| Wah-wah effect |
Wah-wah audio effect. |
2.84 |
2,469 |
| Two tone siren at 1.5V |
Nice little siren operating at 1.5V. |
2.88 |
2,402 |
| LM3886 single chip 68W amplifier |
LM3886 single chip 68w amplifier. |
2.87 |
2,348 |
| Mini megaphone/amplifier with 2 transistors |
Mini megaphone/amplifier with 2 transistors. |
2.88 |
2,338 |
| Siren at 3V |
Nice little siren operating at 3V. |
2.88 |
2,322 |
| Two tone siren v3 |
Two tone siren using two NE555 timer ICs. |
2.98 |
2,274 |
| Electronic whistle |
Electronic whistle using any OpAmp. |
2.88 |
2,210 |
| Microphone amplifier with parabolic plate |
Audio microphone amplifier with parabolic plate. |
2.91 |
2,207 |
| Small electronic siren v2 |
Small electronic siren with NE562. |
2.89 |
2,149 |
| Laser diode audio transmitter |
Laser diode audio transmitter with NE555. |
2.94 |
2,144 |
| Stereo coder - multiplexer |
This stereo coder is suitable for FM transmitters if you wish to transmitt stereo audio. |
2.90 |
2,124 |
| Electronic stethoscope |
Schematics for electronic stethoscope. |
2.88 |
2,028 |
| Simple FSK modulator |
Simple FSK modulator. |
2.96 |
1,869 |
| Very sensitive audio amplifier |
Extremely sensitive audio amplifier at 1.5V. |
2.90 |
1,778 |
| Megaphone at 9V |
Amplifier for megaphone operating at 9V. |
2.90 |
1,723 |
