TESLACOIL
| Date | Clue |
|---|---|
| 2023-01-17 | Electrical transformer named for its creator |
| 2017-06-05 | Early radio transmitter |
| 2016-07-09 | It may cause sparks to fly |
| 2014-11-28 | Electrical transformer |
| 2011-02-18 | Early radio transmitter |
| Date | Clue |
|---|---|
| 2023-01-17 | Electrical transformer named for its creator |
| 2017-06-05 | Early radio transmitter |
| 2016-07-09 | It may cause sparks to fly |
| 2014-11-28 | Electrical transformer |
| 2011-02-18 | Early radio transmitter |