Here is the link to where Tim has the audio samples http://www.smspower.org/forums/viewt...ghlight=ym2413 again I must have been VERY lucky as you will discover. It was lucky as at the time these were the only 2 FM games I had lol (or maybe it was just R-type...shit it was so long ago)!
Rev 1- 0108 HABG works fine (must have ass'ed this)
Rev 1.1 (both the same) - 9904 HAAG Both work fine
I will be getting another board from him in his next batch, I might grab a spare YM2413 from him. He also thought it strange mine (at the time) played fine. Unfortunately as I said I have removed this FM board as I upgraded to the Rev 1.1 as it was easier to get to work with Wonder Boy 3 and Time Soldiers.
Edit, I just realized that audio file of Scramble Spirit sounds shit. Mine DOES not sound like that..... It sounds heaps out of tune...