Maestro USS-1 Universal Synthesizer System - 70s Multi-Effect Unit SN 1420

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Maestro USS-1 SN 1558

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"Super Rare, Tom Oberheim designed Maestro USS-1 Universal Synthesizer Unit. Bought this in 1992 and it all worked then, but its been in storage all these years. Powers on and Waveform, Filter, Sample/Hold and Phase working well. Envelope and Subharmonic hard to tell. A first envelope sliders looks unconnected but is there and Sensitivity slider too is missing. Has a bypass toggle switch added by previous owner. Working sliders are really tight but probably just need some WD-40 as they used to work."

Do not spray WD-40 into your synths.

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Maestro USS-1A Universal Synthesizer System for P&R SN 1169

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"Includes footswitch.

Item is in used condition.

Item is being listed for parts and repair.

PLEASE NOTE:
- The PHASE effect appears to be functional.
- The SUB HARMONIC effect work intermittently.
- The rest of the effects do NOT appear to function, and the volume drops out when they are engaged.
- The faders are difficult to move (they do NOT glide freely).
- The buttons on the footswitch do NOT always light up.
- The footswitch does NOT engage properly.

Item turns on while plugged in with the attached power cord.
No input or output jacks show any obvious signs of damage.
The power cord appears to be in good condition.

Cosmetic issues with the item include missing fader caps, scuffs, scrapes, dust/residue, light oxidation, and scratches and marks consistent with regular use (see pictures)."

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Vintage Maestro Universal Synthesizer System Unit Full USS1 Tom Oberheim Design SN 1426

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"Unbelievable original USS-1 complete with the original pedal and even paperwork. This is one of the nicest complete sets I've ever seen for sale, and has just been serviced by a local tech. In great cosmetic condition with only a few light marks throughout. Genuinely, you'll not find a better complete unit! You'll not be disappointed."

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V.A.I. 62 Welson Stereo Symphony / Maestro USS / Maestro Rhythmking 4 / Ekosynth

video upload by Vintage Audio Institute Italia

This appears to be the first post to feature the Meastro Rhythm King 4.

"The mighty Welson Stereo Symphony is a rare Italian string machine with modulation stereo capabilities that are quite unique.

The Maestro USS is the first multi- effect for guitars: phaser, envelope follower, octave follower, Sample and hold etc.

The Meastro Rhythm King 4 is a drum machine with a rhythmic, tremolo modulation - chopping up whatever sound source you give the input in the back."

VAI 4 : Maestro Rhythm King - Maestro USS - Crumar Multiman S/2 - Elka Solist

Vintage Audio Institute Italia

"Making good use of the Crumar Multiman S/2 string separate outputs: string section are going through the Mu-Tron phaser, brass and bass sections are going through the Maestro Rhythm Kings' modulation effect : an input in the back of the drum machine will chop up the input signal like a rhythmic tremolo.
From there is goes to the Maestro Universal Synthesizer (?) System, possibly the first multi-effect ever put on the market, triggering the envelope filter and adding some phaser there as well...
The Maestro Kings' drums are processed through the Roland RE-301 for crunch and echo.
The Elka Solist 505 monophonic synthesizer is playing the lead.


We make these videos as a showcase for our studio and for curious vintage heads - and for fun.
We don't dilly-dally too much with production and mixing but it can sound pretty good with headphones on."

Vintage Maestro USS-1A Universal Synthesizer System SN 1794

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Pick of the inside back below.

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Tom Oberheim Designed Maestro USS-1 Universal Synthesizer System SN 1873

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"Up for sale is a (1) very rare Maestro USS-1 Universal Synthesizer System, a big box full of Tom Oberheim effects. The boxed USP speed/freq. pedal is included as well as the owner's manual from 1974. The pedal can act as a wah-wah pedal or as a speed pedal for the sample&hold / phase shifter.

The main unit is been serviced. The service report is part of the sale. Cosmetically it's in near mint condition with only some very minor scratches and little wear and tear (see photos).

A beautiful vintage piece of history in amazing condition! It's a 117v version and the serial number is: 1873."

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Maestro USS-1A Oberheim Analog Phaser VCF S/H Envelope Filter Sub-Harmonic Wave

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"This used vintage Maestro USS-1A is in excellent playing and cosmetic condition. Six Tom Oberheim designed analog effects! Buttons and slider knobs are present and operate smoothly, the foot switch lights all work, original foam-lined hard case in good condition. A full (15) electrolytic capacitor replacement has been performed. Unit pictured is what you will receive.

This an analog multi-effects unit comprising fuzz (labeled waveform), filter with a sample and hold button, phaser, envelope shaping (compression), and a subharmonic generator."

Not sure if this is the one in the previous video here. There's no mention of the video in the listing but the lighting and units look the same and I couldn't find any others on eBay. Decided to post this separately.

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Maestro USS-1, Footswitch, and Case

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"Everything works on the unit and footswitch--the indicator light for the Wave Form switch on the pedal is dimmer than the others; all sliders operate smoothly.
It was gone thru by Lingenberg Sound near LA in March of 2016.
He tuned it up and replaced some of the electrolytic caps at that time."

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MAESTRO USS-1 Universal Synthesizer SN 1376 with Homer

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1960's MAESTRO USS-1 by Tom Oberheim SN 1539

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"A beautiful and absolute rare gem, the multi effects unit designed by Tom Oberheim for Maestro/Gibson from the 1960's.

There's very little information on these on the internet but what we do know is that these come up very rarely and particularly in this condition.

Recently professionally serviced and calibrated.
Process any sound source like your drum machines, synthesizers and guitars and just start experimenting!

The built in synth / effects are:
- Waveform
- Filter & Sample/Hold
- Phaser
- Envelope
- Sub-harmonic
- sensitivity control that affects the envelope and sub-harmonic."

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MAESTRO Universal Synthesizer System USS-1 SN 1539

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"Ultra rare MAESTRO USS-1 Universal Synthesizer (OBERHEIM) in very clean conditions PLUS its original travel / studio box.

Recently professionally serviced and calibrated.

It can be used as Synth processor for drum machines, synthesizers, guitars etc.. put any signal through it and then just start experimenting!

The built in synth / effects are:
- Waveform
- Filter & Sample/Hold
- Phaser
- Envelope
- Sub-harmonic
- sensitivity control that affects the envelope and sub-harmonic."

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MAESTRO (Oberheim) Universal Synthesizer System USS-1

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"Ultra rare MAESTRO USS-1 Universal Synthesizer (OBERHEIM) in very clean conditions PLUS its original travel / studio box.
Recently professionally serviced and calibrated.
It can be used as Synth processor for drum machines, synthesizers, guitars etc.. put any signal through it and then just start experimenting!

The built in synth / effects are:
- Waveform
- Filter & Sample/Hold
- Phaser
- Envelope
- Sub-harmonic
- sensitivity control that affects the envelope and sub-harmonic."

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Pristine MAESTRO USS-1

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"SUPER RARE SUPER CLEAN-COMPLETE WITH NO MISSING KNOBS. USED FOR GUITAR, KEYBOARDS, VOCAL MICROPHONES, VIRTUALLY ANY ELECTRIFIED INSTRUMENT INCLUDING BRASS or WOODWIND, SYMPHONIC INSTRUMENTS, THEREMIN etc..., Bob Moog had a hand in the design so we've been told. Serial number label (paper label) which nearly always is ruined or torn/lost, has been wisely preserved under a clear plastic shield and is completely in tack because of it. Very wise indeed.

Rare piece of guitar, synth and electronic music history indeed."

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Maestro USS-1a Universal Synthesizer System Effects SN 1799

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MAESTRO USS-1 UNIVERSAL SYNTHESIZER SYSTEM

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Maestro USS-1 vintage guitar synthesizer with Control Pedal

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"The pedal includes:
-Waveform. Similar to distortion.
-Filter with Frequency and Brilliance sliders.
-Sample/Hold effect. Similar to a small sequencer.
-Phase. A great sounding phase shifter.
-Envelope with separate attack and decay sliders
-Sub-Harmonic with sustain and percussion switch

-Sensitivity slider
The colored rocker switches turn the effects off and on. They can be used separately or in combo.
The foot control allows you to preset the effect on that you want then turn them off and on as needed."

Pic of the inside below.

SN 1797

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Original Vintage Maestro Universal Synthesizer System

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"No. 1840 - USS-1A -
manufactured by Maestro Division of Chicago Musical Instrument Company... Oberheim Electronics, Santa Monica, CA 90401.....
117 VAC - 50-60 Hz - 5 Watts..... O 3ag............ and with its original case intact! Designed by one of the masters, Tom Oberheim himself!! ********************************
Wave form - 2 filter / sample hold - Speed - Phase - 2 Envelope - 2 Subharmonic - Sensitivity - includes original RARE CASE *************"

Great shots of the case.

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Maestro USS-1 guitar synthesizer system

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