digplanet beta 1: Athena
Share digplanet:


Applied sciences






















Basic Charactron tube design

Charactron was a U.S. registered trademark (number 0585950, 23 February 1954) of Consolidated Vultee Aircraft Corporation (Convair) for its shaped electron beam cathode ray tube. Charactron CRTs performed functions of both a display device and a read-only memory storing multiple characters and fonts. The similar Typotron was a U.S. registered trademark (23 November 1953) of Hughes Aircraft Corporation for its type of shaped electron beam storage tube with a direct-view bistable storage screen.

The Charactron CRT used an electron beam to flood a specially patterned perforated anode that contained the stencil patterns for each of the characters that it could form. The first deflection positioning of the electron beam steered the beam to pass through one of the (typically 64 or 116) characters and symbols that could be formed. The beam, which then had the cross-section of the desired character, was re-centered along the axis of the tube and deflected to the desired position of the screen for display. Alternately, as in the accompanying image, the entire matrix was filled with the electron beam then deflected through a selection aperture to isolate one character.

The term Charactron is sometimes mistakenly applied to another type of CRT properly called a monoscope which generates an electrical signal by scanning an electron beam of uniform cross section across a printed pattern on an internal target electrode.


There were two basic types/uses of Charactrons:

  1. Direct view — where the intended user watched the face of the tube. An example was the 19-inch-diameter (480 mm) tube of the AN/FSQ-7 SAGE Semi Automatic Ground Environment computer console.
  2. Photographic output — where the display screen was photographed by a microfilm camera for recording of computer generated data. The Stromberg-Carlson SC-4000 series system was a typical use of the 5-inch-diameter (130 mm) tube

The technical expertise, and trademarks, for the Charactron ultimately passed to Stromberg-Carlson, General Dynamics, Stromberg DatagraphiX, Anacomp, and finally Lexel Imaging Systems.


See also[edit]


External links[edit]

Original courtesy of Wikipedia: http://en.wikipedia.org/wiki/Charactron — Please support Wikipedia.
This page uses Creative Commons Licensed content from Wikipedia. A portion of the proceeds from advertising on Digplanet goes to supporting Wikipedia.
19 videos foundNext > 

Testing t3h charactron / Тест характрона

A computer model of mechanical steam-powered charactron (a device able to display symbols using a stencil) created with Evaldraw app. This is how a ...


Charactron Charactron is an electron-beam instrument used in data display devices for reproduction of letters, figures, topographic and other symbols.

Ceramic Components in Production of Capacitors

Ceramic Components in Production of Capacitors Irrespective of their manufacturers, the ceramic components are in the forefront of the miniaturization tendency ...

CENTER-304 Thermometer

CENTER-304 ThermometerTemperature measurement is one of the most common tasks. But there are situations where an ordinary thermometer is insufficient.

CERATOM Technology

CERATOM TechnologyPeltier module coolers and generators are widespread solutions for cooling plants and electric voltage generators without mechanical ...

Мой первый механический телевизор

Ну вот, сделал :) Синхронизация ручная, те пальцем. Йожин с бажин!

Nov 19, 2011 - Пахомы на крыше


Chain lubricant spray CRC CHAIN LUBE

Cathode ray tube

The cathode ray tube is a vacuum tube containing one or more electron guns and a fluorescent screen used to view images. It has a means to accelerate and ...

The pyrographic device BS 30WBM

19 videos foundNext > 

We're sorry, but there's no news about "Charactron" right now.


Oops, we seem to be having trouble contacting Twitter

Support Wikipedia

A portion of the proceeds from advertising on Digplanet goes to supporting Wikipedia. Please add your support for Wikipedia!

Searchlight Group

Digplanet also receives support from Searchlight Group. Visit Searchlight