Is the battery from your Korg Poly61 original, or has is been replaced? There is a high risk of leak & internal damage with this model, so it should be checked before the sale. Ayway, it will be the first question a potential buyer will ask...
-Roland JX3P, D50, Juno 106, MKS50, JP8080, U220, MVS1, TR707
-Korg M1R/M3R, MicroKorg, Kaossilator, Monotron X3
-Yamaha DX7, TX816, Motif Rack
-DSI Mopho, EMU Proteus FX
For Sale: Roland CM64 MSE1 MDC1 MOC1 MBD1, Korg Micro X, Future Retro 777