Just cleaning out storage and decided to sell my one-owner HP150B.
But first I need to make it work. It was working when I put it back in its boxes 20 +/- years ago.
But, I can't get past the pre-boot error message, "Power-on test failed 0004" or sometimes "0000c".
Anybody know these error messages? Or better yet, where I can get a list of power-on error messages?
I'd posted here a while ago looking for info on a Tally 420PR tape
punch and have built a driver board to interface it to a PDP-8A.
But there is a problem with consistent punching/feeding (the
result is often a longitudinal tear instead of holes) even with
the pulse widths set to the recommended 4.5 ms +- 0.5 ms, -24
volts, and the feed mechanism intermittently binds up too.
Currently I'm running it with only the sprocket and feed drivers
hooked up, and simulated punch commands from a 555 timer, so the
result should be continuously feeding tape with just sprocket
holes punched in it.
I suspect the problem is that the feed pulse starts immediately on
the falling edge of the punch pulse, so the pin hasn't cleared the
tape as the feed mechanism starts to move. It also tends to stick
in that position with the tape not moving (you can hear the
solenoids buzzing but the feed sprocket is not moving until
tweaked backwards a few degrees by hand). According to the
schematic, the escapement solenoid (which allows the tape to feed
one row per pulse) is supposed to be actuated internally by
contacts on the feed solenoid so there shouldn't be a timing issue
Does anyone have more info on this punch model, or experience with
these asynchronous mechanisms in general? Is there a requirement
for a delay between punching the holes and pulsing the feed
solenoid? How long does it take for the pins to move up or down
after drive is applied/removed?
I saw this in today's copy of my local newspaper
on-line. The location of the building is in New
Windsor, NY. Stewart International Airport -as
some of you know- sits on the border of the Town
of Newburgh and New Windsor. It used to be and
still is to a degree, a major Marine, Army and
Air Force base. More currently, it is a
commercial international airport and a base for
the Air Force, local Army and Air Force Reserves
and touts a pair of the biggest runways in the
USA. It is the 3rd location on the list for
emergency landings for the Space Shuttles if
something should go wrong. Unfortunately, as this
piece suggests, the military has already removed
the actual SAGE equipment from the building. I
used to go on walks past this building as a kid
as there is a path near it that my family would
take through a wooded area (scenic stuff) and up
until recently, was open to the public, sort of
like a park. I figured I'd send this to cctech
because it has a lot of historical relevance.
-John Boffemmyer IV
STORY AS FOLLOWS:
July 16, 2005
Cold War building faces colder reality
By Jeremiah Horrigan
jhorrigan at th-record.com
New Windsor ? You'll find it on the edge of
Stewart International Airport, a windowless,
four-story concrete cube that looks like it could withstand a nuclear blast.
And that's exactly what it was built to do.
If things had gone as many Americans feared
during the Cold War, if the Russian bombers had
finally come over the horizon, the Semi-Automatic
Ground Environment building was the key to the
country's military defense system.
The building that once thrummed with the
tensions of a time when nuclear Armageddon was a
constant threat was abandonned by the military
decades ago. The unnerving skeleton of its legacy
remain, including the war room, where
etched-glass maps of the Eastern U.S. display
likely Russian targets. Above the maps looms a
doomsday tote board, meant to track the "progress" of World War III.
Even before the '50s faded and ICBMs became
the weapon of choice among the world's
super-powers, the SAGE building had become as
antiquated as an Edsel. It's now slated for the
wrecking ball under the airport's new 20-year master plan for development.
And that plan is under siege by a group of
people who for years have been laboring to
transform the SAGE building into what they call a Cold War Peace Museum.
Ulster County Legislator Susan Zimet has
spearheaded the effort, lobbying, fundraising and
proselytizing on the building's behalf for the past five years.
To her, the building isn't a dead relic but a
living reminder of an era she believes we forget at our peril.
"All the stuff we deal with daily ?
terrorism, the possibility of nuclear terror or
the situation in Korea ? it all began with the Cold War."
Zimet's not much of a history buff herself,
and, after years of exploring possibilities,
she's doubtful the building is suitable for becoming a first-class museum.
But that, she argues, doesn't mean the
building should be demolished. Taking it down (at
an estimated cost of nearly a million dollars)
would be no different than destroying
Washington's headquarters in Newburgh, she says.
Tanya Vanasse toured the building's interior
recently. She wasn't impressed. Vanasse is the
airport's director of marketing. She sees no
reason to keep the building around.
The airport's master plan calls for the
building to come down sometime between 2008 and
2012, to make way for a rail yard that would be
part of a new train station, according to Zimet.
"I can see no viability of making this into a
public space. It's far too dangerous, it's got
far too many accessibility problems," she said
last week. "I could see removing the (etched
glass) pieces and building a display around them."
Vanasse said the plan is open ended, that no
hard-and-fast timetable exists. Nevertheless,
Zimet's group is urging people to sign petitions
that would preserve the building.
In the meantime, the SAGE building, silent
and foreboding as a tomb, continues to do what it has always done: It waits.
Anti-blast from the past was built to last
If it goes, the Semi-Automatic Ground
Environment building won't go easily. Its thick,
lead-reinforced concrete walls were intended to
withstand the ravages of a nuclear holocaust.
Only a direct hit could have taken it out.
The building was designed in the mid-1950s as
part of a network of identical
information-gathering centers built throughout
the country that was supposed to protect the
country's nuclear bomber fleet. Its designers
intentionally made it so nondescript that only a
handful of military personnel even knew of its existence or purpose.
Its computer system was beyond compare,
requiring thousands of square feet and at least
as many delicate transistors to track potential
intruders. Watching the skies at a SAGE building
console, said one retired Air Force veteran, was
like something out of "Buck Rogers."
But, like so many other state-of-the-art
defense systems, this one was obsolete almost
before it became operational. It was designed to
combat nuclear bombers. By the end of the decade,
intercontinental ballistic missiles had become
the bomb delivery system of choice.
The structure was officially decommissioned
in 1969. Since then, it has served as a
free-trade zone. Its ground floor is now occupied
by a chocolate- packaging factory.
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While reading an old resume, I came across something I forgot about. I
used to admin some 3Com 3+ and 3+/Open systems. 3Com made the hardware
(beefed up PC stuff) and wrote or owned the OS.
Anybody know what became of 3+/Open?
JD Fogg Technology Consulting
18 Watershed Lane
Wilmot, NH 03287
I found one of the rom images I put up was a bad prom. Another one read
consistently but didn't match two other sources. The images have been
replaced. Affected images : 752A9, 248F1, 616F1. I replaced them after
getting multiple other images and comparing, so I'm confident the ones up
now are all correct.
I'd like to post source listings for the boot programs. Anyone got a program
to re-arrange the bits correctly, then disassemble?
A colleague of mine is looking for a boot disk for a Kaypro 4 '84. He
"I have a Kaypro 4 (83), Kaypro 4(84), and a Kaypro 10.
The boot disks for all three are mutually incompatible.
What I still need is a boot disk for Kaypro 4(84)."
(These are 5.25 inch floppies, of course. An actual disk would be great,
but he says that if somebody wanted to send a disk image, he could work
with that, as long as he knew what program was used to create it.)
Can anyone email me images of all boot disks or direct me to appropriate
web site? I will reimburse postage/disk costs if someone wishes to send
physical disks instead of emailing images.
Hi Thom, I don't know where you can find Orbis drives. But if they are the
original style single sided drives then you can also look for Remex 8"
drives. Remex manufactured paper tape readers and punches and then branched
out into Floppy drives. They purchased units from Orbis and relabled them at
Remex also made a series of drives using a plastic base casting. It was a
legendary cost reduction and ensured that nobody else would make that same
mistake again. The casting would shift enough in normal use to give
constant read and write errors. It was a loser then and I doubt it has
improved. In my opinion, using Remex with valuble data is where you want to
stop being "original or authentic" in your restoration. Install another
vendor or don't use Remex for real data. You can use it to make the disk
go around, but even just spinning the disk made wierd schreeching noises.
In all my testing, I never found one that could read its own written disks
more than a few days. It was one of the worst drives ever made and
deservedly died an early death.