Dave McGuire wrote:
On Nov 16, 2007, at 12:17 AM, tponsford wrote:
A friend mentioned to me he saw what looked to be
some DEC equipment
at a local scrap yard. Looking through the scrap I saw a really sad
looking
rack with some RA81 and 82's. They looked too damaged and too hard
to dig out,
but as I was leaving, out of the corner of my eye, I spied another
"buried" cabinet
with 8" floppy drives. Curiosity got the best of me and a closer
look the cabinet
said KEVEX 1600. The floppies looked to be in good condition so I
removed the
cover plate and lo and behold, a Qbus 11/03 greeted me! I yanked the
third-party
qbus chassis out and also the *" drive cabinet, which turned out to
be a DSD 210!
The scrap yard charged me by the pound, around $20!
SWEET! That was probably an EDAX system for an electron
microscope. I have one for my SEM but it's not quite complete. It's
built around a PDP-11/23 with a Z8000 processor to offload the
spectrum analysis. Now that I'm making some progress getting my lab
built out, I hope to look into that stuff again soon.
-Dave
In the Kevex, the other card cage which presumably had the other cards
for the microscope /lab
system were already stripped out. I think the cover over the qbus
chassis saved the qbus cards in it.
But I have the whole 8" floppy subsystem all in one cabinet and the DSD
qbus controller.
They made controllers for this 210 floppy cabinet for the pdp-8's and
Unibus pdp's too.
This is the third or fourth such console/cabinet I've picked up in the
last year or two.
The others were Tracor Northern, one which I believed contained the
cards for a
control system of scanning electron microscope and the other was for
some kind of
VLSI or electronic circuit development. They were 11/23 based too.
These were all picked up at the local university auctions!
We did had an EDAX system come thru about a year ago. It came with the
Electron microscope!
The salvager who bought the microscope didn't/forgot to buy the control
unit, which I did for
the pdp system. When he realized his mistake he made me an offer I could
not refuse!
By the way, anyone is welcome to these chassis and the boards for them
(minus the
qbus boards and drives) for the cost of shipping. I de-racked them from
the steel
console/cabinets so all that is left are the chassis and the graphic
card sub-systems.
My brother picked up a Comtal Vision One graphic system with an 11/73 in
it and
the cabinet with three rows of graphic boards (around 30-40 cards I
think) is still in his
carport. It was used for astronomy in at one of the the many
observatories here in Arizona!
I believe he still has most of the cabling, the Color Graphic monitors
that came
with the system. He, of course, removed the qbus boards and the 9-track
tape drive
but it otherwise is intact.
He wants to get rid of it to someone who might be interested in it.
Cheers
Tom