MATRIXSYNTH: Sequential Circuits Prophet-5 Rev 3.3 Midi Analog Synthesizer + case “Serviced” SN 3280

MATRIXSYNTH: Sequential Circuits Prophet-5 Rev 3.3 Midi Analog Synthesizer + case “Serviced” SN 3280

Tuesday, June 30, 2026

Sequential Circuits Prophet-5 Rev 3.3 Midi Analog Synthesizer + case “Serviced” SN 3280

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via this eBay listing

"Fresh service done by Greg Montalbano of Analog Synth Service in Oakland CA. (6/29/26)

Service done :

Routine service (replace bypass caps, battery; clean pots, switches, key contacts; load factory patches; tune & scale; replace power cord)

Replace 2 j-wires:

Replace voice 4 CA3280:

Replace voice 2 CEM3310:

Rev 3.3 memory upgrade:

This is originally a 3.2 upgraded to 3.3.The photo shows the old power cord. Update : The last 2 photos shows the new power cord as installed by Greg."

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