It's easy to fool oneself into believing the DAVONG controller should have
either the WD-1000 (a 50-pin interface) or the SASI, but simple inspection
indicates that DAVONG used signals on both even and odd numbered pins on their
controller. I acquired mine in the hope that they'd stuck to the reference
design that Western Digital put out with their WD1100 chipset, but they
apparently didn't.
I have a couple of the WD1100-based WD1000 controller boards in a version made
by/for Televideo for their TS806 machines, of which I have a couple (not working
at the moment, though they previously worked as spoolers in my earlier PC-system
architecture) and was contemplating modifying the PLL and swapping the crystal,
thereby making the board compatible with 8" HDD's. It just requires a crystal,
a cap, an inductor, and a moderately complicated retuning of the varactor-based
VCO on the board. The procedure is quite clearly outlined in one of the very
early WD-1000 manuals I have. The road to hell, they say, is paved with good
intentions ...
That power supply and enclosure are somewhat odd. The box is completely sealed
off at the front, as one might justify for a HDD, but since the thing has
supplies capable of supporting it, I was once considering putting an Ampro
Little board and a floppy in there with a HH HDD. The metal working discouraged
me from it long enough to take it off the list of things to do.
Dick
----- Original Message -----
From: "Ethan Dicks" <ethan_dicks_at_yahoo.com>
To: <classiccmp_at_classiccmp.org>
Sent: Sunday, July 01, 2001 12:02 AM
Subject: Re: WTB: 8" floppy
>
> --- Richard Erlacher <edick_at_idcomm.com> wrote:
> > The old (1981-82) DAVONG hard drives for use with PC's came packaged
together
> > with a WD 1100-series chipset based HDC that talked some protocol specific
to
> > that device...
>
> I think I got one of those at Dayton a few years back (> 8)... It was sold
> to me as a SCSI enclosure, but a moment's inspection once I got home revealed
> that to be false. I might have the board around; I know I have the Davong
> enclosure somewhere - used it for a while with an ACB-4000 on my Amiga.
>
> -ethan
>
>
>
>
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Received on Sun Jul 01 2001 - 08:55:14 BST