Related terms:
telefunken
cathode ray tube
thermionic valve
qrp operation
report on the edvac
ac or dc
cathode resistor
first transistor
charles francis jenkins
john von
Wikipedia sources:
Vacuum tube
History of computing hardware
Hot cathode
Transistor
Cathode ray
Venipuncture
ENIAC
Crystal radio
AC/DC (electricity)
Mobile radio
Sylvania Electric Products
12AX7
Telefunken
Mikoyan-Gurevich MiG-25
History of television
Fifth generation computer
Grid
Pentode
Radar in World War II
Amateur radio homebrew
Traveling-wave tube
Z3 (computer)
Instrument amplifier
Context for words:
vacuum
tubes
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