| Answer | Crossword Clue |
|---|---|
| MASER | Amplifying device |
| LASER | Light amplifying device |
| MIKE | Voice-amplifying device |
| RESONATOR | Device for amplifying sound. |
| MASER | Device amplifying electromagnetic waves |
| FEEDBACK | Amplifying problem. |
| MASER | Amplifying devices |
| TRIODE | Amplifying tube |
| LASERS | Devices amplifying light waves |
| MIC | Speaker's amplifying aid, briefly |
| LASERS | Scientific marvels amplifying light. |
| MASERS | Devices for amplifying electromagnetic waves |
