Rare Vintage ARP 2600 Analog Synthesizer with Keyboard (ONE owner) SN 0976

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"This ARP 2600 is a extremely good condition. This is the last version of this synth that was built in 1980 with the suitcase handle. The outside tolex is all original and in excellent condition. All the sliders and pots are clean and scratch free. Please email me any questions that you may have.
The ARP 2600 is a semi-modular analog subtractive audio synthesizer, designed by Alan R. Pearlman with Dennis Colin, and manufactured by his company, ARP Instruments, Inc. as the follow-on version of the. Unlike other modular systems of the time, which required modules to be purchased individually and wired by the user, the 2600 was semi-modular with a fixed selection of basic synthesizer components internally pre-wired. The 2600 was thus ideal for musicians new to synthesis, due to its ability to be operated either with or without patch cords, and was, upon its initial release, heavily marketed to high schools, universities, and other educational facilities

2601 v3.0: Late in 1980, a final revision was released with un-potted submodules, making them easier to maintain, and a revised suitcase. However these late models are quite rare as their release coincided with ARP's final days.

There were three versions of the remote keyboard associated with the 2600. The Model 3601 is a very rudimentary version with just Portamento and Tuning controls. The Model 3604 is similar but adds adjustable scaling and was used until 1974. The duo-phonic Model 3620 (pictured) which adds a dedicated LFO, latching and some other very useful features was introduced with the 2600P v4.0 and was used with all subsequent models from 1974 to 1980.

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Pics of the inside below.