Replacements for ST-406/ST-512 drives

[Tony Duell]

> I guess I must be thinking of some other system; I remember on
> various Multibuss boxen, and some CP/M hard disk systems, there
> was a "standard" formatter/controller that had the same
> form-factor as the 5.25" HD, even mounting with little standoffs,
> and cabled closely to the drive; the other end of the controller I
> thought was some 'standard' interface (George Morrow quote on the

If you're lucky the host interface on that sort of board is SASI (SCSI is 
possible, but not common). Otherwise it might be a custom interface, but 
it'll probably be 8 data lines, some register select lines, etc. 

But of course the problem is that many machines didn't use that sort of 
adapter board.

-tony