Set of test OPL2 (YM3812) tunes from DOS games replayed on Atari 520ST+ (16-bit home computer from '85, 8 MHz) equipped with new OPL3 audio cartridge prototype which I've designed (without DAC part), assembled and manufactured.
In comparison to other devices presented on this channel, cartridge version has lowest cpu overhead when sending data to OPL3 chip.
More background info behind this on my website: nokturnal.pl/2...