CMS Restored ARP 2600 / 2601 with 3620 Keyboard

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via this auction

via the seller: "I am the original owner of this beautiful ARP 2601. I bought it new in 1980; the original sales invoice is included. I’ve kept it in my studio in excellent condition all these years, but now it is time to sell it. There are NO missing slider caps, knobs, or parts. All functions work to factory spec.

I’ve just had it serviced by Phil Cirocco at CMS Discrete Synthesizers. As many will attest, Phil is the acknowledged expert in ARP service and repair. Here is what he did:

Console:
Rebuild power supply
Repair VCO 3
Repair AR generator
Remove boards and chemically clean all sliders
Replace all jack washers and nuts with OEM Switchcraft hardware
Clean front panel and inside chassis
Calibrate unit

Keyboard:
Clean and adjust keyboard contacts
Clean and lube all sliders
Replace jack washers and nuts with OEM Switchcraft hardware
Clean front panel and inside chassis
Calibrate keyboard

There are two modifications that I had done years ago.

On the keyboard control panel there is a small red toggle switch in the upper right corner and a red momentary push button next to the vibrato sliders. With the switch in the “off” position the LFO/vibrato controls work in standard fashion. When the switch is in the “on” position the vibrato delay is replaced by push button activation. Pushing the button engages the LFO/vibrato depth settings instantly. This allows for expressive use of vibrato while playing.

There are two additional jacks on the lower left corner of the console, and one additional jack on the keyboard control panel next to the connector cable. These allow for an optional ground cable (included) to connect the chassis grounds between the keyboard and console. In some studio situations this improved pitch stability. It is entirely optional.

There are EXTRAS:

Original ARP Performance Stand
2 Original ARP foot pedals for Portamanto and Interval Latch (the 2601 is duophonic, the pedal “captures” the duophonic interval chosen)

ARP 2600 Patchbook
2 editions of the ARP Owners Manual
3620 Keyboard Owners Manual
Service manuals for both main unit and keyboard
Various ARP catalogs and promo materials that I collected while ARP was still in business.
Original bill of sale

Patch cords

This ARP is in beautiful cosmetic and electronic condition. There are some minor blemishes on the keyboard case lid. I’ve shown pictures of them, some small white spots."