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Home of the PROPHET® and all SEQUENTIAL CIRCUITS instruments.

Prophet 3000 16-bit Stereo Sampler SURVIVAL * SURVIVAL * SURVIVAL PC Boards ** Parts ** ICs ** Manuals
#I-365/CEM3387 Signal Processor ICs SOLD OUT
N.O.S. CEM3387 Low Noise Signal Processor ICs * SOLD OUT * This low noise signal processor was used in the Sequential Prophet 3000, Waldorf's Wave & Microwave.
 
Two (2) Partially Populated & Untested 4-Meg Memory Expansion Boards for Revision B Prophet 3000s ** $169
The 4-Meg Expansion Board PC0892-1 increases memory of a 4-Meg Prophet 3000 to 8-Meg.
The PC0892-1 and PC3000-4 are different revisions of the same 4-Meg Expansion PC board. 
Two (2) Partially Populated Untested 4-Meg Memory Expansion Boards for Revision B Prophet 3000s * SHIPPING INSIDE USA
$169.00
Two (2) Partially Populated Untested 4-Meg Memory Expansion Boards for Revision B Prophet 3000s * SHIPPING OUTSIDE USA
$169.00

Four (4) #I-627B PLCC ICs for $44 ******SCI Custom IC******
The #I-627B PLCC is only for Revision B Prophet 3000 Stereo Digital 16-bit Samplers
#I-627 PLCC is Revision B ** #I-627 PGA IC is Revision A
The Prophet 3000 was designed with 2-meg of memory expandable to 4-meg
by the user installing 32 DRAM ICs into 2 rows of 16 empty sockets

An #I-627PLCC IC is required to update a Revision A to a Revision B Prophet 3000
Four (4) #I-627B PLCC ICs for the Revision B Prophet 3000 * SHIPPING INSIDE USA
$44.00
Four (4) #I-627B PLCC ICs for the Revision B Prophet 3000 SHIPPING OUTSIDE USA
$44.00
 
Prophet 3000 Survival Kit * $45

SEQUENTIAL® Prophet® 3000
Survival Kit: $45

#SK3000-7 includes 1 each of the follow ICs:

#I-629 custom serial/parallel IC

#I-630 custom"glue chip" IC

#I-366/CEM3357 sample & hold IC

plus 2 pots and 2 control panel switch caps
Prophet 3000 Survival Kit SK3000-7 contains 3 ICs, 2 pots, and 2 switch caps. #I365/CEM3387 signal processor IC NOT INCLUDED
Prophet 3000 Survival Kit of 7 spare parts SHIPPING INSIDE USA.
$45.00
Prophet 3000 Survival Kit of 7 spare parts SHIPPING OUTSIDE USA.
$45.00
 
NOS #I-628 DMA (PLCC) $38 ******SCI Custom IC******
** Limited Availability **
SCI #I-628 DMA is a custom IC in a PLCC package found in the RevA & RevB Prophet 3000s.
NOS #I-628 DMA (PLCC) custom IC for RevA & RevB Prophet 3000s SHIPPING INSIDE USA.
$38.00
SCI Custom IC Original Data Sheet - #I-628 DMA in PLCC package. Click or Tap on image to enlarge.
NOS #I-628 DMA (PLCC) custom IC for RevA & RevB Prophet 3000s SHIPPING OUTSIDE USA.
$38.00
One (1) #I-627B PLCC IC for $22 ******SCI Custom IC******
One (1) #I-627B PLCC ICs for the Revision B Prophet 3000 SHIPPING INSIDE USA
$22.00
One (1) #I-627B PLCC ICs for the Revision B Prophet 3000 SHIPPING OUTSIDE USA
$22.00
Click or Tap on picture to enlarge
 
Prophet 3000 Remote Panel Housing with Rotary Encoder & Knob * $30
Used SEQUENTIAL Prophet 3000 Remote Panel Housing with Rotary Encoder & Knob
Used SEQUENTIAL Prophet 3000 Remote Panel Housing with Rotary Encoder & Knob * SHIPPING INSIDE USA
$30.00
Used SEQUENTIAL Prophet 3000 Remote Panel Housing with Rotary Encoder & Knob * SHIPPING OUTSIDE USA
$30.00
Prophet 3000 Remote Bottom Panel $13
Prophet 3000 Remote Bottom Panel Metalwork * NOS
Prophet 3000 Remote Bottom Panel (NOS) SHIPPING INSIDE USA
$13.00
Prophet 3000 Remote Bottom Panel * SHIPPING OUTSIDE USA
$13.00
Sequential Prophet 3000 brochure $5
Click or Tap on picture to enlarge.

Original SEQUENTIAL Prophet 3000 4-page brochure SHIPPING INSIDE USA

$5.00

Original SEQUENTIAL Prophet 3000 brochure SHIPPING OUTSIDE USA

$5.00
Original Prophet 3000 Tech Manual ****SOLD OUT****
Original Prophet 3000 Technical Service Manual TM3000 ** SOLD OUT



Last Update: Sept.18, 2026