Re: Apple //c+ w/Apple HD20 hard drive

[Chet Gerhardt <transit@wco.com>]

Randy Shackelford <shack@deimos.frii.com> wrote:
: The fact that the plugs are the same has no bearing on whether they can work
: or not. External 400K, beige 800K, and HD 20s all have DB19 connectors,
: yet none are compatible with IIs. Later models of 5.25 drives have the
: same connector, yet they don't work on Macs. Ditto Unidisk 3.5 drives. Heck,
: super serial cards and SCSI cards both have DB25 connectors, but you can't 
: interchange 'em, to take an extreme example.

: Bottom line is, only stuff designed to work with IIs will work, regardless
: of whether it can physically connect up. Like I said, only Chinook hard disks
: will work.

: The point here is it's generally not a good idea to just try something merely
: because someone says it might work. I wouldn't risk roasting my hardware 
: without getting a definitive answer. And in this case, that answer is no
: dice.

I might add that the 'HD 20' also does not work with the Apple II
Superdrive Card (Several people have asked me about this application).

The best use for the 'Apple HD 20's' is for the Pre Mac+ Macintoshes with
only the floppy port to connect a HD to.  They have value in making an old
Mac useful.  Please do not confuse the 'HD 20' with the Apple SCHD 20,
they are not the same.....

Chet