about ESD tolerant! Get a load of that electron beam welding computer
memory. Of course, that isn't silicon - it's magnetic core memory, the
kind with tiny toroids with 4 tiny wires running through them for the
read and write operations. If you want a computer memory that will survive
a nuclear EMP, this is your answer. Hook it up to your electron tube
computer and you'll be playing Pong while all the other survivors are
back to tic-tac-toe with pencil and paper!
May 1967 Electronics World
of Contents] People old and young enjoy waxing nostalgic about
and learning some of the history of early electronics. Electronics World
was published from May 1959 through December 1971. All copyrights are hereby acknowledged.
Electronics World articles.
See all the available
Electronics World articles.
Recent Developments in Electronics
Beam Welds Computer Memory. A sharply focused beam of electrons
is being used to perform tiny precision welds on critical electrical
connections for computer memory arrays. The beam welder is used to connect
the terminals of ferrite core planes with those immediately above and
beneath them in the array. Using the electron-beam technique, these
precise welds can be done in a continuous operation rather than singly
as with conventional welding. The welds produced are uniform and look
like ball-shaped nuggets. This makes it easy to spot a poor weld during
quality-control inspections. During manufacture, the tips of a column
of electrical terminals are automatically and sequentially passed through
the electron beam until the entire side of the array has been welded.
All four sides of the array are welded in this way. The technique is
now being used on the production lines at IBM's Kingston plant.
TV Studio. A new one-man television studio expressly designed
for classroom and industrial training was demonstrated recently. The
console-size closed-circuit TV unit brings multi-classroom instruction
using audio-visual techniques within the reach of every size school
and plant. With this new equipment, a single instructor can combine
live instruction with video-taped lessons, films, slides, photographs,
charts, and other graphic material. The resulting program can be transmitted
live or recorded on video tape for later use. The teaching unit combines
two TV cameras and standard audio-visual aids with simplified up-front
controls. The basic studio, called WAVE (Westinghouse Audio-Visual Electronics),
will sell for about $12,000. A companion recorder for video and five
different audio tracks is also available separately. The studio is easily
adapted to microwave transmission of programs to remote areas or to
on Wheels. A 40-foot trailer, chock full of electronic recording
equipment, is helping nuclear physicists at the Argonne National Laboratories
look deeper into the atom. The traveling lab serves as a mobile recording
center for advanced atomic experiments conducted jointly by Argonne
and the University of Chicago's Enrico Fermi Institute for Nuclear Studies.
The study is devoted to a detailed analysis of the beta decay of the
lambda particle and utilizes Argonne's 12 1/2 billion electron volt
proton accelerator, the second largest unit of its kind in the country.
The trailer, built by Brown Trailer Div., is equipped with a 5-ton air
conditioner and acoustical-tile ceiling to provide a cool, clean quiet
environment for the lab.
"Canned" Weather Satellite. The engineers shown here
are giving a new Tiros Operational System (TOS) weather satellite its
final check before "canning" it for shipment to the Western Test Range
in California. The satellite is to provide daily global coverage of
the earth's weather. Now in orbit, it is known as ESSA 4 and is taking
over from ESSA 2, which has been in orbit over a year. Additional Tiros
weather satellites are on the assembly line at the RCA Space Center
in Princeton, N.J. for replacement.
Military Communications Satellites in a Pod. (Below) A protective
shroud is being lowered over this group of communications satellites
at Cape Kennedy prior to launch last January. The eight were hurled
into space by a single rocket to complete the nation's first global
military communications satellite network. The new Philco-Ford satellites
joined seven others that were orbited last June to form a radio network
that will permit the Pentagon to contact our military forces located
in Vietnam and elsewhere.
Scanner Reads Weather Data. An improved model of a film optical
sensing device for input to computers has been completed by the National
Bureau of Standards for use with computers of the National Weather Records
Center in Asheville, N. C. The device reads data on past weather conditions
from microfilms of punched cards and selects data to be tape recorded.
This permits ready comparison of past and present weather data and should
result in improvements in the weather predictions.
Pulse Generator. (Below) The generator shown here, when triggered,
can deliver a million-volt pulse with a risetime below 50 ns and an
energy in excess of 100 joules. The instrument was designed as a research
tool for the experimental scientist engaged in high-energy work. It
also has uses in electronics, such as for antenna and surge-protector
testing. Special safety and interlock features are incorporated to minimize
danger to personnel. The generator, built by Instrument Research Co.,
sells for $12,000.