18 Mar
2014
18 Mar
'14
4:31 p.m.
On 03/18/2014 03:58 PM, Fred Cisin wrote:
In Teac drives, A seems to be 48tpi single sided, B
48tpi double sided
(aka 360K), and F is 96TPI DS. G is 96tpi "high" density (aka 1.2M). I
don't know whether D or E is 96tpi single sided.
The FD50 seems to use this convention, as far as I can tell. A=48tpi/1
B=48tpi/2 C=100 tpi/2 D=100tpi/2 E=96tpi/1 F=96tpi/2. I don't know if
there was a 50G, however. (The Sord used FD50C drives)
That's as far as I can tell. Fortunately, there aren't too many of
these old slow buggers around to get a verifiable sample. They were
twitchy even when they were new.
--Chuck