Yes, a coarse coffe filter will do for glass shards. Hg will sit on top of
the filter unless vacuum is applied. You can use a vacuum cleaner as a source.
I think that would provide enough vacuum but you need an airtight path. A lab
flask with a vacuum tap, cork and a funnel is best.
Paxton
Astoria, Oregon
Hi all,
For a project I need one of the above beasties. If you have
one (or several ;-) and could be coerced into parting with
them, contact me off-list and we'll agree on terms ..
Thankee,
Fred
--
Fred N. van Kempen, DEC (Digital Equipment Corporation) Collector/Archivist
Visit the VAXlab Project at http://VAXlab.pdp11.nl/
Visit the Archives at http://www.pdp11.nl/
Email: waltje(a)pdp11.nl BUSSUM, THE NETHERLANDS / Mountain View, CA, USA
W/out having the docs to hand, I would like to know the actual
electrical specification for the LTC line as implemented in LSI-11 -type
systems... what is the backplane (and hence the CPU, etc) expecting?
Waveform type? Freq range? Levels? If pulses, TTL? CMOS? Duty cycle? Rep
rate?
I need to simulate the incoming LTC signal for a system that will not be
mains powered.... in the older 11/xx systems, this was derived from one of
the windings of the power supply transformer, then made into
line-freq-rate pulses by the using module.
I'm planning on using a small naptha-burning steam engine driving a
modified Wimshurst static generator, and then using a calibrated spark-gap
with an RF pick-off. If I adjust the mechanical governor very precisely,
and calibrate the gap length based on humidity and barometric pressure, it
should be possible to get reasonably stable 50/60 Htz signals...
Cheers
John
PS: Please ignore the silly bits.
I thought this might be interesting to some...
--
Sellam Ismail Vintage Computer Festival
------------------------------------------------------------------------------
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---------- Forwarded message ----------
Date: Thu, 2 Sep 2004 11:17:47 +0200
From: Alessandro Ludovico <a.ludovico(a)neural.it>
To: a.ludovico(a)agora.it
Subject: The Aesthetics of Computer Viruses - I love you [rev.eng]
I love you [rev.eng]
The Aesthetics of Computer Viruses. German Exhibition on International Tour
Providence (USA) / Copenhagen: The return of
"Made in Germany" - "I love you [rev.eng]"
(rev.eng = reverse engineering), the extension of
the successful exhibition in Frankfurt devoted to
the phenomenon of computer viruses, is going on
an international tour. It can be seen from
September 11th to October 4th at the renowned
private Brown University in Providence, Rhode
Island, USA, and then from October 7th to
November 14th in the Museum for Communication in
Copenhagen, Denmark.
Nowadays computer viruses are an integral part of
our computerised everyday life. The damage to
national economies caused by the more than 90,000
viruses that have already appeared worldwide runs
into many billions. The independent US research
institute Computer Economics puts the damage in
the case of "I love you" in 2001 alone at 8.75
billion US $. But not all computer viruses are
harmful. Computer viruses can also result from
experimentation with (programming) language. "I
love you [rev.eng]" is the first exhibition
worldwide dedicated to the phenomena of computer
security and computer viruses, and takes up both
these aspects to carry out a controversial
experiment with contemporary culture that goes
far beyond current vehement debates on hacking.
"I love you [rev.eng]" is divided into political,
technical and historical areas of investigation
and focuses on the controversial positions of
security experts and hackers, of net artists and
programmers, of literature experts and code
poets. What actually is a computer virus? Who
creates them, and why? What sort of world is
hiding behind these everyday phenomena? The
exhibition provides background information,
presents artworks, and reveals the role of
computer viruses as a destructive force and
economic threat as well as an inspiration for
creative art. "I love you [rev.eng]" is conceived
and presented by the cultural organisation
digitalcraft.org based in Frankfurt, Germany.
"digitalcraft.org sees itself as a future
oriented model for a changing understanding of
cultural communication," says Franziska Nori, the
leader of the digitalcraft.org team. "The big
question being raised by the exhibition as to
what digital culture is today and will become in
the age of the information society doesn't only
determine contemporary artistic and cultural
production, but is also intended to motivate
cultural institutions to rethink their practice
and their own role."
What can visitors to the "I love you [rev.eng]" exhibition expect?
- Computer viruses in close-up. At isolated
terminals ("in the zoo"), visitors can activate
infected data with viruses like "Sasser" or
"Suicide" and force computers to close down. A
presentation of the 30 year history of computer
viruses and their technical development offers
background information on the development of this
phenomenon right up to the present day.
- Virus outbreaks in real time. An interactive 3D
game world has been developed specially for the
exhibition to allow visitors, by operating a
joystick, to experience in real time the
otherwise invisible processes involved in a
global virus outbreak. Visitors can also click
together their own viruses using a computer with
so called virus construction kits like the ones
often used by budding hackers to flood the
Internet with evernew viruses.
- The web artists 0100101110101101.ORG and
epidemiC present the computer virus
"biennale.py", which, over and above being a
self-reproducing program, has been declared as a
social work of art. The work "The Lovers" by the
British artist Sneha Solankis creates, using two
mutually-infected computers, an analogy between
the distorted communication between the computers
and that between lovers. '"I love you" [?but do
you know what love really means?]' by the artist
Caleb Waldorf is an
installation video montage reflecting how media
represents the phenomenon of viruses and how
governments and corporate entities react to the
increasing threat of cyber terrorism.
- Insights into the heterogeneous culture of
hackers with a broad spectrum of film material
created in the scene itself, including "Freedom
Downtime" by the New York hacker community 2600,
and "Hippies from Hell". Historical and current
material provide insights into the development of
the scene from its origins in the late 50s, when
the term "hacker" was a neutral word for students
at the MIT who lived out their fascination for
logical tasks and enthusiasm for understanding
the new computers, to the criminalisation of what
is now known as the VX Scene, to the
commercialisation of the phenomenon, supplemented
by a wealth of interviews in which various virus
authors talk about their motives.
- The aesthetics of the source code. Apart from
its pure functionality, a program code (which
computer viruses are based on, just like any
other computer program) can also be an aesthetic
and artistic creation. "Obfuscated C Codes" are
examples of such highly virtuoso programming. The
exhibition presents two exceptional contributions
>from the "International Obfuscated C Code
Contest" that has been held regularly since 1984,
the three-dimensional flight simulator by C.
Banks (1998) and the Saitou.c Code by Don Yang
(2000), a program with a graphic layout that
generates a set of mutually reproducing programs.
- Program code as language. Here, comparisons are
drawn between traditional poetry and contemporary
code poetry. The unbroken line from the Carmina
Figurata of antiquity and the Middle Ages via the
concrete poetry of the 19th Century to modern
poets and contemporary code poets show a
coherence of form that reveals the source code as
a new material for contemporary poetry.
- Internet security. Security concepts and
current methods for preventing global attacks on
the network are presented for an interested
audience.
Through a collaboration with experts at Brown
University's Watson Institute for International
Studies and researchers from Symantec - the
market leader in internet security -
digitalcraft.org further delved into the
political, economic and social actuality of this
subject. At both locations, the exhibition will
be complemented by symposiums, in the USA with
the theme "The Power and Pathology of Networks".
The cultural organisation digitalcraft.org is
taking up with this project the challenge of
exploring complex virtual phenomena and
presenting them in a visual way. "I love you
[rev.eng]" (rev.eng = reverse engineering) is the
revamped and expanded version of the initial
exhibition which was successfully shown in June
2002 in the Museum for Applied Art in Frankfurt
and in February 2003 at the "transmediale.03" in
Berlin.
Further information on all exhibits, the digital
version of the exhibition catalogue and extensive
pictorial material can be found on the project's
website www.digitalcraft.org/Iloveyou (+ press
section) or direct from:
Dr. Gabriele Reinartz
PR and communication
Phone: +49 (0)171 / 8 34 56 48
Fax: +49 (0)69 / 48 00 61 32
E-Mail: gabriele.reinartz(a)digitalcraft.org
http://www.digitalcraft.orghttp://www.infopeace.orghttp://www.watsoninstitute.orghttp://www.ptt-museum.dkhttp://www.symantec.com
Brief profile of digitalcraft.orgdigitalcraft.org was founded in 2003 as a
spin-off of the "digitalcraft" section of the
Museum for Applied Art in Frankfurt am Main
(2000-2003). Its mission is to research and
document fast-moving trends in everyday digital
culture and to present them to the public. Since
2003, digitalcraft.org has been an independent
cultural organization under the direction of
Franziska Nori. Its work includes
interdisciplinary exhibition projects such as
"adonnaM.mp3" (2003) on the phenomenon of file
sharing, "Origami Digital" (2003) on the digital
demo scene, public lectures and publications, and
consultancies for public institutions and
museums. The subjects it explores reflect the
rapid development in communications technologies
and methods and their significance for modern
society.
Brief profile of the Watson Institute for International Studies
Brown University in Rhode Island is one of the
most renowned private Universities in the USA.
One of its associated institutes is the Watson
Institute for International Studies, named after
its founder, which is dedicated to
interdisciplinary studies. Under the direction of
Prof. James Der Derian, the "Information
Technology, War and Peace Project" has been
started up to make a targeted analysis of the
potential impacts of network structures in the
globalised society. In September,
"InfoTechWarPeace", a new, one-year research
project, is starting up with the heading, "The
Power and Pathology of Net-works". The central
matters it will be dealing with involve analysis
of the questions: What new forms of global
security and governance are needed to manage the
potential, allocate the resources, and reduce the
risks of networks? How do we assess the dangers
of global interconnectivity (networked terrorism,
computer viruses, pandemics) against the vaunted
benefits (increased transparency, higher
productivity, global interdependence)? The
research project will be inaugurated with a
symposium and the "I love you [rev.eng]"
exhibition.
--
Alessandro Ludovico
Neural.it - http://neural.it/ daily updated news + reviews
English.Neural.it - http://english.neural.it/
Neural printed magazine - http://neural.it/n/nultimoe.htm
ard wrote:
>I always prefered the catostatic.
>
>[OK, a joke. I have a book on making electrostatic generators and one of
>them is called the catostatic. As you may have guessed by now, this
>involves stroking your cat and collecting the accumulated charge in a
>Leyden jar... Knowing my cat, he'd probably get rather fed up with the
>whole idea...]
>
>-tony
I can't resist. If he's fed up, get a cat wrestler to teach you a
good hode to put on him so he won't escape. (Get it? cat-hode?)
Of course, that only works on a young cat - never anode one.
--
- Mark
210-522-6025, page 888-733-0967
Whew! I'm in Santa Fe typing this at a wifi hotspot, and now that Ive
retrieved my Objects, after protracted years of wangling, I feel safe to
post more about the vintage gear at Los Alamos Sales Co (aka "the black
hole") in Los Alamos NM.
I'll post photos, black hole info, etc when I get home next week, but
here's a quick rundown:
It's not a vintage computer place; it's LANL/LASL surplus. Some of it
dates back to the 1950's, but most is more recent.
THere is a wad of Beige Era junk, I step over it, I'd say a cubic cubit
(CC).
Bazillion IBM typewriters of all sorts, including wide-carriage types.
A CC of cards, paper tape (unused) including DEC factory fanfold.
Big stack of RCA CDP1802xxx boards mounted in custom rack mount chassis.
Full complement of RAM and monitor EPROMs. About 10. I have
documentation on the RCA board at home. SOme missing 1802's, BFD.
Random piles of some DEC modules. I cannot ID these; two plstic handles
on human end, cardedge on the buss end. 80s. RAM boards. Some
new-in-boxes (but those could of course be "return for repair" after
module swap.)
Grey Era IBM card equipment. CDC Cyber terminals.
Nukeular Data Corp (that's a joke son, a joke) ND-811 computer(s?), with
dual-floppy, and a bunch of other similar vintage junk. The ND811 (I
think it is, photos will tell) is all wirewrapped, so likely it's NFG.
CCs of HP, TI calculators. We earlier found complete sets of working
HP25's with card readers complete with bomb-crater calc software on
magstrips (utterly non-classified; it's a standard physics calc).
Lots of odd peripherals. Tape drives. Floppies. Tek stuff. Old fiber
stuff. IBM manual, schematic and listing sets back to the 360 days (some
in the church, access limited). Vacuum column drives.
(There is a secret cache of multiple CC's of paper tape gear. Access is
extremely limited to this particular room, even finding it is hard... as
me personally if you are UP THERE and SERIOUS. No peeing in the pool!)
Keep in mind this stuff is scattered ALL OVER THE PLACE on towering
shelves in a 50,000 sq ft ex-supermarket. It's out of the weather, but
it gets COLD UP THERE in the winter, so things like wirewrap are suspect
at best.
Some things are in the church (yes one of those denominational praying
peripherals) which !@#%% kids busted some windows, so there's a little
rain on one edge, but worse, the birds and bats nest in the Nelson
bubble lamps and SHIT all over everything, it's a terrible shame. The
church is largely off-limits, and Ed has a strange relationship to its
contents, and it is extremely hard to extract objects from it. Ask Me
How I Know... and I've been going there for 10+ years. There's also some
Wang calculators rotting up there, plus a Friden or Wang desktop
computer (!) in seemingly-operable condition (I moved key items out of
the range of rain and aerial poopers, at least.)
I can assure you you won't find an undiscovered cache of working minis
up there, but there's a LOT OF MISCELLANY.
Pricing is extremely erratic, and if you get him mad, he won't sell it
to you. Standard surplus/junkyard rules apply, plus Ed's peculiarities
(a relatively minor item I've worked on getting out of the church, for
>> 5 years, "oh no, that goes in the museum..."... he has dreams of
building a big museum to the bomb up on the hill, if an item becomes
museumized it becomes irretreivable.
Oh yeah, there's 100K CC's of extraordinary surplus and exotics, plus
office furniture, electronic parts, lab-made test gear (increasingly,
anything clearly labelled "AEC" becomes museumized), racks, machine
tools, granite tool slabs, ad nauseum. (Our kitchen is completely outfit
with putty-green lab benchware and glass-fronted, sliding-door shelving,
all ball bearing 18-gauge quality).
Please drop my name when you go -- it's no ego for me, but Ed knows me
and I told him I'd refer people up there, and you're likely to get a
better deal. Plan on spending a day there, or better yet, two days.
Seriously, I've been going there since 1994 and never get to see it all;
it grows monthly and his assistant Frank, an ex-lab nerd and artist, has
done an amazing job of organizing and extracting crap.