| Wah-wah effect |
Wah-wah audio effect. |
2.85 |
2,474 |
| Two tone siren at 1.5V |
Nice little siren operating at 1.5V. |
2.89 |
2,406 |
| LM3886 single chip 68W amplifier |
LM3886 single chip 68w amplifier. |
2.86 |
2,354 |
| Mini megaphone/amplifier with 2 transistors |
Mini megaphone/amplifier with 2 transistors. |
2.91 |
2,343 |
| Siren at 3V |
Nice little siren operating at 3V. |
2.88 |
2,328 |
| Two tone siren v3 |
Two tone siren using two NE555 timer ICs. |
2.97 |
2,286 |
| Electronic whistle |
Electronic whistle using any OpAmp. |
2.87 |
2,214 |
| Microphone amplifier with parabolic plate |
Audio microphone amplifier with parabolic plate. |
2.92 |
2,211 |
| Small electronic siren v2 |
Small electronic siren with NE562. |
2.89 |
2,156 |
| Laser diode audio transmitter |
Laser diode audio transmitter with NE555. |
2.95 |
2,153 |
| Stereo coder - multiplexer |
This stereo coder is suitable for FM transmitters if you wish to transmitt stereo audio. |
2.90 |
2,128 |
| Electronic stethoscope |
Schematics for electronic stethoscope. |
2.83 |
2,031 |
| Simple FSK modulator |
Simple FSK modulator. |
2.92 |
1,871 |
| Very sensitive audio amplifier |
Extremely sensitive audio amplifier at 1.5V. |
2.93 |
1,790 |
| Weak audio signal amplifier |
Amplifier of a weaker signal. |
2.86 |
1,729 |
