| 41. | The vacuum tubes indicated in Hewlett's patent were pentodes rather than the triodes shown here.
|
| 42. | However, tetrodes are successfully used into the VHF range and triodes into the low GHz range.
|
| 43. | The grids of the triodes are arranged so that only one digit is illuminated at a time.
|
| 44. | After the war, Shockley decided to attempt the building of a triode-like semiconductor device.
|
| 45. | A "'triode "'is an electronic radio transmitters and industrial RF heating devices.
|
| 46. | A triode has three electrodes : the anode, cathode, and one grid, and so on.
|
| 47. | Thus a pentagrid radio could easily be converted to a triode-hexode without any other circuit modifications.
|
| 48. | He was the first to give a correct explanation of how De Forest's triode tube worked.
|
| 49. | This circuit design has been used at 1296 MHz using disk seal triode valves such as the 2C39A.
|
| 50. | He started working on triodes and invented ( with his director Gilles Holst ) the penthode in 1926.
|
