Vacuum tubes were discovered to have a number of flaws, for - Ответ на вопрос по ДИЯ №933339
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Вопрос
Vacuum tubes were discovered to have a number of flaws, for example … (choose 3 correct answers)- they produced very little of heat
- they took 1 to 2 minutes to warm up
- two similar tubes had varying output and operational properties
- they required high power supply voltages of 300 volts dc and higher
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