Geezer Geek ping.
FReepmail me if you want on or off this list.
Posted on 11/19/2004 7:29:06 AM PST by sionnsar
from the vacuums-don't-suck dept.
williamw83 writes "Today, November 16, 2004 has been declared as the centennial of the birth of modern electronics by the American Vacuum Society. As the AIP Physics News Update reports, this marks 'British scientist John Ambrose Fleming's 1904 invention of the first practical electronic device. Known as the thermionic diode, this first simple vacuum tube, containing only two electrodes, could be used to convert an alternating current (AC) to a direct current (DC).' Today's celebration takes place as part of the AVS's 51st Annual Symposium & Exhibition
in Anaheim, CA. Being a guitar player myself, I've come to truly appreciate the technology of the vacuum tube every time I crank up my amplifier. This 100-year-old grandfather of electronics, used by musicians and audiophiles across the world, has proven that profound advances in technology do not always render old technologies obsolete."
That's ok, I just figured that one of your tubes blew out.
So when was the triod invented, and when were the first practical devices marketed?
Ah yes. I'm reading this on one...
engineering geek ping!
Given where I was (hotel meeting room in Key West) I guess I can't say the heater failed...
Thanks for the ping.
"So when was the triod invented, and when were the first practical devices marketed?"
The triode was invented in 1906. Not sure who was the first to implement it into a system design.
While where at it, the tetrode was invented in 1926, and the pentode in 1930. As far as the "beam power tube" a variant of the pentode, don't ask me, I don't know.
You were just warming up, right?
LOL! You got it!
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