Sorry if this is in the wrong topic, but here is some interesting information about the Sega Master System PSG chip for all of you SMPS geeks out there http://web.inter.nl.net/users/J.Kortink/home/articles/sn76489/
Correct me if I'm wrong, but isn't this chip (along with the YM2612) present in the Megadrive/Genesis as well? Because the YM2612 and SN76489 would give the Genesis 10 channels, right? Very interesting read, along with the page it links to (this page). Thanks for sharing!