF → AM → RING, a sample & hold SAMPLER clocked off OSC 1, and enough patch points to make questionable routing decisions like it's still the Nixon administration. Patch it by hand for hours, or hit EZ to find something you wouldn't have thought of in a million years.

- Four oscillators — OSC 1 steps through triangle/saw/square/pulse/sine across HI/LO range, OSC 2–4 morph continuously via COLOR — feeding a duophonic voice architecture (KB1/KB2)

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9/7/26 (triple VCF test) EML 200 + acVOKS VCF + muSonics + STG + FSFX + Corsynth + CXM 1978

video upload by Cfpp0

"9/7/26 (triple VCF test) EML 200 + Analog Craftsman acVOKS VCF + muSonics Vanilla Envelope & Vanilla Filter + STG soundlabs Sea Devil’s Filter + FSFX Lopass Gate & Dual Trigger Processor + Corsynth Frequency Divider / Multiplier + CXM 1978

Sometimes the camera won’t focus, not sure why. We ordered a second Analog Craftsman acVOKS VCF and this was a test of how three of our 5U filters sound together with the ElectroComp EML 200. I like how old it all sounds. And I like the limitations of the EML 200, but just wish it had voltage-controllable filters. The two EML 200 sawtooth VCOs are running through the acVOKS VCF (Polivoks), the STG soundlabs Sea Devil’s Filter (Synthi), and the muSonics Vanilla Filter (Oberheim). VCO1 runs through the Vanilla Envelope, modulated by the right LFO on the Free State FX dual trigger processor (in dual LFO mode). The EML master triangle and both of the FSFX LFOs are modulating all the filters. The EML VCO2 runs through the EML VCA, modulated by the master triangle, and then into the acVOKS VCF, which is modulated by a copy of the FSFX right LFO. The acVOKS VCF audio lowpass output is panned left on the Mackie Onyx 1640 mixer. The acVOKS bandpass audio output is modulating the Vanilla Filter, which is panned right. The Vanilla Filter is also modulated by the left FSFX LFO and the EML master triangle. The EML VCA processing VCO2 also runs through the Corsynth Frequency Divider / Multiplier, and that is sent to the FM input on the Sea Devil’s Filter, which is filtering the EML VCO2 gated by the FSFX Lopass Gate, modulated by the EML master square. The master square is also controlling the pulse for the EML sampler. At first the EML sampler is fed noise, then later it’s fed VCO2 for the S&H modulating VCO1 on the EML 200. The reverb was blended on the CXM 1978."

matrix note: trumpets!

9/3/26 (300 test) ElectroComp EML 200 & 300 + Peavey DDL-3 + CXM 1978

video upload by Cfpp0

"It took many years to find an EML 300 controller that wasn’t too haggard or too expensive, but here it is—and it’s blue! We weren’t sure whether it worked properly or not, but I plugged it into one of our EML 200 synthesizers today and it powered up. So far it seems to be working pretty well. This was the first test. The oscillator we hear is coming from the EML 300, with the pitches punched in manually on the keypad. The envelope settings are also from the EML 300, but the envelope is modulating the EML 200 VCA, which is processing the audio from the 300. The VCA output runs through the EML 200 internal spring reverb then out to the Mackie Onyx 1640. The delay is from the Peavey DDL-3 and the reverb was blended on the CXM 1978, but the delay is only heard through the wet delay."

8/26/26 (26 MU) EML 200 + .com + FSFX + STG + muSonics + SSL + Corsynth + Trouby + CXM 1978 + (…)

video upload by Cfpp0

"8/26/26 (26 MU) ElectroComp EML 200 + Synthesizers.com Q124 & Box11 + Free State FX 103 Lopass Gate & Dual Trigger Processor + STG soundlabs Sea Devils Filter + muSonics Vanilla Filter + Synthetic Sound Labs 1520 Segwencer + Corsynth c103 Frequency Divider / Multiplier + Trouby Modular Trigger Decay + CXM 1978

Synthesizers.com had a 4th of July sale, right after we moved our ElectroComp EML 400 above the 401, so we got two Box11 cases to house 5U modules to aid the EML system. I covered the ugly Box11 logos with electrical tape, connected the two cases with a metal brace, then attached a Box4 case to the right side, which perfectly fills the whole gap between racks on either side of the EML system. Anyways, this was the first test. The EML 200 master square wave is controlling the tempo, and I switch the range at 0:22. The EML Sampler is sampling noise, and the Sampler out is multiplied on the Box11, modulating both EML VCOs, which run to the Synthetic Sound Labs 1520 Segwencer IV, modulated by the Sampler output. VCO 1 also runs to the EML VCA, modulated by the master sine wave, and that goes straight to the Mackie Onyx 1640 mixer, panned left. The 1520 audio out goes through the STG soundlabs Sea Devils Filter, modulated by the Free State FX Dual Trigger Processor in LFO mode, and the Sea Devils Filter is FM’d by the EML 200 VCO2. A copy of VCO2 is processed by the Corsynth C103 Frequency Divider / Multiplier, which drops the pitch an octave lower, and that detuned version runs through Free State FX Lowpass Gate, modulated by the EML 200 master square wave through the Trouby Modular Trigger Decay. Both the Sea Devils Filter output and the FSFX Lopass Gate output are mixed in the muSonics Vanilla Filter, modulated by the other LFO output on the FSFX Dual Trigger Processor (Modulation in) and the EML Sampler output (v/o in). At the end I pull the cable from the sampler. Reverb was blended on the CXM 1978."

Electronic Music Laboratories Electrocomp EML-101 SN 475

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via this Reverb listing

"This is a very rare Electrocomp 101 (Serial # 475) in a very good condition. It has been fully serviced and has no issues whatsoever.

I'm the third owner of this unit. Some mods were done in the 1970's by John Phelan, one of the engineers @ EML which makes this unit totally unique. Here's the functionality of the added 3 switches:

The switch near the Glide Control, multiplies and lengthens the glide time as the pitch slides from note to note. The switch below the filter turns the BP (bandpass) filter setting, into band reject (meaning it provides highpass and lowpass filtering simultaneously).
The switch next to the mixer changes the character of the noise (from white to pink)
I took great care of the unit and used it only in my studio. I'm selling it because I'm simply not using it at all. This 101 comes with original manual and documentation."

Note SN 475 was listed back in 2014.

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7/31/26 (new config) ElectroComp EML 400/401 + CXM 1978 + Alesis MIDIVERB II

video upload by Cfpp0

"This is the new setup of the ElectroComp EML 400/401, with the 400 above the 401. This was actually a test of some stabilizing zip ties. The oscillators are drifting a bit since moving the 400 and I suspect it’s because the cable was switched to the left connector on the 400. Hopefully that’s just some dust. The reverb is from the Alesis MIDIVERB II and the pitchy grainy delay is blended on the CXM 1978."

7/1/26 Roland TR-909 & RE-201 + ElectroComp EML 400/401 + SDS1 + Dukane 2a76 + MIDIVERB 2 + CXM 1978

video upload by Cfpp0

"This video is shot at a more revealing angle than usual, to document the setup before we change it. When we added an EML 400/401 to our EML 200, we made custom shelves to line the three panels up on a table. But we got a great deal on a second EML 200 during the pandemic, so that got installed on a metal shelf over the first EML 200. The studio kept growing over the years, with lots of revisions on how it is all arranged, but the EML 400/401 hasn’t moved an inch. I never liked this hockey stick configuration and have always felt the EML 400/401 is a bit underutilized. This summer we’ve decided to move the 400 above the 401, creating a big EML block, so that the 400 is closer to the 200s, to the Buchla system, and so it’s easier to reach everything at once.

Anyways, the point of this patch was to use V1 on the right set of stages to reset the left set of stages. It’s a fun trick because you can control when and how often you want to reset the sequence using the sliders. The TR-909 is externally clocked by ALM Pamela’s New Workout at 130bpm. The kick and rim shot are saturated by the Dukane 2a76. The snare sound is the Simmons SDS1, triggered by the rim shot trigger output on the 909. The EML 401 filter is in high pass mode. At 0:43 I drop the kick, unmute the clap and hats, and turn off the voltage control of the envelope, which makes it sound like a goose. At 1:13 I change the TR-909 pattern and switch the routing of the lower voltages on the 400, from V4 to V3 and from V3 to V4."

1970’s Electronic Music Laboratories EML Electrocomp 101 and 200

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via this Reverb listing

These appear to be listed separately as well. See the seller's other items.

"We recently acquired these two consecutively cute curiosities courtesy of a very inspiring and equally interesting gentleman and great friend of the late Don Buchla. When I brought them back to the shop, naturally I plugged the 101 in and attempted to get proper scaling and triggering sound out of it for 45 minutes, watching videos reading pointers etc. Finally I tried turning the 5 pin keyboard plug around, and then I lost 4 hours in seemingly 10 minutes. I was floored. I didn’t hook up the 200. The next day I delivered these to my friend and tech in Santa Ana. Within a week he had checked them out , addressed any issues and found them to be fully functional and in great working condition. So I picked them up and was really excited to try the 200. Got back to Fullerton and plugged it in with a mf-104 tailing into an early cooper cs-106+ and went to heaven. The spring sounded like the grampian, the preamp is also in that vein, dual ring modulators are very special. In particular as a studio piece the stereo functionality takes this to another level, signal processing to use while mixing or effecting tracks Is very much more than 1/2 the value with the 200. Awesome machines."

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EML 101 and EML 200 Manuals

This one is in via Keith Soehn who had the following to say:

"As a former owner of 2 EML 101s, an EML 200 and the EML 400/401/416 Sequencer, I somehow felt the need to desktop publish the manuals for the above-mentioned EMLs. (I will also redo the EML 500.) It’s my belated thanks to all the people and to present and past users of these synths and sequencer. I enjoyed working with these units.

I presently have finished two manuals for the EML 101 and the EML 200, and I’m almost finished with the Sequencer manual. James Gideon has graciously posted the pdfs on his website at: https://siliconbreakdown.com/eml"

Side note: you can find videos by The Silicon Breakdown in additional posts here. You will find posts going back as far as 2008.

5/29/26 (goofy samba) EML 400/401 & 200 + Roland CR-78 + DSP 808 + Metasonix R-57 + ADE Panscan (…)

video upload by Cfpp0

"5/29/26 (goofy samba) EML 400/401 & 200 + Roland CR-78 & SPH-323 + DSP 808 + Metasonix R-57 + ADR Pan Scan + Alesis MIDIVERB II

Whatever this is, it came about when I hooked up the Roland CR-78 drum machine trigger output (Disco 2/Samba) to the ElectroComp EML 400/401 external clock input. And it sounded so goofy I had to record it. A kick from the DSP 808 was added on the 1. The EML 400/401 is auto-panning through the ADR Pan Scan. Then I did an overdub, alternating octaves on the EML 400/401, with the CR-78 beat running through the Metasonix R-57, and a clave on the DSP 808. There is an additional clave sound towards the end, from the EML 200, using the envelope output from the EML 401. Reverb from the Alesis MIDIVERB II."

5/24/26 EML 200 + Metasonix TM-3 & TM-1 & TM-7 + Lower West Side Studios CGS01 + Alesis MIDIVERB II

video upload by Cfpp0

"The ElectroComp EML 200 master triangle is feeding the Lower West Side Studios CGS01 Sub Oscillator module, which is producing a sequence. The positive output of that sequence is modulating the Metasonix TM-3 gas-tube dual VCO, which runs through the Metasonix TM-1 SE waveshaper. The positive sequence from the CGS01 is also modulating the VCA input on the TM-1 SE. The negative output of the sequence from the CGS01 is sequencing the two VCOs on the EML 200, through its VCA, and with its internal spring reverb. The TM-1 SE audio output runs through the Metasonix TM-7 ultra-distortion scrotum smasher, which is being modulated by the EML 200 envelope output. From 1:49, the TM-3 suboctave and oscillator sync are creating some cool percussive spasms. Some reversed reverb is applied from the Alesis MIDIVERB II."

EML-101 with internal reverb and pitch wheel

video upload by exfade electronics

Electrocomp EML-101 Owners Manual

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via this eBay listing

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4/3/26 ElectroComp EML 200 + Peavey DDL-3 + CXM 1978

video upload by Cfpp0

EML Electrocomp 400 Sequencer

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via this Vemia listing

Click the auction link on top when you get there for additional listings.

"EML - Electrocomp 400 Sequencer section (s/n 468) 3 Row 16 step analogue sequencer. UNTESTED as it needs to connect to another EML product via the proprietary cable (Included). VEMIA can collect and pack: 12GBP."

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The rare EML SynKey #synth

video upload by Rosen Sound

12/28/25 ARP 1623 + ElectroComp EML 200 + Peavey DDL-3 + CXM 1978

video upload by Cfpp0

"I think this is the first time I sequenced the EML 200 with the ARP 1623. The sequencer is 1 volt per octave and the synthesizer is 1.2 volts per octave, but it still works. Here the gate bus 1 on the ARP is triggering the envelope on the EML, which controls the VCA both VCOs are running through. That signal then runs through the EML spring reverb into the Peavey DDL-3 delay to the Mackie Onyx 1640 mixer, where the dry is panned left and the wet is panned center. Both have stereo reverb blended on the CXM 1978."

12/10-19/25 Metasonix D-2000 + Make Noise Maths + Roland SH-101 + Gieskes Starving Binary + (…)

video upload by Cfpp0

"12/10-19/25 Metasonix D-2000 + Make Noise Maths + Roland SH-101 + Gieskes Starving Binary + Alesis MIDIVERB II + Peavey 1310 + Yamaha EM-100 + DBX 119 + ElectroComp EML 200

This was a test from earlier this month of a rack we installed above the Metasonix D-2000. There are two Make Noise Maths and a Gieskes Starving Binary triggering the D-2000. The D-2000 is heard as is, but it is also heard through the DBX 119, which gates the signal, and also gates a drone from the ElectroComp EML 200, which is fed through the DBX 119 at the same time. The Roland SH-101 is played manually, through a Peavey 1310 delay into a Yamaha EM-100 mixer, with the preamps cranked up and the internal spring reverb on. Everything has some Alesis MIDIVERB II."

Electronic Music Laboratories Electrocomp EML-101 Synthesizer labs *REFURBISHED*

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via this eBay listing

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"This EML-101 was meticulously refurbished and is better than others you may find. This process required 36 hours of highly skilled vintage synth labor, plus parts costs. This unit includes the factory installed pitch bend wheel, which is rare.

Here's a summary of some of the work we did to this instrument that should make it significantly more valuable than others on the market:

We replaced the original handle - those familiar with 101s know the handles often fall apart - we've learned not to carry them by the handle / always carry them with both hands! At the time of writing this description, we see a unit listed as serviced with duct tape holding its handle together. This unit was fully disassembled and cleaned inside and out. Replaced jack washers and nuts. Rebuilt power supply for longevity (replaced electrolytic capacitors and 2 regulators). Replaced metal latches. Replaced electrolytic caps. Cleaned jacks. Removed and cleaned all keys. Removed and replaced rubber keyboard bushings. Cleaned and lubed key contacts and bus bar. Recalibrated CV VCO 1, 2, 3, 4, VCF. Replaced trimpots exp circuit. Replaced all pots that weren't perfect, so this unit works crackle-free and feels like playing a brand new instrument."

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