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Korg Delta

“Here’s an amazing string synth I picked up I think in 2009. It’s an amazing synth, and I’m reluctant to let it go nut I need to clear out a lot of my equipment in preparation for a change of use for my studio.

It could definitely do with a bit thorough service to fix a few minor and a couple of major issues.

Cosmetically it’s surprisingly good, see photos.

Main issues.

Intermittent problem with what seems like the synth section Low Pass Filter. It often seems completely fine, but occaisionally will start to distort and fluctuate in amplitude resulting in a very unpleasant crackle and then starts to lose function, the resonance stops working and only the top range of the filter cutoff seems to work. I think it may be linked to heat as it seems to happen more often when it has been left on for a while.
The synth section works seemingly much better when set to Band pass mode, though which Is how Ive been using it for years without any issue.
The noise generator in the synth section seems completely none functional, both as a tone and modulation source.

There are some issues with some of the faders/pots, as follows. .

The vibrato depth pot is missing its cap but functions fine.
Seems like the sustain parameter on the synth section is locked at maximum, so there’s no way to know if the decay functions correctly, but I’ve always managed to make do with it by using the release to create any pluck sounds I required, though maybe lacking slightly in precision compared to using the decay.
The two pots that control the amount of modulation assigned to the joystick are a bit temperamental and inconsistent while making adjustments but seem fine once in place and the joystick itself works great.
The octave blender in the string section seems very slightly off in the lower ranges when blending towards the lower octave.

The last photo shows the pots that have issues.
Note: The far right pot (Main Volume) is actually fine despite being labeled in the image.” Click here to visit listing on eBay

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Korg Delta

“Lovely sounding and beautiful condition Korg Delta DL-50 analogue polysynth.

Two section , synth and organ, which can be mixed together or played solo ( outputs for mixed and each separate channel).

Really exceptional condition with barely any marks. Only mark worthy of mention is crack in rear right end check which has been plastic welded back together so is solid, but witness marks remain. Very clean indeed. Has been stripped cleaned and reassembled recently.

Sounds amazing, just read the reviews. All pots are clean and lubricated and have no excessive noise. It’s had the filter components changed for new since these always pack up sooner or later on Deltas. It’s also set for 230v with the internal power supply.

Doubt you could find a better Delta !” Click here to visit listing on eBay

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Korg Delta Project Machine

“korg delta synth.

No longer has side cheeks a section of the voices A/E if I recall don’t work

Ideal donor for another Delta” Click here to visit listing on eBay

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Korg Delta

“SELLING FOR PARTS OR REPAIR ONLY. THE TOGGLE SWITCH ON THE ONE SIDE IS BROKEN OFF AS SHOWN. UNSURE WHAT IS WRONG BUT DOESN’T SEEM TO BE WORKING. MEASURES APPROX: 33″ LONG X 15″ WIDE X 6″ TALL. SHOWS LOTS OF SCRATCHES, SCUFFS, MARKS, STAINS, SPOTS, DUSTY/DIRTY FROM USE AND STORAGE. SELLING AS IS FOR PARTS OR REPAIR ONLY.” Click here to visit listing on eBay

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Korg Delta

“Korg Delta Paraphonic Analogue Synthesiser. Beautiful condition just serviced.

Lovely Korg Delta in great condition. Fully working. Just had major service including extensive re-cap and filter chip replacement. All potentiometers cleaned and lubricated.

Cosmetically great as well with very few marks and exceedingly clean. Only real signs of wear are the numbers around one of the knobs and the few scratches on the back.

Comes with original genuine Korg Delta case and even the card overlay that came with it when new to show what controls do what.”
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Korg Delta

” Korg Delta Analog Synthesiser with flight case. 100% working condition. Built in UK mains power lead. The Delta is Korg’s 1980’s legendary string synthesizer. Damaged corner (see last photo), needs either taping or end caps replaced.”
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Korg Delta

“Korg Delta DL50 Synthesiser. Working although not on the best cosmetic condition. Would benefit from a service and tidy up. Collection only.” Click here to visit listing on eBay

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Korg Delta

” Everything on this Synthesizer functions perfectly. Synth, check. Strings, check. Signal generators, check. Cutoff frequency, check. All knobs and sliders are intact and functional, even the bender joystick. The only actual issue is the G key that is physically damaged (the key still works though). I have tested this unit thoroughly and found it to be in excellent condition however, if you are interested in purchasing this, I would encourage you to have a live video meeting with me so that I can give you a demonstration and you can ask questions. ” Click here to visit listing on eBay

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Korg Delta

“This was owned by a relative who recently passed away so detailed history and information is limited for this item. It was stored in the flight case and doesn’t appear to have been used in a while. I do know he had owned it for many, many years but can’t confirm this was purchased new or second hand. I would guess second hand based on his age and the sticker attached which suggests it was purchase from a shop in Nottingham.”
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Korg Delta

“KORG Delta

Amazing sounding vintage synth in good vintage condition.

It’s In perfect working order.

There is some pitting to the case.

UK plug fitted and 240v” Click here to visit listing on eBay

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Korg Delta

“KORG Delta

Amazing sounding vintage synth in good vintage condition.

It’s In perfect working order.

There is some pitting to the case.” Click here to visit listing on eBay

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Korg Delta

“PHYSICAL CONDITION: Excellent – In great condition. There a few very minor scuffs on the device but no signs of serious damage. Otherwise, everything is intact, looking nice, and ready for more use. The overall condition is excellent. WORKING CONDITION : Excellent – All keys and all controls are in perfect working order. Overall working condition is excellent. Please click on “Item Description” for more details and photos.” Click here to visit listing on eBay

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Korg Delta

“KORG Delta Analogue Synth/String Machine
. Condition is “Used”. Postage is courier 48hour delivery service.
Joystick is missing but doesn’t affect operation.
In good condition for a 40 year old synth, recently serviced by Anderson Electronics.
Taking up space i havent got so sadly sayimg farewell to it ” Click here to search for synths on eBay

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Korg Delta

“KORG DELTA ANALOG STRING SYNTHESIZER

Condition is “For parts or not working”.

Good cosmetic shape. Includes original dust cover.

Powers on, makes sound on a few keys. All knobs and switches appear to be functional.

No further testing was done.

Will require professional service to be fully operational.”
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Korg Delta Project Machine

“Up for sale is my Korg Delta analog string synthesizer. It is in need of repair but does power on. The divide down circuitry will need to be rebuilt to be fully functional. Currently only E through B keys are functional on all octaves and C through D# are non-functional on all octaves. All of the functions work on those keys but the pots are pretty scratchy and will need to be fixed. Physically, there are dings and dents across the synthesizer that can be seen in the pictures. This synth is not in great shape – but can be a great opportunity to repair and have a fun little analog synth at an approachable price point. ” Click here to search for synths on eBay

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Korg Delta

“KORG DELTA – DL-50 VINTAGE ANALOGUE SYNTHESIZER/STRING MACHINE WITH ORIGINAL BOX AND SETTING CHART.

Condition is good “Used”

In good working order, slight rusting on surface ( see photos)

Joy stick still present works perfectly ”
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Korg Delta

“KORG DELTA DL-50 SYNTHESIZER

Tested works perfectly

With soft carrying case

Missing nob ” Click here to search for synths on eBay

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Korg Delta

“Working product.
The fader in the Strings section is broken.
However, the fader itself can be slid.
No problem with the operation.
There is some distortion in the power plug, but it works fine.” Click here to search for synths on eBay

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Korg Delta

“Vintage Korg Delta Vintage Analogue Synthesizer. Condition is Used. Non functioning. Powers up but no sound from the synth or strings section. White noise still works and is still affected by the filter and ADSR.” Click here to search for synths on eBay

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Korg Delta

“For sale is my Korg Delta synth /string machine . The unit is 35 years old and is in fantastic condition for its age .. there are a few small marks here and there which is to be expected for equipment of this age.

The joystick is fully operational and all mod sources are working. The unit is a combination of a synth and a string machine and the two can be used independently or mixed together. Sounds incredible through a good quality chorus. ” Click here to search for synths on eBay

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Korg Delta

“This Korg Delta DL-50 Analog semi-poly synth/string keyboard is being sold for parts/repair and has not been fully tested, it has only been briefly powered on. There are many random scratches and scuffs on just about all the surfaces of this vintage keyboard. Some of the slider switches are broken off or bent.”
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Korg Delta

“Condition: This Korg Delta DL-50 Analog semi-poly synth/string keyboard is being sold for parts/repair and has not been fully tested, it has only been briefly powered on. There are many random scratches and scuffs on just about all the surfaces of this vintage keyboard. Some of the slider switches are broken off or bent. Please refer to the images provided for more details.”
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Korg Delta

” Fair cosmetic condition with signs of normal use for a vintage synthesizer. Great working condition. Recent service including cleaning, calibration, general maintenance, and minor repairs. Great running and playing vintage string synth. ”
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Korg Delta

“Korg Delta Synthesizer. Condition is Used.
Been in storage over last few decades, Works but has some issues.
String section sounds great, quite unique sound
Synth section works but occasionally sounds like a dirty potentiometer somewhere?
Synths old so may need service to bring synth section up to date.
Also few missing covers for sliders but still perfectly usable. ie joystick, cut off and white noise.”
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Korg Delta

“Korg Delta DL50 String Synthesizer analog synth DL-50 ORGAN STRINGS Black USED in very good condition working perfectly no cracks in the case all ink on face is very good I wish I knew how to plays keys this thing is very cool I cant stop messing around with it ” Click here to search for synths on eBay

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Korg Delta

“The synth part can create some nice bleeps and bouncy basses while the strings section is perfect for recreating THAT classic 80s string sound.

The synth section can be fairly quiet and tends to create static when pushed over a certain volume but the strings work fine and have been used for home recording projects.

Bought in a music store in New York, the machine uses US voltage, but this comes with a transformer as well as a nice soft flight bag. ”
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Korg Delta Project Machine

“KORG DELTA VIMTAGE SYNTH

Rare synth looking for a new home and some TLC.

Faults

Two broken keys

One unseated key

Two faders need replacement

But functioning

Toggle snapped off but functioning correctly

Middle c not working ” Click here to search for synths on eBay

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Korg Delta

“This is the classic analog polyphonic Korg Delta synth and string machine. This is a very unique 1977 instrument featuring a separate polyphonic string and synth section.

It is in very used vintage condition. See photos. One or two keys may not play and knobs and sliders need cleaning. A few slider caps are missing and joystick cap works but is broken off. Because of its vintage nature it is sold as-is.” Click here to search for synths on eBay

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Korg Delta

“Condition: B +: no problems in applications that normally use
Year of Manufacture: Unknown
Accessories: a general-purpose hard case

There is a year corresponding color glow and dull, there is also contamination of fine dust.”
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Korg Delta

“Another hidden treasure from uncle Freddie’s stash… It powers up and plays, not sure if all controls work- I’m not into synths/keyboards, but I did get some fun sounds through the headphone output! It needs a thorough cleaning and restoration/repair or is perfect for spare parts for your Delta. The joystick is broken off but is still functional, three slider knobs are missing, and the sliders and pots and could stand to be lubricated, tightened and/or replaced” Click here to search for synths on eBay

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Korg Delta

“Another hidden treasure from uncle Freddie’s stash… It powers up and plays, not sure if all controls work- I’m not into synths/keyboards, but I did get some fun sounds through the headphone output! It needs a thorough cleaning and restoration/repair or is perfect for spare parts for your Delta. The joystick is broken off but is still functional, three slider knobs are missing, and the sliders and pots and could stand to be lubricated, tightened and/or replaced… Please note how some of the ink has been scratched off. This is being sold as-is. Shipping is being estimated at $125 due to final packaged size and weight, but I’ll happily refund the difference if the actual shipping charge is much less.”
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Korg Delta

“Korg delta.. Needs a service. Some love and a clean but Works fine.” Click here to search for synths on eBay