HP tape drive novel repair
mloewen at cpumagic.scol.pa.us
Tue Jan 20 08:38:03 CST 2015
On Tue, 20 Jan 2015, Jay West wrote:
> Mike wrote...
> I have a 7970E in a 7971A rack, which can take two 7970E drives. I elected
> to mount a 2109E and a 9895A underneath the 7970E.
> Nice rig. You have one of the "newer" style racks which have a more
> (industry) standard post/mounting setup. I had one or two of those, but got
> rid of them in favor of standardizing on the older style racks which I had
> more of (02940-90306). Plus my dual 2100-based Access system is in the
> "correct" rack, which was the dual bay with the front "running board"
Those 7971A cabinets are HEAVY, even without the 7970E! I'm very
limited by space and rack availability. The 7970 came in the 7971. I
took the whole rig to VCF East last year, along with a 2645A, a 2647A and
a PC to run the HPDrive emulator, with RTE-6/VM. This year I'm exhibiting
a TRS-80 Model 4. :-)
> So this system build will have 3 racks, two 2940's (one for two cpus, one
> for tape & 13037), and one of the 29425A's with a 7906.
I'd like to find a 7906H, if such a thing exists in the wild any more.
> I've also worked on a 7970E in the slanted "low boy" cabinet. There's a lot
> of wasted space in there.
> Very cool. I've always wanted one of those, just cause they look so neat.
> But like Marc, I have never seen one in the wild.
As I mentioned, not very space efficient. That was actually the first
thing I worked on when I reported to work at Atlantic Tech Services in
Gaithersburg, MD in 1986. They rolled out the 7970E and said, "Here, fix
it". :-) "Okay, I need the service manual, a scope, and something to run
the diagnostics on." They pointed me to a Tektronix scope sitting in a
cabinet, and told me "Here's the scope, but we don't know how to use it."
ATS was a 3rd party HP maintenance shop just getting started, but
things ramped up very quickly.
I really like the looks of the desk systems, like the 3000 Series 48.
Space-wise though, I'm the lookout for a reasonably priced Series 42.
There's been one on Ebay for months for $1,725 but I consider that
Mike Loewen mloewen at cpumagic.scol.pa.us
Old Technology http://q7.neurotica.com/Oldtech/
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