Oberheim Xpander w/ Japanese Owner's Manual w/ Front Panel Fold-Out

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via this auction

"Bought in 2020 from a vintage synth store in Japan. The power supply has been stabilized modded and maintained. The plus on the numeric keypad is a little hard to press but not too much of a problem. There are two small scuffs on the top, but overall very clean."

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Roland Jupiter 4 Vintage Analog Synthesizer

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via this auction

Interesting pic of the voice boards inside, further below.

"This Roland JP-4 has just been serviced to ensure another lifetime of reliability.

Service notes include (12/01/22):
- Installing CHD Midi 2.0
- Recapping and rebuilding PSU ✅
- Converting PSU to US Voltage ✅
- Recapping all electrolytic capacitors on all boards ✅
- Cleaning and lubricating all pots and sliders ✅
- Cleaning all I/O jacks ✅
- Cleaning all switches and contacts ✅
- Replacing old Nicd battery and with new modern user-replaceable coin cell cr2032 battery
- Revising battery charging circuitry in JP4 for lithium battery.
- Calibrating all 4 voices ✅
- Calibrating synth to factory specifications ✅
- Testing for a burn-in period of several hours to ensure best possible functionality ✅"

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Korg Sigma KP-30 SN 240778

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Note the seller has a ton of other vintage synths listed.

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ARP Axxe SN 0515 w/ PPC - Proportional Pitch Controller

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Note the Proportional Pitch Controller in lieu of the standard pitch knob.

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ARP Odyssey MK-I /2800 Patch Charts

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"Instant Odyssey Patch Charts from ARP for the original ARP Odyssey 2800 Synthesizer.

This is a must-have for any vintage synthesizer/ARP collector as these are getting very hard/impossible to find these days.

These ARP Odyssey patch Charts have no highlighting, underlining or any stamps on it. These Patch Charts are in very good condition, see the picture's for more detail."

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Vintage Dubreq Stylophone 350s w/ Extras

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via this auction

"Mint/brand new, very very rare Stylophone from the 70s, made in England.

Never used, spotless! Very rare to come across an unit in this shape.

All instruction 7’ and 12’ vinyls and booklets included, there s also an original audio cable included, that s not in the photo, I packed separately, everything packed in the slick original leather case.

Clearly a collector s standard item."

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Roland JD-990 Super JD Digital Synthesizer Module SN ZF03068

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Roland Boutique TR-08 & JP-08 w/ K25m & Original Boxes

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Spring Verb Minimalist Groove ft. Vermona Retroverb + El Capistan

video upload by alternatingbitmusic

"Droning oscillators of the MFOS WSG/01 fed through the Vermona Retroverb gated by Doepfer's Dark Time with percussion supplied by the classic Korg Electribe ER-1 fed through Strymon El Capitsan's Spring Reverb mode."

RANDOM VOLTAGE SOURCE | Mosaic Random 1U

video upload by DANIELE

"Providing gate, smooth and stepped signals, Mosaic Random is a random voltage source and clock generator in just 1U!

0:00 Intro
0:10 Rate knob, clock and gate output
0:23 Smooth voltage output
0:45 Stepped voltage output"

Additional Mosaic 1U posts