| Query | User |
|---|---|
| antennas | entered by user 9429072 |
| barometers | entered by user 8616038 |
| c b frequency | entered by user 7008306 |
| capacitor discharge circuits | entered by user 2402791 |
| crystal radio | entered by user 5639079 |
| foam cutter | entered by user 639939 |
| foam cutter | entered by user 11470462 |
| fold back power supply | entered by user 5900389 |
| homemade barometer | entered by user 3618380 |
| hot wire foam cutters | entered by user 204649 |
| how to build a telephone ringer | entered by user 2738565 |
| how to make an am transmitter | entered by user 3463490 |
| lightning detectors | entered by user 884905 |
| mica in the form of fiberglass | entered by user 12093813 |
| moisture monitor | entered by user 7195293 |
| neon zener | entered by user 6856365 |
| removing latex paint | entered by user 6031262 |
| transistor checker | entered by user 9022276 |
| transmitters radio am | entered by user 3678255 |