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Yamaha DX100

“Yamaha DX100 for sale in good condition for its age.Used only at home as a midi keyboard.” Click here to search for synths on eBay

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Yamaha FB-01

“used, works fine some scratches , loose paint some spot surface rust” Click here to search for synths on eBay

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Yamaha FB-01 Project Machine

“This is the issue as follows, sound comes out intermittently, & then dies out altogether, & then might come back after powering up the unit again. There is static and hiss.” Click here to search for synths on eBay

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Yamaha TX81Z

“Rack mounted MIDI sound module that I purchased new in the 80s. It was never used professionally, always in my home. Works perfectly and in excellent condition with only light scratches on the top surface as shown in the photos. Pull out card is also in perfect shape. ” Click here to search for synths on eBay

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Yamaha DX9

“Baby brother of the DX7. Now quite collectable. Works great. ” Click here to search for synths on eBay

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Yamaha TX7

“In very good used condition. Item #4990” Click here to search for synths on eBay

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Yamaha DX7 IID Project Machine

“2 columns on the left side of the display are out.

Prompts that it needs battery replaced.

Sometimes is displays gibberish characters on the right side of the screen.

Sometimes it continues to play after you release the keys, like it has a mind of it’s own.

Sometimes there is no output on single voice.

I could factory reset it, but I do not have the ROM to reload factory data.

I’ve included some samples of readouts.

No broken keys.

Missing 1 rubber foot.

Includes “sustain” cartridge.” Click here to search for synths on eBay

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Yamaha DX7

“Description: . comes as seen. Synthesizer. see pictures. Please see all pictures.

Condition: Physically in Decent shape. Needs some repair / service – Powers on as seen – I can get no sounds, like it has no voices

I am not sure the problem. the display has some bleeding but is readable.” Click here to search for synths on eBay

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Yamaha DX100

“Barely used Yamaha dx100. With 7 custom talkbox patches. Cosmetically and internally In great shape. All keys buttons and functions work as they should. Also included are the original manual and a soft gig-bag. No power supply (but power supply does work correctly). Works with c batteries.” Click here to search for synths on eBay

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Yamaha DX7

“Yamaha DX7
1980’s digital programme algorithm synthesizer.

For spares and repairs or to fix up.
Synth turns on, everything seems fine except the internal battery doesn’t seem to work.
I’m good cosmetic condition (see pictures). ” Click here to search for synths on eBay

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Sequential Circuits Prophet 5 Rev 3 with Remote Prophet

“Sequential Circuits Prophet­5 Rev. 3 (MIDI) 5 voice synthesizer AND Sequential Circuits Prophet Remote keyboard for sale. Includes interface cable and pedal, Interface cable needs to have a minor repair done (the 1/4″ control plug needs to be reattached.) Anvil hard case (for P­5) and generic hard case (for P­R). (Anvil case has 3 letter brand.) The P­5 is NOT fully functional. Suspect 1 or more faulty capacitors. This unit IS repairable. The Prophet Remote IS functional. These boards were meticulously cared for by one owner who, instead of keeping these two babies, has to sell them to pay for his divorce attorney. Will not split up. Local pickup (Union county, NJ) only.” Click here to search for synths on eBay

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Sequential Circuits Prophet 600 Project Machine

“THIS SALE IS FOR Vintage Sequential Circuits Prophet 600 Synthesizer PROJECT

INCLUDE: NO POWER CORD. UNTESTED

HISTORY: ITEM CAME FROM STATE SURPLUS AND IT IS “AS IS” NO RETURN “ Click here to search for synths on eBay

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Sequential Circuits Prophet 600

“Great sounding piece I’ve rarely used over the years. Needs a new home. I got it in the mid 90’s exactly as is shown. Signed.

Keyboard works fine bit has a cig burn and cracked key. The entire replacement of the keyboard is about 100$ but I never had a problem with it, I’m more concerned with how it sounds (awesome) then the cosmetic issues.” Click here to search for synths on eBay

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Sequential Circuits Six Trak

“Ive put in a good effort trying to get this thing fixed, but I think it’s time to pass it on. Essentially, the main issue is that the sixth channel is screwed up. This usually manifests by not producing any sound whenever you hit a note on the six channel, and unfortunately, it’s kind of unpredictable which you know will be on that sixth channel. You can partially correct the problem by setting the voices to monophonic, but that ruins a lot of the fun. Additionally, some of the numeric buttons aren’t working very well.

The last guy that took a look at it gave me a description of what’s going on. I’ve quoted him below.

“Its pretty beat – membrane switches are pretty shot, something is busted in channel 6 and the case is rough. (…) All 6 of your chips are good, it’s something else in channel 6 not the synth chip. The chips are CEM3394″

He’s encouraged me to sell it for parts since he believes a repair of this particular unit might be kind of difficult. Of course, that’s just one opinion.” Click here to search for synths on eBay

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ARP 2600 with ARP 3620 Keyboard

“Stunning original condition and superb working order. Complete professional service completed in February 2018 by US Arp specialist. Checked over by our resident synth expert – it is in superb working order. The front panel, controls and keyboard are all superb and undoubtedly in exceptional original condition for a 2600 of this age. The keys of the 3620 keyboard are showing some age in terms of fine scratches and scuffs but overall this is also is excellent condition. The tolex has some wear and scuffs – mostly on the edges – but nothing serious. Overall this is an outstanding example of an exceptional instrument – the best we’ve seen.” Click here to search for synths on eBay

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ARP 1501 ADSR Envelope Generator

” This very scarce Arp educational module was recently serviced at Switched On and is working perfectly. I used it with my Arp 2600, but it would work great as an auxiliary envelope for eurorack or a Moog Mother 32.
The module is in beautiful condition with no cracks to the Bakelite case. “ Click here to search for synths on eBay

Categories ARP

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ARP 1509 Voltage Controlled Amplifier

“This module part of the rare the educational series modular version of the arp 2600. It is a single vca but in the context of the 2600 it is a very powerful. The module runs using one 9vdc rectangular batteries.

The module uses the same mini jack system as the arp 2600. It is basically ready to work as an expander to the 2600 or in conjunction with other lab modules.

It’s hard to price such a rare item so I am open to offers.” Click here to search for synths on eBay

Categories ARP

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Emu SP12

“Mighty SP12 Turbo: everything works. All LEDs, sliders, knobs and buttons. The sliders are in very good shape. I bought it from the original owner. Serviced last week, new battery, NOS slider caps purchased to a reputed seller and will include 5 original slider caps as spares. I have owned and used dozens of drum machines (beggining with a Drumulator in 1985) and to me the SP12 has the best workflow of all.
The OS installed is 1.8 The usual yellowish build up of these machines is present. A custom made sturdy vinyl dust cover is included.” Click here to search for synths on eBay

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Casio CZ1000

“Casio CZ1000 Phase Distortion retro synthesiser from 1985.

Everything is in good working order and comes with original Casio PSU. The synth has been stored in a flight case for some years (not included) and all keys, buttons, pitch bend etc have been checked.

Also included is the CZ1000 midi implementation chart but no user manual. This can be found online from many sources.

Some minor marks on synth casing.” Click here to search for synths on eBay

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Monome 128

“MONOME 128 Aluminium (usb powered)
Perfect condition used five times at home.
If you know about Monome you’ll know what it is.” Click here to search for synths on eBay

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Ensoniq ESQ1

“This is a beautiful and unique-sounding analog/wavetable synth, capable of producing incredible sounds. The first Skinny Puppy albums owe so much to this synthesizer, which made it one of the most sought-after sounds in it’s era. Everything on this beautiful board is in perfect working order, and I also initialized it back to the original state, with the original presets. Although not pictured, power cord is included.” Click here to search for synths on eBay

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Octave CAT

“Great sounding antique board (pre-1980s) with a killer filter and some unusual gnarly effects via its flexible modulation capabilities. Oscillator sync, sample and hold, audio rate frequency modulation of both the filter and oscillators, duophonic mode and did I mention the filter? Yeah, it’s pretty sick. Screams like a banshee. In fact, I believe Arp sued them over cloning their design of the original Odyssey.

It’s been in dry storage for some time, but it still plays and sounds great. The original filter was replaced with a new old stock OEM chip that was tough to track down, and it had a thorough check up by a reputable vintage synth tech shortly before going into storage.

I have cleaned the j-wires and bus bars so the keys trigger great and all controls function smoothly and quietly. It looks great for its age with no serious physical defects and plays like new.” Click here to search for synths on eBay

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Kawai K5m

“Working kawai k5m rack mount synthesizer.only thing not working is back light for screen.screen does work.It also has scraches and scuffs.see pctures” Click here to search for synths on eBay

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Kawai R100

“I have not tested this item. Definitely worn but seems solid. On light and screen illuminate when switched on. All selection lights function as well. Rough, but seems to be working. The top cover is loose and not connected to the bottom. I do not guarantee this item. Could be used for parts or could be a great deal. ”
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PAiA Gnome

“Description- Paia gnome synthesizer 3740 with original box manuals assembly instructions. It was taken apart when found one battery wire is off and the one lead wire is disconnected also missing one rubber foot otherwise really good condition sold for repair comes with all manuals & original box. ” Click here to search for synths on eBay

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Kawai K5m

“In working condition, but only partially tested. I connected a midi pedal-board to this synthesizer and listened to the generated sounds through headphones. I tested the synthesizer to the best of my ability, but I am not familiar with its full functions. Being sold as is. 32K RAM Card included, but it does not seem to be working. Power cord included.” Click here to search for synths on eBay

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Alesis Andromeda A6

“It is with a heavy heart that i thin out my studio by starting with an Alesis Andromeda A6 polyphonic analogue synthesizer that is in excellent condition. This synth was purchased new in 2009 from Noisebug out of Pomona CA. I have been the only owner and it has spent all of it’s time in a studio in an upper rack where it was mostly played through a master keyboard. I never had any issues with this synthesizer. It has been my berlin school in a box.

The synth has suffered a few minor cosmetic blemishes over the years as is identified in the close up pictures provided. It is due for a new battery at the end of 2019. The pots were recently cleaned. I am a non smoker.

There is a steep learning curve with this synth to figure out it’s sweet spots so this synth would be best served with someone who has an excellent sense of programming. i admit, this synth humbled me at first. I deeply hope that this synthesizer finds a good home as it has served me extremely well.

Included are the A6 synthesizer, the power cable, a binder of tips and tricks from the internet to get you started and the original box.” Click here to search for synths on eBay

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Casio CZ-1000

“Casio cz-1000 digital synth from 1985. Awesome, gritty sounds with easy manipulation of wav form parameters. Always kept in a clean, smoke free, studio.Incudes ac power supply.All functions are working. Headphone out, line out, midi i/o all good.” Click here to search for synths on eBay

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Oberheim OB-Xa

“Sale is for a Oberheim OB-Xa Keyboard Synthesizer. Comes with Sessions hard case. Unit is tested and works fine. Excellent vintage condition as shown in the pictures. Comes with power cord. Owners manual not included. This is a rare find and hard to come by.” Click here to search for synths on eBay

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Kawai K1m

“Great Condition Kawai K1m desktop synth with super cool string and bell sounds. Additive synthesis, and the best feature, a joystick that allows you to mix between 4 parts (sounds) great way to achieve some very interesting sonic effects.

Comes with original power supply and a manual. I’ll throw in a MIDI cord as well.”
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Waldorf Microwave XT

“A little rough around the edges but sounds and works great. I replaced the knobs with newer ones. 10 voice board.” Click here to search for synths on eBay

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Cwejman S1 MK2

” The Legendary Cwejman s1 mk2 from the original run.
Fully functioning and calibrated.

Beautiful Beast. “ Click here to search for synths on eBay

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Simmons SDS8

“Simmons Sds 8, has some scratchy pots but is fully functioning and in over all good condition with some scratches and nicks”
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