| Answer | Crossword Clue |
|---|---|
| TRIODE | Certain tube |
| TRIODE | Certain electron tube |
| DIODE | Certain vacuum tube |
| NEON | Certain tube filler |
| DIODE | Certain electron tube |
| TRIODE | Certain vacuum tube |
| Answer | Crossword Clue |
|---|---|
| TRIODE | Certain tube |
| TRIODE | Certain electron tube |
| DIODE | Certain vacuum tube |
| NEON | Certain tube filler |
| DIODE | Certain electron tube |
| TRIODE | Certain vacuum tube |
Crossword
a puzzle consisting of a grid of squares and blanks into which words crossing vertically and horizontally are written according to clues.