SDMachines

SDMachines 'Severed Machines'- analog synth + drum machine repairs/modifications, keyboards, turntables, guita

70s Electronic Music Labs 101: recapped, cleaned all pots, key contacts, new key bushings, repaired vco2(wouldn’t track)...
01/30/2026

70s Electronic Music Labs 101: recapped, cleaned all pots, key contacts, new key bushings, repaired vco2(wouldn’t track) refinished stained keys, keys aligned, fully calibrated. Check out that variable VCO waveform, one of my favorite synthesizers.

60’s vintage RA Moog modular, repaired 2 VCOs (early version with fixed resistors and matching transistors), cleaned con...
01/30/2026

60’s vintage RA Moog modular, repaired 2 VCOs (early version with fixed resistors and matching transistors), cleaned controls, cleaned up messy psu terminal block, cleaned + straightened key contacts. I worked on this a couple years ago and never posted it. It came back to add and wire up a VCA and EG module.

Seeburg Select-A-Rhythm: One of my top favs. This organ top version came without the much needed footswitch, it won’t ru...
12/17/2025

Seeburg Select-A-Rhythm: One of my top favs. This organ top version came without the much needed footswitch, it won’t run without it. I made a custom switch engaged by pushing the tempo lamp housing. I’ll be selling one soon, more compact with a plexiglass face instead of the wood. Possibly with a trigger output🤔

Memorymoog: recapped psu, replaced rest of leaky capacitors, cleaned panel switches, controls, repaired glide circuit, c...
12/17/2025

Memorymoog: recapped psu, replaced rest of leaky capacitors, cleaned panel switches, controls, repaired glide circuit, calibrated. Passes tune instantly, cold or warm.

Yamaha CS80: Repaired 5 dead voices, added sockets on replaced chips,rebuilt slide controller, dead preset, replaced but...
12/17/2025

Yamaha CS80: Repaired 5 dead voices, added sockets on replaced chips,rebuilt slide controller, dead preset, replaced button lamp, cleaned controls, switches, key contacts, fully calibrated

Early 60’s Standel Ecolux tape delay: rewired heads, recapped, lubed motor, new pinch roller+ tape.
09/21/2025

Early 60’s Standel Ecolux tape delay: rewired heads, recapped, lubed motor, new pinch roller+ tape.

Classic Minimoog Model D 1977: cleaned controls, switches, recapped, refurbished key contacts, aligned keybed, calibrate...
09/21/2025

Classic Minimoog Model D 1977: cleaned controls, switches, recapped, refurbished key contacts, aligned keybed, calibrated.

Yamaha CS70M repair and mods for -repaired ENV slider, modified VCO modulation with subtle depth, added brilliance cont...
09/20/2025

Yamaha CS70M repair and mods for -repaired ENV slider, modified VCO modulation with subtle depth, added brilliance control via aftertouch + sensitivity switched on and off, highjacked by the audio output switch.

Baldwin Tempo Matic: repaired clock, bitch to work on but it’s a great little drummer with a nice alternate/ random feat...
09/20/2025

Baldwin Tempo Matic: repaired clock, bitch to work on but it’s a great little drummer with a nice alternate/ random feature.

Mega rare 60’s Philips EL 6911 tape delay: repaired heads, demagged with new tape. Heads may be repositioned for various...
09/20/2025

Mega rare 60’s Philips EL 6911 tape delay: repaired heads, demagged with new tape. Heads may be repositioned for various timing, this thing’s sick.

Boss DR 55 repair + mods: programmable HH (P-OFF-8-12/16) The far left position allows the accent to program the HH.. Th...
09/20/2025

Boss DR 55 repair + mods: programmable HH (P-OFF-8-12/16) The far left position allows the accent to program the HH.. The accent still works as original. Mini controls added without the bulky breakout box-BDpitch 12:00= original pitch, BDdecay 12:00= original decay, SN noise decay full CW=original snare. Global Noise control for HH and snare 12:00 = original noise).

Sequential Six Trak x2 : Great little sketch tool. Corrected shoddy previous work, fully recapped, bad logic chip+ clock...
10/22/2024

Sequential Six Trak x2 : Great little sketch tool. Corrected shoddy previous work, fully recapped, bad logic chip+ clock divider, dead keys, new ram batteries, factory presets loaded.

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