Sequential Circuits Model 700 Programmer SN 0051

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via this auction

Some nice close-ups of the jacks on back below.

"This listing is for one late-70s vintage Sequential Circuits Model 700 Programmer in worn but good cosmetic condition and excellent functional condition. It recently underwent full electronic restoration by genius tech Dave Brown and is working perfectly. He posted full details of the restoration on his modularsynthesis website. Unit has attached power cable and is a 120V model.
This is a Mk 1 unit and is likely a bit of history, I think Dave Smith was making these by hand. There is no microprocessor, all switching, sequencing and memory is analog.

You might ask "what do I need a programmer for now that I have midi/Expert Sleepers/eurorack/etc?" While that was its original intended use think of it this way:
--You have 2 DADSR envelopes with attenuation and 3 manual voltages
--You can save these settings in 8 banks of 8 settings
--You can then step through each back in 1-8 steps with an analog trigger or gate, essentially making an 8x3 sequencer with different envelope settings per step!
--Also, there is a transpose input so you can run a keyboard 1v/oct cv in and transpose your voltages (individually selectable for each of the 3 voltages)"