Sequential Circuits Prophet-10 promotional sticker from 1981.
Used Exatron stringy cassettes $15 each
Exatron Stringy Tape Drives are mounted in the front under the Sequencer.
The Prophet-10 Operating System consists of 3 ROMs. OS Version 4.0 is for Prophet-10s with the front mounted Exatron tape drive, Version 5.0 is for Prophet-10s with the side mounted Braemer tape drive, and Version 6.1 is for all Prophet-10s with MIDI installed. A MIDI kit installation will permanently disable access to the Exatron tape drive and sequencer, but the Braemer tape drive and sequencer will continue to operate with MIDI installed. The 3 socketed MIDI OS ROMs are labeled as 0, 1, and 2.. and can be seen in the adjacent picture. The MIDI ROMs are labeled 0TEN6.1, 1TEN6.1, and 2TEN6.1
Prophet-10 CPU board with 3-chip set Operating System.
Used Original ProphetŪ10 parts
power switch $15 ** 1/4" jack $15
1/4" jack/cable assembly $22
Email us for current availability ** Shipping is Additional
Power switch * Audio Jack
1/4" jack & cable assembly.
Top Panel Hinge Locks ***SOLD***
#I-417/LM317K for the Prophet-10 variable power regulator $25
#I-417/LM317K variable power regulator $25
Original Transformer & Heatsink $45
Original Prophet-10 Transformer & Heatsink
****Prophet-10 Corcom Power Jack*** Fuse & Voltage Select Card included **$35**
Used Original Prophet-10 Corcom power jack
Housing, Fuse, & Voltage Select Card
Used Original Board#8 for ProphetŪ10 $25
<< PDFs of Original Sequential Circuits Prophet-10 Spec Sheets from 1980
Last Update: April 9, 2026
For lower shipping costs when purchasing multiple items email us at Sales@WineCountrySequential.com and request a PayPal Invoice for your order.
International buyers are responsible to pay directly to the applicable agencies any import duty or taxes levied on the merchandise by their governments. Buyers inside California are subject to State Sales Tax on the cost of merchandise.
Sequential Circuits PARTS sales continue until SOLD OUT.
No Refunds * No Returns * No Exchanges * ALL Sales are Final
PROPHET® and SEQUENTIAL®
are trademarks of SEQUENTIAL® LLC
used by Wine Country Productions Inc. under license.
