Royal Air Force Greatworth

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Thermionic technology?

Posted by Martin on June 15, 2011 at 12:45 PM

Surprisingly enough, our days as techies in the transmitter hall, be they with the SWB 8's and 11's, or HS31's and later gear, haven't  been left behind. The high power transmitters of today still use valves, yep thermionics still rule the air waves, check out this site for a feast of high power RF valve gear, but don't look at the prices!http://nrgkits.shopfactory.com/workshop/tetrode.htm

Martin

Categories: General topics

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1 Comment

Reply Rob McTait
07:07 PM on June 17, 2011 
Yes, true that valves(Toobs), are still very much in use today. I for one use them in my two amplifiers, Collins 30L-1 1960's vintage and a Swan 1500Z. I also have two working Swan 350 transceivers using valves of which are still in production, especially the "Svetlana" brand and new "old stock". I have some 811A's which were made in the 50's and look brand new.
Rob G2BKZ

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