George, K8VU, alerted me to this wonderful blog that presents interesting bits of correspondence: http://www.lettersofnote.com/ This telegram from the Secretary of the Navy caught my eye. There is also a letter from Galileo, complete with diagrams of Jupiter's moons (his diagrams look just the ones I draw today). Also, check out the letter from Oppenheimer recommending Richard Feynman for a job at UCAL Berkeley: Feynman is described as being "a second Dirac, only this time human." (Poor Dirac. He was once having dinner with a close friend. In an effort make conversation, the friend asked, "Have you been to the threater lately?" Long pause, then the response: "Why do you ask?" )
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Re: National NC-270
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Quote from: n8fvj on *Today* at 05:46:24 PM
The 6GM6 arrived and has same gain as the 6BZ6. I do not get it.
Gain of a tube is dependent on the gm or mu, al...
1 hour ago
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