The thermionic website
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When time permits I add to this site, please check back again. Development and failed valve projects. About, history, links. 7 MHz VXO based CW transmitter.
Added NR55 to the VR109 page. Posted on Monday 27th July, 2015. Added an NR55 triode to the VR109 page. This valve is unusual in that there is evidence it had a sprayed shield which has been almost completely removed. It carries the NR55 marking and nothing else on the glass, and the serial number 9505. New exhibits added Monday 27th July, 2015.
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For valve tube enthusiasts or interested parties with a Amateur Ham radio biasCONTENT
This domain thermionic.org has the following in the web page, "Devoted to electronic valves also known as tubes, valve radio circuits and equipment." Our analyzers observed that the webpage also stated " This site is being built gradually, please check back again soon." The Website also stated " This picture shows an 813 based Hartley oscillator transmitter being tested with a makeshift power supply. This transmitter was intended for the 160m 1. You can read more about this project and some others on my projects page." The website's header had hartley transmitter as the most important keyword. It was followed by regenerative, genny, and sansui which isn't as highly ranked as hartley transmitter. The next words the site used was 1000A. 12AT7 was also included but might not be understood by search engines.MORE WEB SITES
Thermionic diodes are thermionic valve devices. Saturday, February 2, 2008. Thermionic diodes are thermionic valve devices. Although the crystal diode was popularized before the thermionic diode, thermionic and solid state diodes developed in parallel. The principle of operation of thermionic. Diodes was discovered by Frederick Guthrie. The principle of operation of crystal diodes was discovered in 1874 by the German scientist, Karl Ferdinand Braun. And he was awarded a patent in 1883.
Thermion has become recognized as. The most reliable high production metalizing systems in the world. Thermion has become recognized as. The most reliable high production metalizing systems in the world. Thermal Arc Spray Systems and Coatings. Thermion is the manufacturer of Twin Wire Arc Spray Equipment.
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