“This one contains 7 TF1 modules – each of these modules is contains the synth engine from the original vintage Yamaha DX7.
A new set of batteries was soldered in place so you shouldn’t have to pay anyone to do this now or worry about losing your patches anytime soon. The same bank of patches has been loaded into each of the TF1 modules. Properly tested post-servicing and working and sounding great!” Click here to visit listing on eBay