| Answer | Crossword Clue |
|---|---|
| CATHODERAY | TV tube emission |
| CATHODERAY | Crookes tube emission |
| dynodes | electrode for the emission of secondary electrons in a vacuum tube |
| dynode | electrode for the emission of secondary electrons in a vacuum tube |
| dynodes | an electrode in an electron tube that functions to produce secondary emission of electrons |
| dynode | an electrode in an electron tube that functions to produce secondary emission of electrons |
