General Electric
Tech's Filing Cabinet Miscellaneous General Electric RCA

The GE "Technical Information Series" of reports were curated by General Electric's Corporate Research and Development group in Schenectady, New York (the home base of GE). These reports were written by the various departments of GE and were distributed widely throughout the company. As mentioned in the Confidentiality link to the left, there were four levels of security, with only Level 1 being open to the public. Also included here are numbered "Technical Information Reports" which were more informally distributed. All reports here are listed in chronological order.

The reports listed here are only a small fraction of those in the Von Campbell collection. More will be added as they are scanned.

Knoerzer 1951 Removing Sticking Potential by Hot Tungsten Wire 51-E-655 - A translation of a German article on how a glowing tungsten wire can remove the "sticking potential" of a fluorescent screen. Sketchy English and some of the original drawings seem to be missing.

GE McLeland 1954 Pulse Aging of Oxide-Coated Cathodes 54E652 - Activating a CRT cathode by conventional DC method takes 45 minutes. By applying high-intensity pulses, this is shortened ot only a few minutes. Unknown whether this was adopted.

GE Devlin 1955 CRT Cathode Temperature Measurements - Uncertainty of picture tube cathode temeperature prompted experiments where a tiny thermocouple was welded to cathodes and tested. It turned out that GE and Sylvania cathodes were running too hot by 25 to 50°C.

GE Whetten & Laponsky 1956 Backscattered Electrons in the PA Color TV Tube 56-RL-1644 - The GE Research Laboratory finds a way to reduce backscattered electrons, which would improve the (never-released) Post-Acceleration color TV tube. Take a look at the distribution list (in the back). This minor research report on a in-house experimental color TV tube was distributed to every damn part of General Electric, from the "Large Steam Turbine-Generator Department" to the "Vacuum Cleaner Department". I guess these researchers really needed to show their worth.

Griessel 1957 Applications of the Mass Spectrometer to Tube Development 57ETI-1 - Using a mass spectrometer to analyze vacuum impurities. This is much easier and cheaper to do today.

Mayer 1957 Cathode Ray Tube European Technical Survey R57-ETC-3 - A detailed European trip report covering CRT technology. Note the openness of the hosts to the GE personnel, only a few of which had official "agreements" with GE.

Findeisen 1958 Numerical methods in Cathode Ray Tube Analysis R-58ETC-1 - Using finite- element analysis to design electron guns. This was using an IBM 650 computer!

GE Coppola 1958 The Application of a Limiting Aperture to Cathode Spraying R58ETC-2 - The use of a limiting aperture to ensure only the center of a cathode spray gets deposited, leading to a smoother cathode. Full manufacturing drawings are provided.

GE Coppola 1959 Relationship of Cathode Life to Cathode Temperature in CRTs - Experimental tests to determine best cathode temperature for longest life in consumer picture tubes. 750° to 800° C is best.

Good 1959 A TV Simulation of the Land Two-Color System - Experimental verification of Dr. Land's (founder of Polaroid) two-color reproduction system. This system fools our eyes into seeing more colors. Mixed results. This research was part of the beginning of the Talaria project.

Russel 1960 R-60ETR-1 Emittance of Tube Materials - Measurements of the total IR emittance of various materials used in vacuum tubes, including "converted aluminum-clad iron". Good stuff here.

Coppola 196- Cathode Life in CRTs - Experiments to show the relationship between cathode temperature and gas to cathode lifetime. The results are as expected: Don't run the cathode too hot, and gas is bad.

Juhlin 1962 Computer Program for Lenticular Lens Coordinates 176 - Computer program to aid electron lens design. It ran on an IBM 1620, running an early version of Fortran.

Levinson & Philipp 1975 A-C Properties of Metal Oxide Varistors - The electrical properties of a MOV surge suppressor when it isn't suppressing.

Hopkins 1980 Protective Level Comparisons of Voltage Transient Suppressors 120V AC Type 79CRD223 - A comparison of transient suppressor devices.

Liebhafsky 1981 Energy Conversion Anyone & The Story of Mercury-Steam 81CRD281 - Two chapters of a history of power generation. Note that page 29 was a blank in the original.