floppy low level format question

From: Tony Duell <ard_at_p850ug1.demon.co.uk>
Date: Mon Jun 14 19:10:42 2004

> PS: The old Micromation floppy controller (CP/M 1.4 days) used NEITHER
> chip family, did their own formatin LS TTL, and practically no one can
> read them.

I have a Micromation Doubler in my CASU Super C (S100 bus CP/M machine).
>From what I rmemeber the single-density (FM) format is standard, and can
read/write IBM3740 disks. The double density format, though, is probably
unique to this card.
 
> You can probably do all this in a PC sound card these days!

Not many sound cards will handle 500kHz signals, surely?

-tony
Received on Mon Jun 14 2004 - 19:10:42 BST