| 41. | It can get sucked down a vacuum tube of hysteria.
|
| 42. | DYSEAC used 900 vacuum tubes and 24, 500 crystal diodes.
|
| 43. | For removal of gas in vacuum tubes, getters are used.
|
| 44. | Most Devyatkov's scientific papers apply to a microwave vacuum tubes.
|
| 45. | While at UCL, Fleming invented the vacuum tube in 1904.
|
| 46. | The vacuum tube became the de facto standard by 1936.
|
| 47. | Historically, it was used as a getter for vacuum tubes.
|
| 48. | Barium has some use in vacuum tubes to remove gases,
|
| 49. | How vacuum tubes worked was not understood at the time.
|
| 50. | In 1901, Reginald Fessenden demonstrated a triode vacuum tube oscillator.
|
