Replacement Synthesizer Key Guide and List of My Stock


      Here is a guide that will assist in figuring out if your keys are compatable with other types, with photo links for various ones I've been able to get so far. NOTE they are named after the key I happen to have often. Use the edit pull down menu in your browser and search for the key type you are looking for if you don't see it right away.
      If you have types I don't have Email the smallest jpg of similar view that you can. NO pics of keys still on the keyboard, etc. Thanks.
      See Keys for Sale and additional notes about hammer actions etc.

Pratt-Read keyboard assemblies found their way into a lot of early units. At least the ppg 2.2,2.3, Minimoog, Sonic Six, Satellite, Micromoog, Polymoog, Minitmoog and Multimoog, Sequential Circuits Prophet 5, Prophet 10 and Pro One, ARP Odyssey, Axxe, Quadra, Omni, Pro-Soloist 2500 and 2600, Oberheim 4 voice, OB-X(a), OB-1 and OB-SX, and a few OB-8, EML 100/101, Octave Cat/Kitten, and I'm sure probably others. If anyone knows ones that are missing let me know. (I stock fresh Key Bushings!) Check stock below! (NOTE: I see I have two styles of this in stock. One is as pictured, the other the part that drops down in front is flat instead of having sides on that part. Make sure to order the right one)

Akai AX80 keys are exactly like Korg Lambda except they have the piece in the middle to strike the rubber switch housing. In a pinch a Lambda type key could be adapted to suit the purpose. Check stock below!

Akai VX600 Identical to E-mu Emulator II and very close key to Korg Poly61 but some modifications required on the hook on the black key which projects sideways too much on poly. Usually old one can be cut/retro'd from old key I'm told. Photo courtesy of Thomas Rogers

Late Odyssey MkIII. Also fits Octave Kitten, later Axxe and SCI Pro-One. synthparts.com appears to have them in stock.

Casio CZ1000 appears to be same as ALL CZ full size including CZ-1000, CZ-3000, CZ-5000. SAVE a perhaps rare exception. SOmeone bought a CZ1000 thinking they would get keys off it. THe keys were totally different with Roland style springs! So BE SURE TO CHECK before ordering FZ keys...which appear to be modifiable to work. I had 2/2 success pulling weights out so far :-). Check stock below!

Casio FZ-1 Probably fits CZ-1 also as they are velocity sensitive. Possibly can be modified it appears to use this key for other CZ full size units by shaving the contact 'bumpers' off and replacing them with a rubber foot or something of the same thickness at the right spot to push down the contact on these non-velocity sensetive models. Check stock below!

Crumar DS-1 See service pic in DS-1/2 page for metal part of keys. These are also used I see in the Crumar Multiman, so possibly others of that series as well. These are kind of similar to Pratt-Read but they use glue instead of a screw to hold this top on the metal.

Mirage1 These are in the Ensoniq Mirage DSK-8 (metal case) (Link to Syntaur; thanks guys for making these available!)

Early Ensoniq These are in the Ensoniq Mirage DSK-1 (plastic case), ESQ-1, and Crumar Bit-One I hear. Others? (Link to Syntaur)

Later Ensoniq are in the ASR-10, EPS, EPS-16 Plus, SD-1, SQ-80, TS-10, VFX, VFX-sd. These appear to be yet another rendition of the keys used in Korg CX3's and Kawai K5000. Did Fatar make 'em? (Link to Syntaur)

Early Fatar These are in the Crumar Performer to at least the Trilogy and also some Siel like the SCI Prelude. Note metal clip that spring hangs from that slides in from top of that back piece. Not sure what else now.

Early 80's Mini Fatar These are in the Siel DK-70. Not sure what else now. Check stock below!

Early 80's Fatar Near same as Siel DK600, DK700, DK80, Crumar Bit99 (save old keyweight and a slight plastic cut required if you adapt one of these keys), E-Mu EMAX II. Ensoniq SQ1(+)and SQ2 adaptable also. NOTE: Noticeably browner 'black' keys on DK80 than DK600. Check stock below!

Kawai K3 Similar to Korg DSS-1 and Lambda/Delta but I don't see an exact match. Photo courtesy Kawai.

Kawai K5 Similar to K3 but different. Photo courtesy Kawai. They have replacements.

Kawai K5000 keys are also used in Quasimidi Raven, and possibly Cyber6. I see that the Nord Electro also uses a very similar key. and again Korg CX3 key with a different key weight area cover. photo courtesy of Ivan Schwartz See Kawai for replacements.

Early Korg keys are used in 700S, PS series, MS series and Sigma. Also see later Moog synths above. Teisco SX-400? Others? Very likely all older Korg's but haven't gotten absolute confirmation yet. Kevin Lightener bought Fred McNiff's stock but also drumsrus@(take this out)sbcglobal.net has a few octaves of them. Photo courtesy of Mattias Moller.


Korg CX3- NEW VERSION. Not aware of anything else that it fits exactly. K5000, Quasimidi Raven/Cyber6, Nord Electro and some Ensoniq are same except weight part which can often be modified with dremel tool etc. See below for pricing. SEE BELOW for Lambda key for older CX3.

Late 70's Korg keys for Delta, Lambda and old CX3. Others? Check stock below!

Korg Poly keys fit MonoPoly, PolySix, Poly61, Poly800, Kawai SX-210/240, and MemoryMoog, and Oberheim OB-8 (OB8) after first few I hear which still used Pratt-Read. Also later SCI are nearly identical and can be substituted in a pinch. Akai AX60 is a slight modification again of the under bumpers but compatable it appears. The Weighted version below basically in DS-8.

Korg DS8 keys are used in Fender Chroma Polaris, Kawai K1, K1 II, K4 and K11. Also E-mu Emulator II I'm told. Check stock below!

Korg DSS-1 keys. Used also in DW8000. Check stock below!

Korg X3 keys. Appears identical to Yamaha Ridged keys below. When back end cracks I've gotten by super gluing the pieces back together and searing the edges of the crack with a hot soldering iron though. See below for Yamaha replacements new.

Triton LE- keys are also used in Karma, and adaptable to Ensoniq Fizmo and with addition of weight Waldorf MicroQ and Ensoniq SQ2 I'm told. See below for replacements.

Kurzweil K1000 keys have a similar design to the Crumar Performer in the metal clip used to hold the spring, but as you can see a weighted key of different design in other places. The K1200pro has the SAME KEY it appears...but uses a spring that hooks into the top hole instead of the spring/clip combination of the K1000 unit. It was sprung lighter which really annoyed me since double triggers would occur in my style of play, and I adjusted the springs...all 88..to my specs! It's been my main controller ever since.

Later Moog are used in Prodigy, Source, Rogue, Liberation, MG-1 and Opus-3. These are the same as the Korg PS, MS, and Sigma below in design. Kevin LIghtener bought Fred's stock. Also drumsrus@(take this out)sbcglobal.net has a few octaves of them.

Memorymoog keys are same in design as Korg Poly keys. Check stock below!

Oberheim Matrix 6 As you can see, this is totally identical to Kawai K3 without weighting. The weights can be removed usually from those keys with ease in a pinch. Or not someone said. Possibly Kawai upgraded the glue job. One can always use them in a less used place with a shortened spring I suppose w/out pulling the weight out. Pic courtesy of Martin Weetman

Early Roland SH-1000(2nd version**), SH-1, SH-3(a), SH-5, JP-4, and probably ProMars take these. F Key #106-015 to Black key #106-023. Many early manuals only give number for the entire keyboard's they used. From those numbers (which only have suffix differences) and the fact that it is unlikely Roland would have introduced a new key for such similar products, I'd guess all the early ones take the same keys**. However the 2000 had after touch so, who knows! (** The earliest SH-1000's had a slightly different key design but the white's are compatable it appears but the blacks are not! ALso there were different springs for the black keys and all springs are the same on the later SH-1000's. ) Check stock below!

Roland early 80's are in SH-101, Jupiter-8 JUNO-60 (and 6 most likely) and VP-330. These APPEAR from drawing in manual to be IDENTICAL to the keys for JX-10 below, which are weighted. (I've tried to remove weights on the S-10 keys. Impossible on whites without a slow milling process. On blacks you can drill the lead out until it's so weak that you can remove it if you are good with a drill. ) Part #'s sequential ending on black key 106H032 Check stock below!

Roland early-mid 80's I have confirmed that at least JUNO-106 and some JX-8P take these. (Some JX8P have keyweights. See below. ) Probably JX-3P is the same also. Part #22575140 for black key. Part #'s are always in a sequential order, like C/F key ends 136, according to service manual. Originally Juno keys it appears lack the understructure to support hitting of the second contact. So you can NOT take these keys and put them in a JX-8P without retroing them to create a flat surface extending further back underneath. At some point Roland likely began supplying only the JX-8P key for both synths. I've never tried them in the earlier yet units. But wait, it gets worse than that. A customer is requesting keys today who has a JX-8P with weighted keys! The type below should sub in fine for these though they have more understructure than needed. Check stock below!

Roland mid-late 80's are used in D-50, JX-10 and S-10 take these. Part #22575212 for black key. Totally identical to JX-8P keys except with weights on SOME units. It appears Roland began weighting these and most I've run across so far have the weights. One person said theirs did not have them. So check before ordering below.

Roland Later 80's/Weighted- The U-20, JD-800, D-70, Model 660, Model 760, KR-33, KR-55, KR-500 and SK-7(P). Part #22575261 on U20 for black key. I'm informed that these are very similar to others in design except they use some horrible epoxe that melted down in certain conditions often ruining things. Check for pink/red epoxe. I've never tried to fix..but it could be some adhesive that doesn't react could cover over the problem. These also had a guide bushing issue which Roland issued an extended one to fix. Check below for stock.

Roland Later 80's /unweighted- D-5, D-20, EP-3, EP-5 is same key as above w/out weight. Check below for stock.

Roland Later 80's/unweighted- Similar to S-10 without weight. The D-10 at least uses these. Possibly same as unweighted JX-8P I've heard rumors of. Anyone know of others that were unweighted that are compatable? Obviously backwards compatable to Junos and others sometimes with slight mods underneath probably. Check stock below.

Roland Early 90's- AT-50, AT-70, JV-80, JV-90, XP-80, EP-7, EP-9, KR-350, KR-650, PT-8, PT-1000, VK-1000, and SK8(P). These also suffered some of the bad epoxe episode. Check for the pink/red epoxe. Check stock below.

Roland Early 90's- AT-30, AT-80, AT-90, VK-7, and SK-9 also suffered from the red epoxe syndrome. Improved epoxe in AT's with "R" suffix and VK-77. Photo anyone? I may have a few of these.

Roland E35 These are smaller keys from fatar obviously. Nearly identical to Siel DK70 except without extension to hold spring actuator. Same save slight mold alteration of no consequence to Korg i3. Check stock below.

SCI MultiTrak- These are identical to Korg DW-6000 and are used inProphet 600 and newer Sequentials Circuits units it appears and also compatable with Korg Poly6/61. Note a slight but insignificant variation, at least when swapping keys into the Korg. I haven't tried it the other way but am sure it probably works fine. FIts all later SCI units P600 and on except T8 and VS probably. check stock below.

Early Yamaha synth keys are found in the SY-1 and 2, CS-10?, CS-30, CS-50, CS-60, and SS30. Check stock below!

Later Yamaha synth keys are found in the CS-5, CS-15, CS20M, CS-40M, and CS-70M. Also the SK series probably as the SK-20 has them. Check stock below!

Yamaha DX7 keys are also in SY series, EX5, PF10 and Motif7. Korg M1, WS, 01/W, Trinity, Prophecy, and Triton except for LE and 88key also use a key that can be interchanged. Probably other boards as well. Let me know if you use one that has these that isn't listed.(PS. Yamaha still has KX88 keys)Check stock below!

Yamaha Ridged keys have similarities to DX in spring. Used in the DS-55 synth which is a 4 operator rarity, and possibly one of the cheaper SY's (55?). Also some combo organs and consumer electric pianos from the late 80's to early 90's like ME-6, HE-8, ME-50, U-1000, EL-50 and spring said YPR9 so possibly it also. Also Korg X3 apparently. Thanks Joseph Rooney for the info/pic! Check stock below!


Keys I have for sale!
(ask for quantity discounts!)

Below are used but nice keys and some new I have in stock, and some notes. See price schedule below. Add $4.00 for up to 6 keys then write to get actual shipping on more. You may contact me by e-mail to set up an order. If you can use paypal send 'direct w/d from bank account' payments to sounddoctorin@imt.net and Credit Card# sourced payments to sounddoctorin@gmail.com )

Casio FZ-1- Probably fits CZ-1 also as they are velocity sensitive. ALL CZ full size including CZ-1000, CZ-3000, CZ-5000 can be modified it appears to use this key by shaving the contact 'bumpers' off and replacing them with a rubber foot or something of the same thickness at the right spot to push down the contact on these non-velocity sensetive models. PRICE: $8 each, $16 for end key
Korg CX3- New keys. Not aware of anything else that it fits exactly. K5000 close. PRICE: $4.00 each
Korg DSS-1- These also fit DW8000. PRICE: $8 each and end N/A
Korg DS8- Similar to many other units but it has keyweights and is thicker than the Poly61 for instance. These appear identical to Kawai K1, K1-II, K11 and K4 keys however. PRICE: $4 each and $8 for end ones.
Korg I3- Near identical to Roland E35. $4 ea
Korg Lambda- Fits Delta and also OLD CX-3. I'm out of "F". PRICE: $10 ea. and $18 for end ones if available.
Korg M1- Same as Yamaha DX7 below but also Korg Triton, 01/W, Wavestation, Prophecy, Trinity and maybe other Korg products. PRICE:$4 eac. and $8 for end ones
Korg PolySix/61/M- See SCI Multi-Trak also. PRICE: $4 ea. $8 end ones
Korg Triton LE- Look similar in design to some PSR keys. $4 ea.
Peavey DPM SI - $5 ea. $10 for end key.
Pratt-Reed keys - Fit most early american synths. CHeck list above. -$7 ea, $14 end when available and $6 for caps only when I have them for that key. Call or write.
Roland JP4- These apparently fit all Roland synths from '78 and eariler. PRICE: $12 ea. $22 end ones
Roland JUNO-106 - (see pic of S-10 w/out weight below). Fits SH-101, JUNO-6, JUNO-60, Jupiter-8, (Jupiter 6?), JX-3P with minor undercarriage modifications as I recall. Virtually impossible to find these anywhere since most units are high dollar to scrap. PRICE: $7 ea.
Roland D-10 - (see pic of S-10 w/out weight below). The undercarriage is of course set up for velocity on these so possibly a better fit for JX8P as well if unweighted version. PRICE: $6 ea.
Roland S-10- Fits most JX-8P (some I believe are unweighted so check!) Alpha Junos, D-50, D-20, D-70, JD-800 JX-10, KR-33, KR-55, KR-500, Model 660, Model 760 and SK-7(P). PRICE: $7 ea. $15 end ones if available.
Roland D-5- THese keys I had previously thought were the same as other D series. THey actually are the same as U-20 except that it is weighted. I now have both of these in limited stock brand new! $5 ea.
Roland E35- New white keys. $4 ea
Roland EP-7-See list above under early 90's. New white keys. $4 ea
Roland JV-30- Not sure what else they fit. Only black and E/B new in stock. $4 ea.
Roland JP8000- Not sure what else they fit. New white keys. $5 ea
SCI MultiTrak- Identical to Korg DW6000 and is for all purposes compatable with Korg Poly6/61. Note a slight but insignificant variation, at least when swapping keys into the Korg. I haven't tried it the other way but am sure it probably works fine. Anyway this fits ALL later SCI keyboards P600 on save T8 and VS it appears. PRICE: $5 ea.
Siel DK70- Similar to Roland E35 above but with extension for spring actuator under loop. Used but good keys. PRICE: $5 each.
Siel DK80 or DK600- Have all but high C only DK600. E-mu EMAX II appears same. Ensoniq SQ-1 also if modified underneath. (Melt piece that holds spring guide to a narrower width w/soldering iron tip holder etc. then grind/file to shape/length to allign holder. Not necessary to remove extra part on SQ1+ at least) NOTE:DK600 keys I also have and blacks are different. DK80's are a more brownish color and DK600 glossy black. Specify which you want! Bushings also available. PRICE: $6 ea. END/Prime key $15.00
Yamaha Old CS - Fits all older CS series except 80. (30, 50, 60) Price: $10 ea. $20 for END/prime key
Yamaha CS-20M- Same as all SK and CS series except CS-30, 50, 60 and 80. (CS-10?) PRICE: $10 ea. $16 for END/prime key
Yamaha DX7- Fits SY77, EX5, and motif7 at least and See Korg M1 above. PRICE:$4 ea.
Yamaha SY55- Fits Korg X3 and many Yamaha combo organs etc. as seen above under "Ridged". PRICE:$4 ea.

I stock a good number of used keys and some new, all of which you can see an example of a normal white key in these images. Pricing structure is typically just sub retail for more common keys (since although they are used, all the keys are in practically new condition). Ones which are no longer commercially available however special end keys are at least 2x the price. Also more rare keys are scaled up with the value of the synth in mind.


Key Bushings for Pratt-Read movements


(WARNING: spray a lube like armour all or stp equiv. [a silicon based lube] on bushings right before installing the key over them!)

Bushings (1-9)     .45 each plus $1.50 shipping US

Bushings (10-24)     .42 each plus $1.50 shipping US

Bushings (25-99)     .39 each plus $1.50 shipping US

Bushings (100+)     .35 each plus $2 first 100 and $1 for each extra 100


Each synth on the site's parts/keys link should point to one of these categories eventually and one should be able to see a list of all synths that use that key type. I have no vision to address HAMMER ACTION units at this time because they are usually supported by the manufacturer well and break less often of course, and are much more complicated and subtle in variations no doubt. Fatar has manufactured a lot of the hammer action movements used by Alesis, Ensoniq, and others.