| Answer | Crossword Clue |
|---|---|
| MACARONI | Tubes with cheese |
| LAB | Room with test tubes |
| PTBOAT | Small craft with launching tubes |
| TIN | Salvage this with toothpaste tubes. |
| HOOKAHS | Pipes with long, flexible tubes |
| ENIAC | Computer with 18,000 vacuum tubes |
| ENIAC | Giant with 17,468 vacuum tubes |
