Restoring A Vintage EMS VCS3 Synthesizer

In his latest video, Keith Robert Murray (Synthesizer Keith) takes a deep dive into the restoration of an EMS VCS3 synthesizer and DK-1 keyboard.

It starts off with an assessment of the synth, which is a bit knackered. Then it covers the repairs made to bring the synth back to good health, including showing all the parts that needed to be replace.

Topics covered:

00:00 Play In
00:09 Introduction
01:20 VCS3 Demo/Assessment
06:43 Initial Repairs
09:37 Meter Repair
17:51 Power Supply and Amplifier Chips
22:00 Keyboard Assessment
23:30 The Keyboard Comes Alive!
26:30 Keyboard signals In Depth
28:25 Issues With The Trigger
31:27 Keyboard Sample & Hold
35:22 Keyboard and VCS3 Pitch Tracking and Velocity
38:10 Parts Graveyard
38:57 Alex Lifeson’s Signature and Other Markings
41:23 Play Out

7 thoughts on “Restoring A Vintage EMS VCS3 Synthesizer”

  1. I so cannot wait for the Behringer version to be released. The only way I can afford to play with this synth is through an iPad app haha

    1. You mean iVCS3? That app is very good, with tons of work done when creating it. However, I don’t see much a way to turn knobs AND change dots on matrix with it, haha.

        1. oh, i missed the ipad part. that app was sort of fun. but VCS is a touchy feely device to me. especially those multiturn pots clicking and clacking away!

  2. Abput 2 years ago Bejringer shwoed a still image of a “$99 VCS3”

    Cum grano salis but it could yet surface.

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