Look for anything written by Dave Gingery. That will be about as close as you'll come to the book you're looking for.
I recall one of Robert Heinlein's books (Was it "Rocket Ship Gallileo"?) where our heroes are stranded on the moon and need to build a transmitter to signal for help. They need to build tubes. Vacuum isn't a problem. In fact, they don't even bother with (glass) envelopes, but just build the tubes far enough apart and/or pile rocks between them.
"they don't even bother with (glass) envelopes, but just build the tubes far enough apart and/or pile rocks between them."
#blink# The distance between tubes is so that the emissions from one cathode won't interfere with the neighbouring tubes? (Inverse square law and all that...) I was thinking of doing this someplace with atmosphere, but yeah, that's a cool trick for the moon.
I think some of the farspace (Pioneer? V-ger?) probes had their power amplifier tubes made in a like manner. The envelope was there for the meachnical protection, stability, and mounting, but there was a hole left for the hard vacuum of translunar space to bring the tube to unearthly level of performance.
(no subject)
I recall one of Robert Heinlein's books (Was it "Rocket Ship Gallileo"?) where our heroes are stranded on the moon and need to build a transmitter to signal for help.
They need to build tubes. Vacuum isn't a problem. In fact, they don't even bother
with (glass) envelopes, but just build the tubes far enough apart and/or pile rocks between them.
(no subject)
Will do. Thanks for the suggestion.
"they don't even bother with (glass) envelopes, but just build the tubes far enough apart and/or pile rocks between them."
#blink# The distance between tubes is so that the emissions from one cathode won't interfere with the neighbouring tubes? (Inverse square law and all that...) I was thinking of doing this someplace with atmosphere, but yeah, that's a cool trick for the moon.
(no subject)