[GreenKeys] the way it used to be...
Jack Rubin
jack.rubin at ameritech.net
Sat Feb 26 22:39:04 EST 2005
Found a great book today in the dollar box at our first "Spring" hamfest -
the title is "Principles of Radio-Telegraphy", by Cyril Jansky, published in
1919.
I knew I was in for some heavy sledding when the first chapter started out
with a discussion of the properties of the Ether - including elasticity and
inertia - with particular emphasis on the role of these properties as they
relate to electromagnetic phenomena. From there, after the appropriate
chapters on magnetism, electricity, etc. he moves on to a discussion of
spark-gap oscillators and radio transmitters. The last chapter introduces
vacuum tubes and their use in radiotelegraphy - note that the book was
written just twelve years after DeForest's 1906 presentation of the Audion
tube.
So for you guys who have decided that Model 28s are too new and that maybe
even the 15/19s are kind of effete, here's another level to aspire to!
Jack
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