WT-12
| Manufacturer | Korg |
| Function | Instrument Tuner |
| Produced | 1975 |
| Country | Japan |
| Form Factor | Portable |
| Signal Path | Analog Hardware |
| Notes | World's first hand-held electronic tuner |
| Manufacturer | Korg |
| Function | Instrument Tuner |
| Produced | 1975 |
| Country | Japan |
| Form Factor | Portable |
| Signal Path | Analog Hardware |
| Notes | World's first hand-held electronic tuner |