Disk drive parts
ard at p850ug1.demon.co.uk
Thu Aug 4 18:21:43 CDT 2005
> I have a Diablo 30 and I need cables for it. I've been told that it can
> be used with the PDP-8 but I need to find out which interface it requires.
The Diablo Model 30 has a similar interface to the RK05, apart possibly
for the select lines. The Model 30 has 1-of-4 selects (a bit like a
floppy drive), the RK05 _can_ do that, or it can do 3-bit binary selects
(this is seelcted by a pin on the RK05 connector). The former, of course,
allows up to 4 drives per cable, the latter 8.
Anyway, it should be possible to get it to work with an RK8E controller
(IIRC your PDP8 is an Omnibus machine). Maybe you'll have to a add a bit
of logic to sort out the selects, but that's not exactly difficult.
Do you have the PSU for the Model 30? It needs +/-15V at a fairly high
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