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ARP 2600 with ARP 3620 Keyboard

“ARP 2600 Model 2601 Synthesizer for sale. This unit is one of if not the nicest black and orange 2600s we’ve seen. We bought it from someone who owned it since it was new. He rarely used it, and this is quite obvious from looking at it. (See photos)

One of the other 2600s we’re selling is also here on ebay for a fraction of this one’s price, so if you’re not looking for a 2600 in museum quality condition, you may be interested in that one instead. It received the same meticulous electronic restoration and future-proofing we’ve been doing to our 2600s for a long time now.

This unit was disassembled, cleaned inside and out, meticulously serviced AND FUTURE-PROOFED and fully and repeatedly tested by vintage synth specialists with decades of experience (us). This process required 31 hours of skilled labor. The result is an ARP 2601 that is much better than the rest.

This unit is working perfect, is ready to play, and will hopefully outlast all others.

In addition to any repairs, we did the following work to this unit:

-Fully disassembled, cleaned inside and out.
-Power supply rebuilt: new capacitors and trimpots.
-All tantalum capacitors replaced (these are a common source of failure in ARPs).
-ARP typically installed rubber gromets in between the reverb tank and wooden enclosure of their 2600s. For some reason, there were no gromets installed in this unit, so we installed new ones.
-All sliders and switches cleaned and lubricated.
-Molex connector terminals replaced for better connection.
-Keyboard fully rebuilt: removed and cleaned all keys, cleaned J-wires, removed and cleaned bus bars, replaced rubber bushings.
-Replaced Cinch-Jones keyboard connector socket.
-Recalibrated.
-Replaced some metal hardware (screws, jack nut, etc).
-Burn in test.
-Multiple systematic tests of all functions.

Earlier revisions of the 2600 are notorious for having their modules sealed in black epoxy. This late version 2601’s circuits are all open, so if a component ever goes bad, repair should be easy.

Apart from a little rust on the metal hardware on the outside of the case (which we see a lot) and 1 or 2 tiny imperfections, we feel this unit looks immaculate. But please take a good look at the many detailed pictures posted here to see for yourself. We have 45 detailed photos of this 2600 but eBay only allows us to post a small number of photos.” Click here to search for synths on eBay