そういや今回つくばで知り合った方にFM音源の話を振ったらその人もFM音源な人で、セガマークIIIのFM音源ユニットに乗っているYM2413を頂いてしまったので、近いうちに時間を見つけて鳴らしてみなければpic.twitter.com/qoCghYCsan
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@takashioomoto I'm not clear on those numbering rule, but indeed it can be read as April 2014.
@fadis_ the rule seems to be very constant. For example 9103 (Wikipedia picture on YM article) - 3rd week 1991.
@takashioomoto so, it means YAMAHA is still making those FM chips. That’s interesting. I have to ask my friend how did he got the chip.
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