EMS VCS3 with DK1 Keyboard

“PHYSICAL CONDITION: Excellent- Super clean all around. Some of the black lettering on the front is spotty but everything is legible. Some of the knobs have very minor scuffs that one could only see upon close inspection. A few minor dings on the wood cabinet but nothing that catches the eye. Overall, the physical condition of this synth is excellent. WORKING CONDITION: Excellent – Maintained by a consummate professional. This synth is 100% original with no modifications or repairs. This synth is in excellent working condition. Lights and meter in perfect working order. All knobs and switches feel good. Patch bay and pins all in good shape. Overall, the working condition of this synth is excellent. Please click on “Item Description” for more details and photos”
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EMS Polysynthi

“The Polysynthi was a unique instrument in it’s initial release since polyphonic synths were just dawning upon the World. Only 29 were produced in 1977. One of the rarest finds, and only selling because we need to purchase farm equipment for our organic farm. Sadly enough, it will be missed greatly. ” Click here to search for synths on eBay

Categories EMS

EMS Synthi A

“EMS Synthi A Mk.I, 42xx S/N, with extensive mods designed to integrate with the modern studio, with no compromise at all in terms of sound quality and character. Every signal path has a beautiful warm distortion when overdriven, or a full, rich and very clean sound when not. Last serviced Jan. 2018 and further modified by excellent and very well known tech in Belgium. Unit is housed in a special wooden box with protective foam for easy transportation.

Description of modifications:

1) CV inputs #1 and #2, and gate to trigger the trapezoid generator. These are available on three 1/8” cables, hardwired to the EMS keyboard cable, which plugs directly into the keyboard slot (see picture). The signals on the “CV” and “Filt” cables take over the inputs #1 and #2, respectively, and are useful for either audio or CV.

2) Tempco resistors on VCO #1 and #2, to stabilize pitch

3) Oscillator sync (1->2, 1->3, 2->1, 2->3), by three-way switches. Sync is variable from hard to soft via added controls.

4) Buffer boards VCO #1 and #2 and VCF frequency columns, and on both input channels and joysticks rows, to ensure no change in pitch from patching additional inputs and outputs. This is extremely important in using the Synthi for melodic work. [Total rows and columns buffered: 5,6,8,9,15,16,I,J,N]

5) Filter unslew mod, switchable on/off by pulling up the filter cutoff knob. This is essential for audio rate filter FM with oscillators or the filter itself, or in getting better attacks with the trapezoid generator when it is routed to the filter.

6) Trapezoid generator inversion, by pulling up the “trapezoid” knob, for other distinct envelope shapes

7) Ten-turn knobs on inputs #1 and #2, to get as precise as possible tracking from external inputs. This makes the Synthi very easy to tune and use for melodic work. [Tracking is good for about 3-4 octaves, becoming nonlinear at very low frequencies.]

Plugs and power:

The unit is set for operation in the USA (115V), even though the power has a Euro plug (will supply a properly grounded adapter for US operations). However, this can be set to other voltages with an internal jumper.”
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EMS Synthi AKS

“EMS Synthi AKS with rare CV input, recently serviced by Robin Wood at EMS.
It is fully working, as you can see in the images, few blemishes but otherwise in great condition.
It has a red 110v – 240v switch so can be used worldwide.”
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EMS VCS3 MK II, TKS Keyboard, Brookside Electronics Expander

” You are bidding on a fully restored EMS THE SYNTHI VCS3 Mk II

Unit is just out of service

All rotary pots including the Vernier dials replaced and unit calibrated.

This VCS 3 has several modifications including

Osc Sync across all 3 VCO’s with added rotary dial per VCO

Octave range toggle switch on VCO3

Gate toggle switch on Env generator

Trig In/Out added to rear panel

TKS Keyboard has additional ‘Brookside Electronics’ breakout box which adds additional functionality to the Sequencer including Audio and Trig inputs as sync sources.

Modifications are of very high quality and were carried out by Nigel Vivian who held a senior design position at EMS

Restoration recently carried out by Keith Kniveton at Lucid Sound UK.

Physical condition overall is excellent with very little wear, graphics are tip top

comes with original manual and original dust cover ”
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EMS Synthi AKS

“My husband purchased this EMS SYNTHI AKS in 1972 and consistently used it in his piano studio until 2004.

It has been kept in this studio, dry clean condition in its case but has not been used since 2004.

This auction includes the complete original gear which has never been modified.

Included is the original case, the internal synthesizer as pictured, a touch keyboard, keyboard interface cable, power cable,
a complete set of pins as shown in the picture.

He has not used it since 2004 so decided to sell it. He plugged it in and it powers up, but could not get a sound output.”
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“1973 EMS VCS3 Mk2 including original manuals and power lead.

Build date of synth confirmed by Robin Wood at EMS.

It’s in good condition for a 45 year old synth and works perfectly.

The synth is original with no modifications.

As you can see from the pictures, one of the coloured disc caps is missing and some of the print has worn away.
There are 3 small holes around Oscillator 1 that were already there when I purchased the unit and some edges on the face plate look uneven.

All of the above mentioned, cosmetic imperfections, can be replaced by Robin Wood at EMS.

Purchased many years ago in Birmingham from a Guy who also owned a Synth 100.”
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EMS Synthi AKS

“EMS Synthi AKS 1971 vintage Analog Synthesizer Serial number 45236 with a complete service and added modifications carried out by Robin Wood at the EMS studio in Cornwall.

The service was a complete realignment/ test of all functions

The modifications include the Oscillation Stabilizer mod done to all 3 Oscillators,

The Metal- Can dual transistor- OsC 3

VC Shape Oscillator 2 and the filter


It comes with the original power and keyboard cables, A Kenton 5.0 metre CV Cable, 2 excellent manuals, All the patch pins, Filter Unslew patch cable”
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EMS DK1 Cricklewood

“Only selling because I have two – this one listed here just brought up to spec at EMS very rare DK1 Cricklewood keyboard includes original EMS zipper bag- , Jones connector lead to interface to EMS synths and instructions

note this is DK1 keyboard only -does not include VCS3

will ship anywhere in the world well packed” Click here to search for synths on eBay