via this auction
"This listing is for an EMS VCS3 The Putney Analog Modular Synthesizer w/ Original DK 1 Keyboard. Important to note about this synth, it does not have master tune knob like many synths made after. There are three parameters the user needs to juggle to property tune this synth. The first is the frequency knob of the oscillators, 2nd is "Input Channel 1" knob and finally, the "Frequency" knob on the DK1 keyboard. Even with everything dialed in nicely, sometimes the higher or lower notes on the keyboard will be slightly out of tune. Adding or removing patch pins will raise or lower the voltages for all three of these parameters and will throw the synth out of tune. This is a historic synthesizer without the "quality of life" upgrades of analog synthesizers made after."
Original DK . 1 Keyboard w/8-pin Cable New 3-pin Power Supply
Original 3-pin Power Supply
SERVICE DONE:
VCS3:
- All new electrolytic and tantalum capacitors (including PSU)
- All new 5w resistors
- Rebuilt power supply section with new voltage regulators, diodes and transistors
- Replaced envelope lamp with LED
- New grounded power cable
- Cleaned card edges and card edge connectors
- Full calibration to factory specs
DK1:
- All new electrolytic capacitors
- Full calibration to factory specs
UNPACKAGED WEIGHT: 30.15 lbs.
UNPACKAGED DIMENSIONS: 30" x 20" x 18"
Pics of the inside below.
