MFM/RLL data recovery

[Tony Duell]

> 
> Marvin Johnston wrote:
> > A terminator is also required at the last drive in the chain. Assuming
> > you are using just one drive, not having the terminator installed would
> > probably cause the drive not to work properly.
> 
> Isn't that only a requirement of SCSI drives?  I certainly don't have any 
> terminators on my MFM/RLL drives...

Noo, ST506/ST412 interfaced drives need a terminator too. It's normally a 
resistor pack (either DIL or SIL) that is pluged into a socket on the 
last drive on the cable.

Most ex-PC drives have it fitted anyway. IIRC, drives from IBM came with 
it installed, if you fitted the drive as the second drive in a machine 
(which was the one closer to the controller on an IBM twisted hard-drive 
cable), you pulled the terminator and sellotaped it to the side of the 
drive.

-tony