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Korg Poly800/EX800 Users

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Index last updated: 2026-03-30 01:10 UTC

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AlbumTitlePreviewDescription
Aaron';s Poly 800 ModsBattery Mod 2.jpgBattery Mod 2.jpg
Aaron';s Poly 800 ModsBattery Mod 1.jpgBattery Mod 1.jpg
Aaron';s Poly 800 ModsDSC_0979DSC_0979
Aaron';s Poly 800 ModsDSC_0976DSC_0976
Aaron';s Poly 800 ModsDSC_0984DSC_0984
Aaron';s Poly 800 ModsDSC_0989DSC_0989
Aaron';s Poly 800 ModsDSC_0985DSC_0985
Aaron';s Poly 800 ModsDSC_0995DSC_0995
Aaron';s Poly 800 ModsDSC_0981DSC_0981
Aaron';s Poly 800 ModsDSC_0975DSC_0975
Aaron';s Poly 800 ModsDSC_0977DSC_0977
Aaron';s Poly 800 ModsDSC_0982DSC_0982
Aaron';s Poly 800 ModsDSC_0991DSC_0991
Aaron';s Poly 800 ModsDSC_0990DSC_0990
Dave's Poly 800DSC02280DSC02280Original state. Notice the missing joystick
Dave's Poly 800DSC02339DSC02339Looks bad, doesn't it?
Dave's Poly 800DSC02358DSC02358Nasty holes
Dave's Poly 800DSC02362DSC02362FActory/MS toggle and 12/24 switches, Cutoff, Reso
Dave's Poly 800DSC02369DSC02369vcf audio input, previously described mods, FM 800, noise switch and pot
Dave's Poly 800halfway thru ithalfway thru itnotice some old switches still there
Dave's Poly 800all switches replacedall switches replacednotice the padding for keeping buttons in place I had to add
Dave's Poly 800DSC02379DSC02379original VR's kept for factory settings
Dave's Poly 800cables soldered pins 5 and 6cables soldered pins 5 and 6cables soldered to filter chip for 12/24 dB filter slope capabilities
Dave's Poly 800C103 capacitor desoldered for 12/24dBC103 capacitor desoldered for 12/24dBnotice the heatshrink tubing on the capacitor';s disoldered leg
Dave's Poly 800Schem. for 12/24 dB filter cutoff slopeSchem. for 12/24 dB filter cutoff slope
EX800 pushbuttonsTM1-01aTM1-01a
EX800 pushbuttonsKLM614-1KLM614-1
EX800 pushbuttonsTM1-01bTM1-01b
Encoder ProjectRough Encoder CircuitRough Encoder Circuit
H ex800H ex 800 by Ron ZakrinH ex 800 by Ron Zakrinmods: Moogslayerfilter+FM 800 mod(atomsmasher)12/24dB swtchble fltr, noise mod, noisemodulationmod, ext audio in mod.
HAWK-800 and AtomaHawkThe first AtomaHawkThe first AtomaHawkThe very first installed AtomaHawk kit
Korg Poly 800 (inverse keys) pricepoly800poly800
Le Freak Poly 800Le Freak front 1Le Freak front 1
Le Freak Poly 800Le Freak front 2Le Freak front 2
Le Freak Poly 800Le Freak backLe Freak back
MiscellaneousPoly-800 advertisementPoly-800 advertisementfrom August 1984 Keyboard Magazine
MiscellaneousPoly800Poly800
MiscellaneousPoly800---1Poly800---1
MiscellaneousP800 SeqP800 Seq
MiscellaneousProgram List 1 to 18Program  List 1 to 18
MiscellaneousKorg Poly 800 PGM chartKorg Poly 800 PGM chart
MiscellaneousKorg800_FlowchartKorg800_Flowchart
Miscellaneousmetallic poly 800metallic poly 800
MiscellaneousTom's EX-800 with Moog SlayerTom's  EX-800 with Moog Slayer
MiscellaneousTom's EX-800 with Moog Slayer---1Tom's  EX-800 with Moog Slayer---1
MiscellaneousMVC-038SMVC-038S
MiscellaneousNJM-2069NJM-2069
MiscellaneousBattery replacementBattery replacement
Miscellaneouspoly 80'spoly 80's
MiscellaneousThe-Ridiculous-Fashion-Album-Covers-Of-1970s-Swedish-Bands-15The-Ridiculous-Fashion-Album-Covers-Of-1970s-Swedish-Bands-15
Poly-61 Joystick fix. Same as Poly-800?JoystickJoystick
Poly-61 Joystick fix. Same as Poly-800?MechanismMechanism
Poly-61 Joystick fix. Same as Poly-800?Machined TopMachined Top
Poly-61 Joystick fix. Same as Poly-800?Cut-away SidesCut-away Sides
Poly-61 Joystick fix. Same as Poly-800?Glued InGlued In
Poly-61 Joystick fix. Same as Poly-800?InsertionInsertion
Poly-61 Joystick fix. Same as Poly-800?Craft Foam SquareCraft Foam Square
Poly800 ModificationsDscf0314Dscf0314Modification overview: all green wires are new
Poly800 ModificationsDscf0324Dscf0324These two switches do the same as the ones on the rear side: write en-/disabling for sequence and sound programs. These switches are in parallel to the origin ones, they're directly connected to the rear switches
Poly800 ModificationsDscf0323Dscf0323All my mods: 2 knobs (I changed to cooler ones now), 3 switches. Rectangular slide switches (like on the rear side) may look more origin to this synth of 1983, but for the ones you see I simply need circular holes. Labels missing!
Poly800 ModificationsDscf0321Dscf0321upper PCB edge: 2 x 2 wires coming from the write enabling switches (have to remove some PCB material there), and 2 x 2 wires from the two pots - you only need 2 per pot
Poly800 ModificationsDscf0320Dscf0320there's enough place for both write enabling switches - you don't have to remove the PCB with the LEDs
Poly800 ModificationsDscf0317Dscf0317Another view of the wires in the removed pot's places
Poly800 ModificationsDscf0316Dscf0316Cannot describe this with words! I'll add a schematic ......
Poly800 Modificationsschematicschematic
Poly800 ModificationsMoogSlayerMoogSlayer
Poly800 ModificationsMoog Slayer-FM800-Audio IN-VCF CV IN-3Moog Slayer-FM800-Audio IN-VCF CV IN-3
Poly800 ModificationsMoog Slayer-FM800-Audio IN-VCF CV IN-1Moog Slayer-FM800-Audio IN-VCF CV IN-1
Poly800 ModificationsMoog Slayer-FM800-Audio IN-VCF CV IN-2Moog Slayer-FM800-Audio IN-VCF CV IN-2
Spotted on stagewinehouse 800-1winehouse 800-1
Spotted on stagewinehouse 800-2winehouse 800-2
Spotted on stagewinehouse 800-3winehouse 800-3
Spotted on stagewinehouse 800-4winehouse 800-4
Spotted on stagewinehouse 800-5winehouse 800-5
Spotted on stagewinehouse 800-6winehouse 800-6
Unknown ModWP_20140602_002WP_20140602_002
Unknown ModWP_20140531_002WP_20140531_002
Yash';s Ergonomic Korg Poly-800 modsErgonomic Moog Slayer, 12/24dB, FM-800Ergonomic Moog Slayer, 12/24dB, FM-800
Yash';s Ergonomic Korg Poly-800 modsExternal Audio to VCF, Osc mix signalsExternal Audio to VCF, Osc mix signals
poly-800 - wiring modificationChorus - feedback drawingChorus - feedback drawingSchematics of feedback connection. Replace previous informative drawing.
poly-800 - wiring modificationChorus - feedback realizationChorus - feedback realizationConnection of feedback potentiometer.
poly-800 - wiring modificationChorus - MN3209 datasheet circuitChorus - MN3209 datasheet circuitIn datasheet clock is driven with resistor + capacitor
poly-800 - wiring modificationChorus - clock modulationChorus - clock modulationCuted clock-modulation signal (pin 7 of MN3102), added resistor + capacitor.
poly-800 - wiring modificationPoly800 block diagram + modulation I/OPoly800 block diagram + modulation I/OHand drawed Poly800 block diagram with possible inputs/outputs for cross-modulation.It shows like I thought about it...
poly800II modded after olafpoly800IIpoly800IIin my enthusiasm, i failed to take any photos during the modding, however olaf's album shows it all.
poly800II modded after olafthe controlsthe controlsparts from akihabara, tokyo's electronics town
poly800II modded after olafclose up of the controlsclose up of the controlsi believe my exterior work is more interesting than my soldering!
poly800II modded after olafpoly800II meets midi thereminpoly800II meets midi thereminmy midi theremin triggering the poly800 allows for free handed control of the cut off and resonance, and alot of noise