Unibus disk controller with modern storage

[Noel Chiappa]

    > From: Paul Koning

    > 1976 Peripherals Handbook, page 6-4. It specifies the driver output
    > low voltage at 70 mA sink, not 50...

Differing editions give slightly different numbers. I was looking at the 1972
edition (which was the one that was closest to hand, no other reason); the
number I gave is on pg. 204. I haven't checked later ones to see if there
were further revisions.

The later 70mA sink spec is probably a slightly more robust number to work
with.

	Noel