Need SA400 help

From: Fred Cisin <cisin_at_xenosoft.com>
Date: Mon Oct 28 19:06:00 2002

> > modifications were not very rare. For example, the Apple][ used an SA390,
> > which was the SA400 with different board. Some peddlers of aftermarket
On Mon, 28 Oct 2002, Tony Duell wrote:
> I always believed that the circuit board on an Apple Disk II was an Apple
> desting. Are you saying it was actually a standard one, used by other
> companies too?

Correction to my previous post: the SA390 appears to be an SA400 WITHOUT
a board, to which other companies (Apple, etc.) added their own board.


> The real Disk II has a single 20 pin header for both power and signals.
> There's +12V on at least one of the pins, and if you mis-mate the
> connector, it ends up connected to a TTL input. Great!

The original post on this thread mentioned not having a "standard" floppy
power connector (Molex), and not knowing the pinout of the
connector(s). Could it be that his SA400 is an aftermarket drive for
Apple (or something else), where the Shugart board was replaced by
something weirder?
Received on Mon Oct 28 2002 - 19:06:00 GMT

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