Sequential Prophet 5, Prophet 10

Released in 1978

The Prophet 5 is an iconic analog polysynth, and was one of the first synths to use RAM storage for presets. It has 5-note polyphony, with two oscillators per voice. Rev 1 P5's are very rare (and rather unreliable), and were hand-built. Rev 2's are highly sought after, as they use SSM filter chips and have a huge sound. With Rev 3, CEM filters were used, some circuits were redesigned, and the sound was not quite as big.

A Prophet 10 is essentially two Prophet 5's -with two keyboards - built into one unit.

Sequential  Prophet 5, Prophet 10
All photos are copyrighted by Syntaur, and may not be used without permission.

We stock both NEW and USED parts; all used electronic parts are tested and guaranteed working.

This listing reflects our current inventory and is updated in real time. If a part is shown as Out of Stock, we typically don't know when or if we might have it again - but click on the part for more info, and then you will be able to sign up for an alert when we do have it available again. By including out of stock parts in our listings, we hope to offer customers a more complete and useful resource.

We cannot diagnose repair issues by phone or email. For technical questions, we suggest posting on our Forums, where our techs - as well as other users - can offer help.

Sequential  Prophet 5, Prophet 10 replacement keys
Replacement Keys
AC power socket
AC power socket
$3.95 (Part #3022)
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Battery, 3V lithium
Battery, 3V lithium
$15.95 (Part #4128)
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Buss bar support, Pratt-Read
Buss bar support, Pratt-Read
$2.95 (Part #3807)
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Connector pin, female
Connector pin, female
$0.69 (Part #1350)
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Connector pin, male
Connector pin, male
$0.69 (Part #1275)
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Connector, female, 20-pin
Connector, female, 20-pin
For power supply
$10.95 (Part #1361)
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Connector, male, 20-pin
Connector, male, 20-pin
$9.95 (Part #8671)
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Connectors and wiring harness, Prophet 5
Connectors and wiring harness, Prophet 5
$34.95 (Part #5755)
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DIN connector, 5-pin, female
DIN connector, 5-pin, female
For MIDI connections, Rev 3.3 only
$2.95 (Part #5132)
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Diode, 1N4002
Diode, 1N4002
$0.95 (Part #7994)
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EPROM, Sequential Circuits Prophet 5
EPROM, Sequential Circuits Prophet 5
$19.95 (Part #1162)
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Fuse holder cap, red
Fuse holder cap, red
$7.95 (Part #5048)
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Fuse holder, black
Fuse holder, black
$19.95 (Part #2292)
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Fuse holder, red
Fuse holder, red
$19.95 (Part #5040)
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Heat sink
Heat sink
For Rev 3
$26.95 (Part #5756)
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IC, 4013 flip-flop
IC, 4013 flip-flop
$2.95 (Part #3322)
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IC, 4016 quad analog switch
IC, 4016 quad analog switch
$2.95 (Part #3302)
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IC, 40174 flip-flop (replaces 14174)
IC, 40174 flip-flop (replaces 14174)
$2.95 (Part #3305)
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IC, 4042 quad latch
IC, 4042 quad latch
$2.95 (Part #1685)
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IC, 4049 hex inverter/buffer
IC, 4049 hex inverter/buffer
$2.95 (Part #2382)
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IC, 4051 multiplexer chip
IC, 4051 multiplexer chip
$2.95 (Part #4319)
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IC, 4066 quad bilateral switch
IC, 4066 quad bilateral switch
$2.95 (Part #3723)
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IC, 4503 tri-state hex buffer
IC, 4503 tri-state hex buffer
$2.95 (Part #3045)
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IC, 4556 dual op amp
IC, 4556 dual op amp
$2.95 (Part #6858)
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IC, 5534 op amp
IC, 5534 op amp
$2.95 (Part #10890)
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IC, 6508 RAM chip
IC, 6508 RAM chip
$24.95 (Part #5338)
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IC, 723 linear regulator
IC, 723 linear regulator
$3.95 (Part #3428)
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IC, 741 op amp
IC, 741 op amp
$2.95 (Part #3297)
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IC, 74C02 NOR gate
IC, 74C02 NOR gate
$5.95 (Part #10657)
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IC, 74HC4051E multiplexer switch
IC, 74HC4051E multiplexer switch
$2.95 (Part #3301)
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IC, 74LS00N quad gate
IC, 74LS00N quad gate
$2.95 (Part #3429)
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IC, 74LS02 quad NOR gate
IC, 74LS02 quad NOR gate
$2.95 (Part #1757)
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IC, 74LS03 quad 2-input NAND gate
IC, 74LS03 quad 2-input NAND gate
$2.95 (Part #8129)
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IC, 74LS08N quad gate
IC, 74LS08N quad gate
$2.95 (Part #3394)
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IC, 74LS138 decoder/demultiplexer
IC, 74LS138 decoder/demultiplexer
$3.95 (Part #3251)
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IC, 74LS74 dual flip-flop
IC, 74LS74 dual flip-flop
$2.95 (Part #3396)
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IC, AS3280 transconductance amplifier
IC, AS3280 transconductance amplifier
$11.95 (Part #6091)
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IC, CA3082 transistor array
IC, CA3082 transistor array
$14.95 (Part #10778)
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IC, CEM3310/AS3310 envelope generator
IC, CEM3310/AS3310 envelope generator
$12.95 (Part #3716)
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IC, CEM3320 filter
IC, CEM3320 filter
$16.95 (Part #3717)
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IC, CEM3340 oscillator
IC, CEM3340 oscillator
For Prophet 5 rev 3, Prophet 10 only
$29.95 (Part #3926)
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IC, D444C SRAM chip
IC, D444C SRAM chip
$19.95 (Part #1891)
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IC, LM311 comparator
IC, LM311 comparator
$2.95 (Part #2560)
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IC, LM339N quad comparator
IC, LM339N quad comparator
$2.95 (Part #2733)
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IC, LM348N op amp
IC, LM348N op amp
$2.95 (Part #5032)
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IC, MM5837N noise generator
IC, MM5837N noise generator
$16.95 (Part #5369)
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IC, NE5534 low-noise op amp
IC, NE5534 low-noise op amp
$3.95 (Part #1658)
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IC, SSM2030 VCO
IC, SSM2030 VCO
Prophet 5, Rev 1 & 2 only
$64.95 (Part #3719)
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IC, SSM2030 VCO chip with tempco
IC, SSM2030 VCO chip with tempco
Prophet 5, Rev 1 and 2 only
$74.95 (Part #3719T)
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IC, SSM2040 VCF
IC, SSM2040 VCF
Rev 1 and 2 only
$69.95 (Part #2543)
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IC, SSM2050 envelope generator
IC, SSM2050 envelope generator
Rev 1 and 2 only
$44.95 (Part #2542)
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IC, TL072 op amp
IC, TL072 op amp
$2.95 (Part #3388)
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IC, TL081 op amp
IC, TL081 op amp
$2.95 (Part #4260)
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IC, TL082 op amp
IC, TL082 op amp
$2.95 (Part #3423)
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J-wire guide
J-wire guide
$5.95 (Part #3182)
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Key bracket, black key
Key bracket, black key
$4.95 (Part #PRKBB)
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Key bracket, white key
Key bracket, white key
$4.95 (Part #PRKB)
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Key bushing
Key bushing
$0.74 (Part #4169)
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Key bushing kit, 61-note
Key bushing kit, 61-note
$32.95 (Part #416961)
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Key return spring
Key return spring
$2.95 (Part #KYSP17)
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Key return spring
Key return spring
$3.95 (Part #KEYSPM)
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Keybed support bracket, Pratt-Read
Keybed support bracket, Pratt-Read
$6.95 (Part #3806)
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Knob, Sequential Circuits black-faced
Knob, Sequential Circuits black-faced
$12.95 (Part #4764)
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Knob, Sequential Circuits, silver-faced
Knob, Sequential Circuits, silver-faced
$12.95 (Part #4765)
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Nut, for 1/4-inch phone jack
Nut, for 1/4-inch phone jack
$0.45 (Part #4301)
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Panel switch, black, no LED
Panel switch, black, no LED
$7.95 (Part #4969)
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Panel switch, black, with LED
Panel switch, black, with LED
$10.95 (Part #4875)
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Panel switch, gray
Panel switch, gray
$7.95 (Part #3082)
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Panel switch, gray, with LED
Panel switch, gray, with LED
$9.95 (Part #4876)
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Panel switch, orange, with LED
Panel switch, orange, with LED
$9.95 (Part #4877)
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Phone jack, 1/4-inch, mono
Phone jack, 1/4-inch, mono
For all jacks except Gate In
$10.95 (Part #9099)
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Phone jack, 1/4-inch, switched
Phone jack, 1/4-inch, switched
For Gate
$10.95 (Part #9499)
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Pitch bend/mod wheel panel, Sequential Circuits
Pitch bend/mod wheel panel, Sequential Circuits
$99.95 (Part #5765)
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Potentiometer shaft
Potentiometer shaft
For all front panel pots
$9.95 (Part #7201)
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Potentiometer, 100KB rotary
Potentiometer, 100KB rotary
For pitch or mod wheel
$10.95 (Part #2650)
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Potentiometer, 10KB rotary
Potentiometer, 10KB rotary
For all front panel pots
$19.95 (Part #3036)
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Power cord
Power cord
$7.95 (Part #PC)
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Power switch, illuminated
Power switch, illuminated
$8.95 (Part #2526)
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Prophet 5 badge, small (front panel)
Prophet 5 badge, small (front panel)
$14.95 (Part #4805)
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Prophet 5 Rev 1 or 2 badge, large
Prophet 5 Rev 1 or 2 badge, large
$32.95 (Part #8845)
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Prophet 5 Rev 3 badge, large (rear panel)
Prophet 5 Rev 3 badge, large (rear panel)
$16.95 (Part #4804)
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REV -1 kit for Prophet 5
REV -1 kit for Prophet 5
$319.95 (Part #REV1)
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Ribbon cable, 12-inch with DIP connectors
Ribbon cable, 12-inch with DIP connectors
To Prophet 5 keybed
$19.95 (Part #1425)
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Ribbon cable, 60-pin, 19-inch
Ribbon cable, 60-pin, 19-inch
$17.95 (Part #4808)
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Rubber foot, 3/8-inch tall
Rubber foot, 3/8-inch tall
For Prophet 5
$1.95 (Part #4021)
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Rubber foot, 9/16-inch tall
Rubber foot, 9/16-inch tall
For Prophet 10
$3.95 (Part #4357)
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Screws, for keytops, pkg of 10
Screws, for keytops, pkg of 10
$3.95 (Part #3923)
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Sequential Circuits badge, large (back panel)
Sequential Circuits badge, large (back panel)
$16.95 (Part #4802)
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Sequential Circuits badge, small
Sequential Circuits badge, small
$14.95 (Part #4803)
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Style 34U key, black note
Style 34U key, black note
$10.95 (Part #K34UBL)
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Style 34U key, note A
Style 34U key, note A
$12.95 (Part #K34UA)
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Style 34U key, note B
Style 34U key, note B
$12.95 (Part #K34UB)
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Style 34U key, note C
Style 34U key, note C
$12.95 (Part #K34UC)
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Style 34U key, note D
Style 34U key, note D
$12.95 (Part #K34UD)
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Style 34U key, note E
Style 34U key, note E
$12.95 (Part #K34UE)
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Style 34U key, note F
Style 34U key, note F
$12.95 (Part #K34UF)
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Style 34U key, note G
Style 34U key, note G
$12.95 (Part #K34UG)
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Style 34U key, top C note
Style 34U key, top C note
$17.95 (Part #K34UC8)
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Transformer
Transformer
$67.95 (Part #4534)
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Transistor, 2N3904
Transistor, 2N3904
$1.95 (Part #5176)
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Voltage regulator, 7805
Voltage regulator, 7805
$2.95 (Part #2256)
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Voltage regulator, 78M12
Voltage regulator, 78M12
$3.95 (Part #2147)
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Voltage regulator, 7905
Voltage regulator, 7905
$2.95 (Part #2255)
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Voltage regulator, LM317
Voltage regulator, LM317
$2.95 (Part #1841)
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Voltage regulator, LM317K
Voltage regulator, LM317K
$5.95 (Part #6997)
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Voltage regulator, LM320T-15
Voltage regulator, LM320T-15
$3.95 (Part #2682)
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Voltage regulator, LM337
Voltage regulator, LM337
$2.95 (Part #2898)
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Voltage regulator, LM340T
Voltage regulator, LM340T
$3.95 (Part #2681)
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Voltage regulator, UA317UC or NTE956
Voltage regulator, UA317UC or NTE956
$6.95 (Part #2673)
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Voltage selector switch
Voltage selector switch
$8.95 (Part #1549)
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