From what I can see, the card supports 360K drives only. I see a single 16MHz crystal and an 8272 FDC along with some basic support circuitry (roughly, the leftmost 1/3 of the card). On the other hand, I see an empty socket for another 8250 UART if you wanted 2 serial ports.
The Chinon 502 is a 360K drive; I was off by one line in my lookup. So that drive goes on your PC. The Teacs and the Mitsubishi are the 1.2M drive. However...
While you can format a 360K floppy in the Chinon and read it in the Teacs and Mitsubishi, but you cannot format or write it in the Teacs or Mitsubishi and read it on the Chinon. The reason for this is that in 360K mode, 1.2M drives record every other track (they record 96 tracks/inch) to match the 360K format (48 tracks/inch). So when you try to read a floppy written by a 1.2M drive in a 360K unit, it picks up extraneous "junk" from the odd-numbered tracks that weren't written.
