| Elektro-shocker with NE555 10-15kV |
Electro-shocker 10-15kV with NE555 at 12V. |
2.93 |
10,602 |
| Event counter |
Event counter with 7 segment display. |
2.89 |
2,204 |
| Frequency meter |
Frequency meter using PC. |
2.91 |
3,844 |
| GSM phone ring detection |
This device will blink LED just before GSM phone will ring. |
2.92 |
3,609 |
| GSM sniffer |
Locate a GSM phone. |
2.94 |
36,880 |
| Geiger counter v1 |
Beta and Gamma ray detector with a neon-tube. |
2.87 |
1,955 |
| Geiger counter v2 |
Geiger coutner with GM tube. |
2.89 |
1,125 |
| Geiger counter v3 |
Very good Geiger counter. It uses GM tube. |
2.94 |
1,577 |
| Generation of square wave signals |
Generation of square wave signals with NE555 (blinking an LED) - 4 schematics. |
2.90 |
1,424 |
| HALO card emulator |
HALO card emulator - HR. |
2.93 |
2,783 |
| Heads or tails v1 |
Electronic heads or tails game. |
2.95 |
1,083 |
| Heads or tails v2 |
Heads or tails with NE555. |
2.91 |
497 |
| Heat detector using NE555 and diode |
Heat detector using NE555 and a diode. |
2.90 |
3,582 |
| Infrared switch |
IR led and diode switch. |
2.94 |
3,492 |
| Inteligent switch |
Inteligent switch circuit. |
2.88 |
2,999 |
