Tuesday, July 21, 2020
Interference Overview and Tutorial
Omri Cohen
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Vintage ARP Omni 1 Keyboard Synthesizer Overhauled with LED Sliders SN 2483 1698
Note: Auction links are affiliate links for which the site may be compensated.
Synth Chaser
via this auction
"This synthesizer has just been fully serviced by Synthchaser, the United States' top ARP specialist - recapped, new key bushings, new LED sliders, new reliable pushbutton switches, clean, fully functional, calibrated, in tune and sounding great. This keyboard is the sound of Joy Division and is all over The Cars' "Moving In Stereo", and many other late 70's/early 80's albums. It produces the lush Solina/String Ensemble sounds plus has a polyphonic synthesizer section with a voltage controlled filter, LFO, and ADSR, and a dedicated bass synthesizer section.
Has a some scratches on the case, which is common to these synths, see photos. However, the keyboard sounds great and has been completely overhauled inside with hundreds of dollars of new parts and many of hours of labor, including:
Synthchaser Precision LED slider upgrade. All 15 of the old original sliders have been replaced with new, smooth, high precision LED illuminated sliders. The difference in the way these sliders feel and perform compared to the originals is a huge improvement. The LED colors match the color scheme of the panel graphics.
Illuminated slider caps - Slider caps with a translucent plastic stripe that allows the LED illumination to shine through, while giving you something substantial to grip onto. I just started using these caps, and they look and feel awesome!
Synthchaser replacement pushbutton switches - All 10 of the original pushbutton switches (which are notorious for having the mechanical latches break) have been replaced with retrofits. The original switch caps are still installed so they look the same from the outside.
Power supply rebuilt - All tantalum and electrolytic capacitors in the power supply have been replaced, and high quality, high temperature 105 deg C capacitors have been used for the power supply filter capacitors.
All tantalum capacitors replaced - The tantalum capacitors in ARP synths are ticking time bombs. All of the over 100 tantalum capacitors in this synth have been replaced with electrolytics to help provide stable operation for years to come.
Synthchaser 4075 Filter Enhancement Kit Installed - The ARP Omni uses the same 4075 filter submodule found in the Odyssey, Quadra, Avatar, and Pro DGX. This has been recapped, and enhanced to provide superior frequency response.
Keyboard rebuild - New key bushings installed, buss bar & key contacts cleaned, key contacts adjusted, and keys ultrasonically cleaned
Oscilloscope calibration - Fully calibrated to factory spec using oscilloscope and frequency counter."
Synth Chaser
via this auction
"This synthesizer has just been fully serviced by Synthchaser, the United States' top ARP specialist - recapped, new key bushings, new LED sliders, new reliable pushbutton switches, clean, fully functional, calibrated, in tune and sounding great. This keyboard is the sound of Joy Division and is all over The Cars' "Moving In Stereo", and many other late 70's/early 80's albums. It produces the lush Solina/String Ensemble sounds plus has a polyphonic synthesizer section with a voltage controlled filter, LFO, and ADSR, and a dedicated bass synthesizer section.Has a some scratches on the case, which is common to these synths, see photos. However, the keyboard sounds great and has been completely overhauled inside with hundreds of dollars of new parts and many of hours of labor, including:
Synthchaser Precision LED slider upgrade. All 15 of the old original sliders have been replaced with new, smooth, high precision LED illuminated sliders. The difference in the way these sliders feel and perform compared to the originals is a huge improvement. The LED colors match the color scheme of the panel graphics.
Illuminated slider caps - Slider caps with a translucent plastic stripe that allows the LED illumination to shine through, while giving you something substantial to grip onto. I just started using these caps, and they look and feel awesome!
Synthchaser replacement pushbutton switches - All 10 of the original pushbutton switches (which are notorious for having the mechanical latches break) have been replaced with retrofits. The original switch caps are still installed so they look the same from the outside.
Power supply rebuilt - All tantalum and electrolytic capacitors in the power supply have been replaced, and high quality, high temperature 105 deg C capacitors have been used for the power supply filter capacitors.
All tantalum capacitors replaced - The tantalum capacitors in ARP synths are ticking time bombs. All of the over 100 tantalum capacitors in this synth have been replaced with electrolytics to help provide stable operation for years to come.
Synthchaser 4075 Filter Enhancement Kit Installed - The ARP Omni uses the same 4075 filter submodule found in the Odyssey, Quadra, Avatar, and Pro DGX. This has been recapped, and enhanced to provide superior frequency response.
Keyboard rebuild - New key bushings installed, buss bar & key contacts cleaned, key contacts adjusted, and keys ultrasonically cleaned
Oscilloscope calibration - Fully calibrated to factory spec using oscilloscope and frequency counter."
RC CIRCUIT BENT 'The Chantizer' Tibetan Drone Mantra Machine Buddha Glitch Synth
Note: Auction links are affiliate links for which the site may be compensated.
ResonanceCircuits
via this auction
"A tibetan chant sound generator capable of demonic speech, haunting sacred chants, deviant drone sequencers and full on industrial noise.
Features:
power on/off switch
'on' led indicator
output envelope lamp - provides a visual of the mutating output signal
chant rate control - from tranquil chants to demonic possession
chant length control - sets the end point of the loop
chant start control - sets the starting point of the loop
1/4" jack output
powered by 9v DC input, negative centre polarity, 100-800mA.
(not included)
Case Dimensions: 10x10x4cm (excluding height of controls)
Custom circuit and design by ResonanceCircuits"
ResonanceCircuits
via this auction
"A tibetan chant sound generator capable of demonic speech, haunting sacred chants, deviant drone sequencers and full on industrial noise.
Features:
power on/off switch
'on' led indicator
output envelope lamp - provides a visual of the mutating output signal
chant rate control - from tranquil chants to demonic possession
chant length control - sets the end point of the loop
chant start control - sets the starting point of the loop
1/4" jack output
powered by 9v DC input, negative centre polarity, 100-800mA.
(not included)
Case Dimensions: 10x10x4cm (excluding height of controls)
Custom circuit and design by ResonanceCircuits"
Shruthi Analogue/Digital hybrid synth & SMR4 MkII filter
Note: Auction links are affiliate links for which the site may be compensated.
via this auction
"Near new condition Black Gloss Shruthi SMR4 MkII. Fully loaded with 512 patches. This thing is a real beast."
via this auction
"Near new condition Black Gloss Shruthi SMR4 MkII. Fully loaded with 512 patches. This thing is a real beast."
White Model Oberheim Matrix 1000
Yamaha TF1 Synth Module for TX816
Note: Auction links are affiliate links for which the site may be compensated.
via this auction
Some pics of the inside / circuit board.
via this auction
Some pics of the inside / circuit board.
Baldwin Discoverer DS-50 Electronic Organ w/ Original Box SN 2801094
Note: Auction links are affiliate links for which the site may be compensated.
via this auction
"Baldwin Discoverer DS-50 electronic organ. This comes with the original box, owner's manual/playing guide, and power cord. The unit is in excellent condition and was stored in the original box for many years. It is fully functional, plays and sounds great."
via this auction
"Baldwin Discoverer DS-50 electronic organ. This comes with the original box, owner's manual/playing guide, and power cord. The unit is in excellent condition and was stored in the original box for many years. It is fully functional, plays and sounds great."
Korg Sigma KP-30 Monophonic Analog Synthesizer SN 0359
Note: Auction links are affiliate links for which the site may be compensated.
via this auction, also on Reverb
via this auction, also on Reverb
Alien Devices Modded Roland TR-707 Analog Drum Rhythm Machine SN 562762
Note: Auction links are affiliate links for which the site may be compensated.
via this auction
"Circuit-bent TR-707 by Alien Devices. The toggle switches along the sides of top of the drum machine create different kinds of circuit bent noises when switched on. If the switches are not turned on, it will operate like a normal TR-707. Do not turn all the switches on at once or the drum machine will turn-off and you will need to turn some switches off to reboot. Although it has some scratches and does not look new, it is fairly clean and is in good operating condition."
via this auction
"Circuit-bent TR-707 by Alien Devices. The toggle switches along the sides of top of the drum machine create different kinds of circuit bent noises when switched on. If the switches are not turned on, it will operate like a normal TR-707. Do not turn all the switches on at once or the drum machine will turn-off and you will need to turn some switches off to reboot. Although it has some scratches and does not look new, it is fairly clean and is in good operating condition."
Twisted Electrons uAcid8 Chiptune Bessline Synth/sequencer
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MATRIXSYNTH - EVERYTHING SYNTH
© Matrixsynth - All posts are presented here for informative, historical and educative purposes as applicable within fair use.
MATRIXSYNTH is supported by affiliate links that use cookies to track clickthroughs and sales. See the privacy policy for details.
MATRIXSYNTH - EVERYTHING SYNTH
