Oberheim OB-8
Released in 1983The OB-8 is a wonderful analog synth with 8-note polyphony and two oscillators per voice. It has a switchable 2-pole/4-pole filter, an 8-note arpeggiator, and 120 program storage locations.
There were two versions of keybeds used in the OB-8; early models used a Pratt-Read keybed (K34U keys), while later models used a Matsushita keybed (K32U keys). It's important to determine which model you have before ordering any keybed parts.
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.
Battery, 3V lithium
$14.95 (Part #4128)
Click for details
$14.95 (Part #4128)
Bridge rectifier, W04M
$3.95 (Part #1596)
Click for details
$3.95 (Part #1596)
Bridge rectifier, WO-02S
$3.95 (Part #5145)
Click for details
$3.95 (Part #5145)
Clip for keyboard contact board
For later OB-8 with K32U keys
$0.55 (Part #4348)
Click for details
For later OB-8 with K32U keys
$0.55 (Part #4348)
Contact strip, 6-note
For later OB-8 with K32U keys
$12.95 (Part #4350)
Click for details
For later OB-8 with K32U keys
$12.95 (Part #4350)
Contact strip, 7-note
For later OB-8 with K32U keys
$15.95 (Part #4349)
Click for details
For later OB-8 with K32U keys
$15.95 (Part #4349)
Diode, 1N4148
$0.95 (Part #3788)
Click for details
$0.95 (Part #3788)
DIP connector, 16-pin
$4.95 (Part #1926)
Click for details
$4.95 (Part #1926)
IC, 1458 op amp
$2.95 (Part #3685)
Click for details
$2.95 (Part #3685)
IC, 3080 OTA
$8.95 (Part #3298)
Click for details
$8.95 (Part #3298)
IC, 4011 quad gate
$2.95 (Part #3391)
Click for details
$2.95 (Part #3391)
IC, 4016 quad analog switch
$2.95 (Part #3302)
Click for details
$2.95 (Part #3302)
IC, 40174 flip-flop (replaces 14174)
$2.95 (Part #3305)
Click for details
$2.95 (Part #3305)
IC, 4028 decoder
$2.95 (Part #1945)
Click for details
$2.95 (Part #1945)
IC, 4051 multiplexer chip
$2.95 (Part #4319)
Click for details
$2.95 (Part #4319)
IC, 4053 multiplexer switch
$2.95 (Part #3413)
Click for details
$2.95 (Part #3413)
IC, 4066 quad bilateral switch
$2.95 (Part #3723)
Click for details
$2.95 (Part #3723)
IC, 68B50P ACIA chip
$10.95 (Part #1742)
Click for details
$10.95 (Part #1742)
IC, 6N138 optocoupler
$2.95 (Part #2892)
Click for details
$2.95 (Part #2892)
IC, 723 linear regulator
$3.95 (Part #3428)
Click for details
$3.95 (Part #3428)
IC, 741 op amp
$2.95 (Part #3297)
Click for details
$2.95 (Part #3297)
IC, 7416N hex inverter buffer/driver
$6.95 (Part #5184)
Click for details
$6.95 (Part #5184)
IC, 74HC00 quad 2-input NAND gate
$1.95 (Part #8391)
Click for details
$1.95 (Part #8391)
IC, 74HC174 flip-flop
$2.95 (Part #4267)
Click for details
$2.95 (Part #4267)
IC, 74LS02 quad NOR gate
$2.95 (Part #1757)
Click for details
$2.95 (Part #1757)
IC, 74LS04 hex inverter
$2.95 (Part #3147)
Click for details
$2.95 (Part #3147)
IC, 74LS08N quad gate
$2.95 (Part #3394)
Click for details
$2.95 (Part #3394)
IC, 74LS139 decoder/demultiplexer
$2.95 (Part #4263)
Click for details
$2.95 (Part #4263)
IC, 74LS174 flip-flop
$2.95 (Part #3149)
Click for details
$2.95 (Part #3149)
IC, 74LS244 buffer/line driver
$2.95 (Part #3424)
Click for details
$2.95 (Part #3424)
IC, 74LS245 bus transceiver
$2.95 (Part #3395)
Click for details
$2.95 (Part #3395)
IC, 74LS32N quad gate
$2.95 (Part #4262)
Click for details
$2.95 (Part #4262)
IC, 74LS367 buffer/line driver
$3.95 (Part #4224)
Click for details
$3.95 (Part #4224)
IC, 74LS374 flip-flop
$2.95 (Part #4215)
Click for details
$2.95 (Part #4215)
IC, 74LS42 monostable multivibrator
$4.95 (Part #4190)
Click for details
$4.95 (Part #4190)
IC, 74LS74 dual flip-flop
$2.95 (Part #3396)
Click for details
$2.95 (Part #3396)
IC, CEM3310/AS3310 envelope generator
$12.95 (Part #3716)
Click for details
$12.95 (Part #3716)
IC, CEM3320 filter
$16.95 (Part #3717)
Click for details
$16.95 (Part #3717)
IC, CEM3340 oscillator
$29.95 (Part #3926)
Click for details
$29.95 (Part #3926)
IC, CEM3360/AS3360 VCA chip
$11.95 (Part #4063)
Click for details
$11.95 (Part #4063)
IC, HS3140C D/A converter
$37.95 (Part #2608)
Click for details
$37.95 (Part #2608)
IC, LM301 op amp
$4.95 (Part #3300)
Click for details
$4.95 (Part #3300)
IC, LM311 comparator
$2.95 (Part #2560)
Click for details
$2.95 (Part #2560)
IC, TL072 op amp
$2.95 (Part #3388)
Click for details
$2.95 (Part #3388)
IC, TL081 op amp
$2.95 (Part #4260)
Click for details
$2.95 (Part #4260)
IC, TL082 op amp
$2.95 (Part #3423)
Click for details
$2.95 (Part #3423)
IC, TL084 op amp
$2.95 (Part #4192)
Click for details
$2.95 (Part #4192)
Key bracket, black key
For early OB-8 with K34U keys
$4.95 (Part #PRKBB)
Click for details
For early OB-8 with K34U keys
$4.95 (Part #PRKBB)
Key bracket, white key
For early OB-8 with K34U keys
$4.95 (Part #PRKB)
Click for details
For early OB-8 with K34U keys
$4.95 (Part #PRKB)
Key bushing
For early OB-8 with K34U keys
$0.70 (Part #4169)
Click for details
For early OB-8 with K34U keys
$0.70 (Part #4169)
Key bushing kit, 61-note
For early OB-8 with K34U keys
$32.95 (Part #416961)
Click for details
For early OB-8 with K34U keys
$32.95 (Part #416961)
Key contact board, 24-note
For later OB-8 with K32U keys
$29.95 (Part #8288)
Click for details
For later OB-8 with K32U keys
$29.95 (Part #8288)
Key contact board, 37-note
For later OB-8 with K32U keys
$39.95 (Part #8287)
Click for details
For later OB-8 with K32U keys
$39.95 (Part #8287)
Key return spring
For black keys, earlier OB-8 with K34U keys
$2.95 (Part #KYSP16)
Click for details
For black keys, earlier OB-8 with K34U keys
$2.95 (Part #KYSP16)
Key return spring
For later OB-8 with K32U keys
$0.75 (Part #KEYSP8)
Click for details
For later OB-8 with K32U keys
$0.75 (Part #KEYSP8)
Key return spring
For white keys, earlier OB-8 with K34U keys
$3.95 (Part #KEYSPM)
Click for details
For white keys, earlier OB-8 with K34U keys
$3.95 (Part #KEYSPM)
Key return springs, package of 10
For later OB-8 with K32U keys
$5.95 (Part #KEYSP8X)
Click for details
For later OB-8 with K32U keys
$5.95 (Part #KEYSP8X)
Keybed cushion, 61-note
For later OB-8 with K32U keys
$10.95 (Part #4795)
Click for details
For later OB-8 with K32U keys
$10.95 (Part #4795)
Knob, rotary, Oberheim
$14.95 (Part #1889)
Click for details
$14.95 (Part #1889)
MIDI board, Oberheim OB-8
$129.95 (Part #8276)
Click for details
$129.95 (Part #8276)
Panel switch, black, with LED
$9.95 (Part #4875)
Click for details
$9.95 (Part #4875)
Panel switch, wide, black with LED
$11.95 (Part #2987)
Click for details
$11.95 (Part #2987)
Phone jack, 1/4-inch, mono
For Mono Output
$7.95 (Part #1949)
Click for details
For Mono Output
$7.95 (Part #1949)
Phone jack, 1/4-inch, TRS
For Foot Switches, Arpeggiator
$6.95 (Part #4622)
Click for details
For Foot Switches, Arpeggiator
$6.95 (Part #4622)
Power cord
$7.95 (Part #PC)
Click for details
$7.95 (Part #PC)
Power switch, illuminated
$9.95 (Part #5008)
Click for details
$9.95 (Part #5008)
Rubber foot, 5/8-inch tall
$7.95 (Part #1936)
Click for details
$7.95 (Part #1936)
Screws, for keytops, pkg of 10
For early OB-8 with K34U keys
$3.95 (Part #3923)
Click for details
For early OB-8 with K34U keys
$3.95 (Part #3923)
Style 32U key, black note
For later OB-8
$9.95 (Part #K32UBL)
Click for details
For later OB-8
$9.95 (Part #K32UBL)
Style 32U key, note A
For later OB-8
$12.95 (Part #K32UA)
Click for details
For later OB-8
$12.95 (Part #K32UA)
Style 32U key, note B
For later OB-8
$12.95 (Part #K32UB)
Click for details
For later OB-8
$12.95 (Part #K32UB)
Style 32U key, note C
For later OB-8
$12.95 (Part #K32UC)
Click for details
For later OB-8
$12.95 (Part #K32UC)
Style 32U key, note D
For later OB-8
$12.95 (Part #K32UD)
Click for details
For later OB-8
$12.95 (Part #K32UD)
Style 32U key, note E
For later OB-8
$12.95 (Part #K32UE)
Click for details
For later OB-8
$12.95 (Part #K32UE)
Style 32U key, note F
For later OB-8
$12.95 (Part #K32UF)
Click for details
For later OB-8
$12.95 (Part #K32UF)
Style 32U key, note G
For later OB-8
$12.95 (Part #K32UG)
Click for details
For later OB-8
$12.95 (Part #K32UG)
Style 32U key, top C note
For later OB-8
$17.95 (Part #K32UC8)
Click for details
For later OB-8
$17.95 (Part #K32UC8)
Style 34U key, black note
For early OB-8
$10.95 (Part #K34UBL)
Click for details
For early OB-8
$10.95 (Part #K34UBL)
Style 34U key, note A
For early OB-8
$12.95 (Part #K34UA)
Click for details
For early OB-8
$12.95 (Part #K34UA)
Style 34U key, note B
For early OB-8
$12.95 (Part #K34UB)
Click for details
For early OB-8
$12.95 (Part #K34UB)
Style 34U key, note C
For early OB-8
$12.95 (Part #K34UC)
Click for details
For early OB-8
$12.95 (Part #K34UC)
Style 34U key, note D
For early OB-8
$12.95 (Part #K34UD)
Click for details
For early OB-8
$12.95 (Part #K34UD)
Style 34U key, note E
For early OB-8
$12.95 (Part #K34UE)
Click for details
For early OB-8
$12.95 (Part #K34UE)
Style 34U key, note F
For early OB-8
$12.95 (Part #K34UF)
Click for details
For early OB-8
$12.95 (Part #K34UF)
Style 34U key, note G
For early OB-8
$12.95 (Part #K34UG)
Click for details
For early OB-8
$12.95 (Part #K34UG)
Style 34U key, top C note
For early OB-8
$17.95 (Part #K34UC8)
Click for details
For early OB-8
$17.95 (Part #K34UC8)
Transistor, 2N3055
$7.95 (Part #5245)
Click for details
$7.95 (Part #5245)
Transistor, 2N3905
$1.95 (Part #7447)
Click for details
$1.95 (Part #7447)
Transistor, 2N5172
$1.95 (Part #3295)
Click for details
$1.95 (Part #3295)
Trim potentiometer, 10K
For Voice Panning (side panel)
$6.95 (Part #9915)
Click for details
For Voice Panning (side panel)
$6.95 (Part #9915)
Voice board, lower, Oberheim OB-8
$599.95 (Part #9332)
Click for details
$599.95 (Part #9332)
Voice board, upper, Oberheim OB-8
$599.95 (Part #9236)
Click for details
$599.95 (Part #9236)
Voltage regulator, 7805
$2.95 (Part #2256)
Click for details
$2.95 (Part #2256)
Voltage regulator, 7915
$3.95 (Part #3415)
Click for details
$3.95 (Part #3415)
Washer, beveled nylon insert
$0.95 (Part #2913)
Click for details
$0.95 (Part #2913)
Washer, beveled steel
$0.95 (Part #2914)
Click for details
$0.95 (Part #2914)
Washer, black, for end panel
$0.95 (Part #9490)
Click for details
$0.95 (Part #9490)