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Moog MG-1

“Moog Realistic MG-1 Synthesizer Excellent Serviced. Condition is Used.

I inherited this synth and spent over $300 having IC’s replaced and the overall unit serviced recapped and bright back to original glory .

Sounds awesome .

I’ve been running it with no issues over 6 months however recently the lowest F has started periodically not responding. I spoke with the repair shop and they believe this is be a minor issue with the contacts .

Otherwise excellent and holds great tuning .”
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Moog MG-1

“Powers on, and does have output, but the notes are barely audible. You can hear the oscillator churning but the notes don’t come through. Don’t know if it’s a fuse problem or what.”
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Moog MG-1

“Moog Concertmate MG-1 Realistic Vintage Analogue Synthesizer

Great sounding and rare synth from the 1980’s. Bought about 10 years ago and shipped over from the US (US/UK Power Adapter not included), and has been kept in the same condition ever since and to be honest has hardly been used in my ownership.

RCA Outputs haven’t worked since I got it but the headphone out at the front works absolutely fine.

Sold as seen and no returns or refunds”
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Moog MG-1

“No reserve auction for a Realistic MG-1 synthesizer made by Moog. This synthesizer is not in working condition. When turned on, the power light will blink on for just a moment, and then turn off again. Fixing it is beyond my capabilities, and I’m moving my studio. Selling for parts/repair only. Again, this synth DOES NOT WORK, and will need to be repaired or used for parts.

This keyboard looks really nice, and all pieces are intact. Please inspect the photos thoroughly. A few notes: 2 of the slider knobs are missing their silver endcaps, and there is a little rust to the washers around the 1/8″ outputs, which did work just fine until the power issues. I purchased this keyboard in 2010, and the previous owner cleaned the foam off the circuit boards.”
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Moog MG-1

“Moog Realistic Concertmate MG-1 analog Korg Roland . Condition is Used.”

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Moog MG-1

“Good condition . Modded with aftertouch . Controls pitch . Separate aftertouch on /off for lead and poly section . Also sensitivity and bend range adjustable inside keyboard with trims , for each section which makes for very creative bending techniques. Sliders , switches all work , and have been cleaned . Sounds great . Sold as is . ”

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Moog MG-1

“Excellent working condition Realistic Synthesizer by Moog Music.

The Realistic MG-1 is an analog synthesizer manufactured by Moog Music in 1981 and sold by Radio Shack from 1982-1983 under their “Realistic” brand name.

Sliders, switches all work. Sounds great.

Original owner. Still have intact owners manual (included and in photos)

Condition is Used.

From a nonsmoking and pet free home.”
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Moog MG-1

“UP FOR AUCTION IS AN MOOG Realistic Concertmate MG-1 Radio Shack Analog Synthesizer

Included is all that is pictured above only.”
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Moog MG-1

“This is a modified piece. View photos for more detail. I’ve attached labels to describe the mods as best as I know. They are a huge improvement for this synth. Overall condition is good. A couple keys have small chips. The foam that goes around the knobs and switches circuit board has been removed. The mixer section sliders sound a little dirty. It tends to pick up noise in the added knobs if the volume knob is set too low, but the sound is clean if the knob is set higher.”
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Moog MG-1

“MOOG Concertmate MG-1 Realistic Synthesizer 42-4000.

This unit turns on and everything seems to work, I am not a musician so this is my lay opinion only.

There is a knob top missing, it is labeled tone sources, the switch still slides and functions just the knob top is missing. See last pic for close up.”
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Moog MG-1

“MOOG Concertmate MG-1 Realistic Synthesizer 42-4000. Condition is Used. Connected RCA outs to a receiver and it definitely works but not sure it works as it should. Don’t know how to work it so not sure what it should sound like. It did not sound like a keyboard and had lots of other noise. Please be aware it may have issues. ”
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Moog MG-1

“Moog Music Model 42-4000 Concertmate MG-1 Realistic Synthesizer Condition is Used. “Sold As Is””
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Moog MG-1

“MOOG Concertmate MG-1 Realistic Synthesizer 42-4000 in very good condition. All functions seemed to be working but I’m not a keyboard / synthesizer player. Two slider knobs missing and one silver cap on slider.”
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Moog MG-1

“Moog Realistic Concertmate MG-1 synth – vintage analog synthesizer in very good condition, see pics. All keys work, all sliders and knobs work. I used it to trigger it from a Eurorack modular, so CV/Gate input works great as well, stays in tune nicely. Big, fat, warm old Moog sound I can’t seem to replicate exactly with my Sub Phatty, but I don’t need 2 bass synths now. I recently opened it up to clean the grimy foam off, and upon putting it back together the far right key went askew; not sure what happened there, but the key plays fine. There is a missing silver decal off of one of the slider caps”
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Moog MG-1 Project Machine

“I had this tested & the salesman said it’s not quite right.

Shout out to Kevin at C. A. House Music St Clairsville OH.

It powered up & played but I recall him saying something about a crossover slide.

I don’t remember all the tech lingo he mentioned but all the keys worked anyway.

The case is near perfect, no damage, missing parts or yellowing to the knobs.

Heck! I didn’t even see a scratch.

It may be something simple cause it’s in such fine shape?

Comes with the inst manual printed in 4/82.

Sold as-is with no returns.”
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Moog MG-1

“Moog Music Model 42-4000 Concertmate MG-1 Realistic Synthesizer. Condition is Used. There is one small knob missing for the poly phony slider control (see pictures). Other than that this is on very good condition.”
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Moog MG-1

“VINTAGE 1983 REALISTIC CONCERTMATE MG1 MADE BY MOOG

BOUGHT FROM A TANDY SHOP IN FRANCE

HARDLY USED DURING THE 2 FIRST YEAR, THEN IN A DRY STORAGE FOR MORE THAN 30 YEARS.

FULLY WORKING” Click here to search for synths on eBay

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Moog MG-1

“Moog Music Realistic Concertmate MG-1 vintage analog synthesizer. Condition is Used.

I plugged it in and used headphones and it works. Missing some knobs. Has some specks of paint.” Click here to search for synths on eBay

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Moog MG-1

“Foam is removed and overall good condition. There are very small chips in the front of 2 keys. See photos.

This MG-1 has a lot of mods. I can only guess what some of them are because they are not labeled, however, I’ve included photos of the wiring to help you figure it out.

Here’s what I can tell you about the mods:

Rear RCA jacks were changed to 1/4″ and it’s now V-trig for easier sequencing.
The output volume seems louder than stock.
I think the detune slider has been changed to go down a full octave.
The switch on the left drops the keyboard down one octave.
One of the knobs on the left changes the 2nd oscillator’s pitch. I think it detunes.
I think the knobs on the right are FM for Oscillator 2 and PW/PWM for Oscillator 2 square wave.
The lower switches on the left and right route what’s happening on the knobs to the LFO. ” Click here to search for synths on eBay

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Moog MG-1 Project Machine

“WELCOME TO THE SALVATION ARMY AUCTION LISTINGS TODAY WE ARE LISTING A REALISTIC SYNTHESIZER BY MOOG MUSIC/ CONCERTMATE MG-1. THIS ITEM POWERS ON- DON’T KNOW IF THIS PRODUCT WORKS -HAS NOT BEEN TESTED- THAT IS WHY WE ARE SELLING IT FOR PARTS. PLEASE SEE ALL PHOTOS FOR SPECIFICS. ALL OF OUR ITEMS ARE DONATED BY VERY SPECIAL PEOPLE WHO WANT TO MAKE A CHANGE IN SOMEONES LIFE. THANK YOU FOR YOUR CONTINUING SUPPORT AND YOUR INTEREST IN THIS ITEM.” Click here to search for synths on eBay

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Moog MG-1

“REALISTIC Concertmate MG-1 Analog Synthesizer moog with original manual. Condition is Used. Plays as it should.” Click here to search for synths on eBay

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Moog MG-1

“Moog Music Model 42-4000 Concertmate MG-1 Realistic Synthesizer with mods. Condition is Used. Working perfectly.

Has 2 mods done on it that are both filter octaves. This thing sounds rad. There’s a learning curve with these but once you figure them out they are super fun. Very warm bass synth sounds with polyphonic organ sound you can mix in. Sold as-is due to its age. Normal wear and tear.”
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Moog MG-1

“Vintage 1983 Realistic Concermate MG1 made by Moog.

Original buyer bought it from a Tandy shop in France. I bought it secondhand but in pristine condition from my friend in 1985, hardly used it during a couple of years then stayed in my parents house for the last 31 years. Fully working, I knob cover missing, and 3 of them got tape.”
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Moog MG-1

“This synth has had a full service – every slider has been cleaned or replaced if needed, one of the MM5823N divider chips was replaced, a 2n3906 transistor was replaced in the first oscillator. Also, the synth received a full recap using high quality Nichicon electrolytic capacitors. I performed a couple standard mods and changed the RCA out to a normal 1/4” jack along with increasing the overall output volume. The nasty ass foam protecting the sliders has been cleaned off and replaced, along with new knobs and slider caps. All keys were removed and polished. This synth looks lovely and will sound beautiful for years to come. Cosmetically speaking, it looks pretty good overall and has a few cracks in the overlay, also a few flecks of what seems to be white paint. Other than that, it’s quite pretty for a synth this age.”
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Moog MG-1

” only one key shows wear…works fine and the area is small…about the size of a dime, its fine but just sayin. Selling it for the going rate…and assuming it will go to Cali. we will rebate within 10 dollars of our cost..it will be packed well as we have done 30,000 listings. It has the manual. 4 switch/slide covers have been replaced, with no visual impact. A great new years present to yourself. Bah Humbug. lol Look what you do for others, dont forget yourself in this holiday season.”
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Moog MG-1

“only one key shows wear…works fine and the area is small…about the size of a dime, its fine but just sayin. Selling it for the going rate…and assuming it will go to Cali. we will rebate within 10 dollars of our cost..it will be packed well as we have done 30,000 listings. It has the manual. 4 switch/slide covers have been replaced, with no visual impact. A great new years present to yourself. Bah Humbug. lol Look what you do for others, dont forget yourself in this holiday season.”
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Moog MG-1

“You are bidding on a vintage REALISTIC RADIO SHACK TANDY MOOG SYNTHESIZER MODEL NO. 42-4000 CONCERTMATE (CONCERT MATE) MG-1 in very clean condition. The only damage I see is a repaired key which works fine and is shown in pics. Comes with a downloaded manual. There is no reserve. Payment is via Paypal. Buyer pays all shipping costs. Feel free to ask all the questions you want, but please ask them before you bid. Item is being sold “as is” with no returns. ”
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Moog MG-1

“90% – Very Good Condition : Basically Clean, might have some deeper scratches, pick wear or missing finish. Nothing real serious, no cracks, or other flaws.” Click here to search for synths on eBay

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Moog MG-1

” Vintage Realistic Concertmate MG-1 Synthesizer by Moog. Licensed to Realistic by Moog Synthesizers, this is an incredible sounding vintage analog monophonic synth. In great condition and works great. Features two oscillators, noise and bell (ring modulator), a great modulation section and the legendary Moog filter. ”
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Moog MG-1

“Everything has been tested and is 100% working. SOUNDS GREAT!!! Great piece of history for Radioshack, Realistic and Moog. Highly collectable.”
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Moog MG-1

” My father brought this home new from Radio Shack as a gift for me in 1982.

Model number 42-4000, serial number 6761.

It was working reasonably well until I decided to degunk the inside and replace the faders, as one of the tone generator faders was noisy. I bought replacement parts on eBay long ago (i.e. chipforbrains’ 43 piece reproduction slider and caps set, in 2011), then the project was shelved. I would love to get it reassembled and working again, but I’m downsizing and just do not have room for it. The original box and documentation is gone. I made no modifications (i.e. did not try to install MIDI or other changes).”
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Moog MG-1

” Vintage Realistic Concertmate MG-1 Synthesizer by Moog. Licensed to Realistic by Moog Synthesizers, this is an incredible sounding vintage analog monophonic synth. In great condition and works great. Features two oscillators, noise and bell (ring modulator), a great modulation section and the legendary Moog filter.” Click here to search for synths on eBay

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Moog MG-1

” Was told by original owner that it works, but he knows there are 2 dead keys. he attached the output cord on bottom. Selling as is – I do not have equipment to test.”
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