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===Files and Links=== * [[File:Oberheim-OB-8-Manual.pdf]] * [[File:Oberheim-OB-8-Service-Manual.pdf]] * [[File:Oberheim_OB-8_MIDI_Spec.pdf]] * [[File:Oberheim-OB-8-Calibration-Procedure.pdf]] * [[File:Oberheim-OB-8-Schematic.pdf]] * [[File:Oberheim-OB-8-Board-Layout-Diagrams.pdf]] * [http://grahamenglish.s3.amazonaws.com/Oberheim-OB-8-Factory-Sounds-8bit-11kHz.wav Oberheim OB-8 Factory Sounds 8bit 11kHz.wav] * [http://grahamenglish.s3.amazonaws.com/Oberheim-OB-8-Factory-Sounds.syx Oberheim OB-8 Factory Sounds.syx] * [http://grahamenglish.s3.amazonaws.com/Oberheim-OB-8-Kid-Nepro-Bank.syx Oberheim OB-8 Kid Nepro Bank.syx] * [http://grahamenglish.s3.amazonaws.com/Oberheim-OB-8-Tony-Cappellini-Bank.syx Oberheim OB-8 Tony Cappellini Bank.syx] * [http://grahamenglish.s3.amazonaws.com/Oberheim-OB-8-A8-Operating-System-EPROM-Images.zip Oberheim-OB-8-A8-Operating-System-EPROM-Images.zip] * [http://grahamenglish.s3.amazonaws.com/Oberheim-OB-8-B5-Operating-System-EPROM-Images.zip Oberheim-OB-8-B5-Operating-System-EPROM-Images.zip] * [http://analog.no/cms/index.php/factory-patches Factory Patches] * [http://www.vintagesynth.com/oberheim/ob8.php?comments_page=1#comments_anchor Vintage Synth Explorer] * [http://www.sonicstate.com/synth/oberheim_ob-8/ Sonic State] * [http://www.synthmania.com/ob-8.htm Synthmania] * [http://www.synthmuseum.com/oberheim/obeob801.html Synth Museum] * [http://www.soundonsound.com/sos/sep98/articles/retro_oberheim.html Sound on Sound] * [http://en.wikipedia.org/wiki/Oberheim_OB-8 Wikipedia] * [http://www.gforcesoftware.com/extras/syntharchive/oberheimob8 OB-8 Tips] * [http://www.virtual-music.at/webseiten_e/zubehoer/oberheim.htm Synth Services Oberheim Zone] * [http://www.kidnepro.com/KN/Oberheim/OB8.html Patch King] * [http://soundcloud.com/nordkeyboards/ob-8 Nord OB-8 on Soundcloud] * [http://www.tcapp.com/pub/synths/oberheim_heaven/ob8/ Oberheim Heaven] * [http://home.swipnet.se/cfmd/synths/companies/oberheim/#ECO439 Magnus Oberheim Page] * [http://keycorner.org/pub/midi/ob/OB8_obscurities.txt OB-8 Obscurities] ===Specifications=== * Polyphony - 8 voices * Oscillators - 2 vco's per voice: saw, pulse, triangle * Memory - 120 patch programs, 12 split programs, and 12 double programs; external cassette storage; MIDI SysEx data dump * Filter - Switchable 2-pole or 4-pole VCF w/ ADSR * LFO - Triangle, Square, Ramp, Samp+Hold * Keyboard - 61 keys (can be split or doubled); no velocity or aftertouch * Arpeg/Seq - 8-note arpeggiator with external sync source * Control - MIDI (Channels 1-9) added as a retrofit * Date Produced - 1983 - 1985 ===Images and Video=== [[Image:Oberheim-OB-8-Yamaha-CP-70.jpg|Oberheim OB-8 and Yamaha CP-70]] {{#widget:YouTube|id=Hh9Px6VdUVo}} {{#widget:YouTube|id=4kuLB8lB7sQ}} ===Factory Patches=== {| class="wikitable" |- ! scope="col" colspan="10"| Program |- ! scope="row" rowspan="21"| Group |- ! scope="col"| ! scope="col"| 1 ! scope="col"| 2 ! scope="col"| 3 ! scope="col"| 4 ! scope="col"| 5 ! scope="col"| 6 ! scope="col"| 7 ! scope="col"| 8 |- ! scope="row"| A | Brass Ensemble | St. Genevieve | String Ensemble | Vibes | Accelerating Rotary Organ | Whistle | Repeat | Bouncing Ball |- ! scope="row"| B | Dem Bones | Clavinet | High Strings | Digital Piano | Cathedral Organ | Chorus | Pulse Sweep | Calliope |- ! scope="row"| AB | French Horns | Bass 1 | Bright Strings | Electric Piano | Rotary Organ | Bagpipes | Quantized LFO | Rush Rezz |- ! scope="row"| C | Trumpet | Magic Clavinet | Slow Strings | Resonance Sweep | Combo Organ | Double Reed | Farr’s Funk | FM |- ! scope="row"| AC | Trumpet Ensemble | Bass 2 | Four Pole Strings | Reed Piano | Circus Organ | Sax | Harp | Distortion Solo |- ! scope="row"| BC | Tropical Horns | Rubber Clavinet | Strings 2 | Klink Piano | Hymn Organ | Recorder | Long Chimes | Percussive Solo |- ! scope="row"| ABC | Comp Horns | Bells | Four Pole Strings 2 | Soft Piano | Birds | Vocal Wow | Marimbas | Rock Unison |- ! scope="row"| D | Delayed Octave | Trig Pulse Width | Polyphonic Portamento | Steel Drums | Square Mod | Comp Synth | Unison Portamento | Delay Mod |- ! scope="row"| AD | Swell Horns | Sitar | Fiddle | Saw Piano | Pulse Width Rezz | Triangle Comp | Jazz Solo | Earthquake |- ! scope="row"| BD | S/H Port Rezz | Conga | Strings 3 | Funky Keys | Fading Detune | Tremolo Rezz | Box O’ Pops | Stereo Spin |- ! scope="row"| ABD | Decelerate | Carillon | Solo Strings | Detuned Long Piano | Filter Drone | 3 Way | Harmonic Percussion | Chopper |- ! scope="row"| CD | Tuned Portamento | Alien Craft | Strings 4 | Pulse Width Mod | Whippets | Metal Solo | Clave | Jet |- ! scope="row"| ACD | Water Wiggle | Stripper Sax | Rosin Strings | Flanged Piano | Saw Mod | Impact | Thunder | Start Engines |- ! scope="row"| BCD | | | | | | | | |- ! scope="row"| ABCD | | | | | | | | |- ! scope="row"| Splits | Organ/Poly Port | Dem Bones/Strings | Steel Drums/Conga | Rock Unison/Conga | | | | |- ! scope="row"| Doubles | Octave Clavinet | Double Strings | Bells in Fourths | Strings in Heaven | | | | |- ! scope="row" rowspan="2"| Splits/Doubles | A | B | C | D | A | B | C | D |- | Strings/Brass | Farr's Funk/Repeat | Organ/Bass | St. Gene/Piano | Piano/Strings in Fifths | Percussive Organ | Octave Organ | Strings and Brass |} ===Details=== Purchased: 10-6-12 Repair 04-25-13: Fixed power supply, internal cleaning, new higher capacitance and voltage rating caps, new bridge rectifiers bumped way up in current capacity and voltage ratings, voltage regulators were all high current output and rock solid 5 VDC for the Digital circuits of the OB8, battery replaced with a holder so in 5 to 7 years I can change the battery myself. [[category:Music]] [[category:Instruments]] [[category:Gear]] [[category:Audio]] [[category:Keyboards]] __NOEDITSECTION__

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