Eagle schematics for drawdio
| Part | Value | Notes |
|---|---|---|
| Q1 | NE555 | -- |
| R1 | 270K | -- |
| R2 | 10K | -- |
| R3 | 100ohm | -- |
| C1 | 680pF | Ceramic, 5mm |
| C2 | 0.1µF | Ceramic, 2.5mm |
| C3 | 100µF | Electrolitic, 2.5mm |
| T1 | 2907A | PNP Switching transistor |
I used 12v "A23" battery, but they suck! I'd rather have a cord and a 9v battery.