DX7 EPROMS, BBQ or Vinegar

"[email protected] [YamahaDX]" <[email protected]>
Newsgroups gmane.music.equipment.yamaha-dx
Message-ID <[email protected]> 
I don't have one in front of me but I am sure one is coming. A good old simple DX7.
 I see the one time writable TMM24128 is used and I am curious will a 27C128 work as a firmware replacement?
 Also In the files there is a DX7 firmware bin file but no version to be found. Does anyone know what the last version was for a stock DX7? and where can it be had.
 Thanks All !
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