9 Dec
2007
9 Dec
'07
7:02 a.m.
> I have a machine with a 77711501 floppy drive and
it's bad.. I have
> tried 3 different 360k drives. I tried to find specs on it but so far have not.
> What is the difference between that drive and a 77711800 used in a PC
> The computer just says there is a drive error. I'm using the same jumper
> settings on both. I have also tried a Teac fd-55bv.
> Is it a 320k drive ??
Hi Jerry,
My guess is it is a single sided 180K / 160K drive however I think CDC
made full height 80 track Quad density drives also. Is there any date
on it?
My bet is based on the last three digits of the number. Since 800 is
the PC drive, 501 is probably earlier and if it is one of the earliest
the 5 1/4 single sided is a good guess.
I can't find my copy of Mini-Micro Systems that covers those disk
drives. Does anyone have an archive of that publication? I lost my set
in my house fire in 1989. They had great summaries of who made what
parts, computers, printers, drives etc in the late 70s and early 80s
along with some specifications.
What system did it come out of? Age?
Any termination on the drive?
Paxton Hoag
Astoria, OR
USA