This "machine gun" circuit generates a sound that mimics the sound of a toy machine gun. It is based around a 555 timer IC in a feedback loop.
Check out this demo video to hear the circuit in action.
The Circuit
Parts List
| Reference | Value |
|---|---|
| Battery | 9V |
| C1 | 10nF |
| C2 | 10µF |
| C3 | 10µF |
| C4 | 100µF |
| Q1 | BC557 |
| R1 | 100k |
| R2 | 47k |
| Speaker | 8-ohm |
| U1 | 555 Timer |
The Layout
