haven't really fully confirmed if it's a 1.2M drive. TEAC FD-55GFR 142-U, because I haven't actually come across any 1.2M formatted media.
Teac FD-55GFR is a 1.2M drive that can also be used as a 720K 5.25" drive. (FD-55G is 1.2M; FD-55F is 720K)
On Mon, 4 Nov 2024, Chuck Guzis via cctalk wrote:
Just be sure to set the drive jumpers so that the spindle speed is 300 RPM, not 360, which is the usual default for PC drives.
Earlier, he mentioned having to switch data transfer rate from 250K bps to 300K bps:
" I did have to change the IMD Settings to Sides Two, Double-step On, and the 250kps to300kps. I don't fully understand that last setting, but absolutely it was necessary - the IMD image file wouldn't write to disk otherwise."
IFF that is the same drive, then THAT would certainly imply that the drive is currently running at 350 RPM
(at 360 RPM, unless the data transfer rate is switched to 300K bps, each track will be too long to fit in a single revolution) -- Grumpy Ol' Fred ci...@xenosoft.com
