Re: Using an Apple HD 20 on a IIGS

[Wayne Stewart <waynes@intergate.bc.ca>]

Mike Pfaiffer wrote:

>
>
>         No. But the suggestion was made earlier in the thread a UDC *might* do
> the job if any were around. I used it to control a Unidisk on a my //e
> at the time. I merely mentioned a potential source.
>
>         If someone could get the schematics and update it we could be looking at
> something useful for both the GS and earlier slotted Apples.
>
>                                 Later
>                                 Mike

One of the chips on the vtech UDC appears to be a custom chip which would likely
make
such a project unfeasible as short of having to order thousands of chips the only
source
would be off a Laser computer motherboard.
A possibly better option might be to produce some blank Superdrive cards. It'd
require a
SWIM chip but there's a lot of old Macs around. Maybe a few of the surface mount
chips
like the 65C02 could be changed to regular chips. I believe, maybe incorrectly,
that you
should be legal enough producing a blank card.

    Wayne