This is a small Natural Bird Sound Generator Circuit using Transistors, as this circuit uses two BC547 transistors, some resistors, capacitor and a speaker.
In addition, the circuit is simple for beginners and works on low voltage like 3V to 9V and is also good for toys, hobby projects, alarms and for school projects.
Circuit Working:
Parts List:
| Components | Values | Quantity |
|---|---|---|
| Resistors | 100k | 2 |
| 470Ω, 1k | 1 each | |
| Capacitors | Electrolytic 470uF 25V, 330uF 25V | 1 each |
| Ceramic 0.1uF | 1 | |
| Semiconductors | Transistors BC547, BC557 | 1 each |
| Speaker 8 ohm small | 1 | |
| Push button Switch | 1 | |
| Battery 9V | 1 |
To begin with, this circuit uses two transistors BC547 and BC557 and it uses 4 resistors to control sound; also it uses two big capacitors 330uF and 470uF and one small 0.1uF.
Then, connect a small 8-ohm speaker to produce the bird sound and connect a push button to the battery power; next, connect all the components with wires as shown in the circuit diagram above.
After that, Q1 BC547 make fast sound and Q2 BC557 make slow up-down effect.
How to Build:
To build a Natural Bird Sound Generator Circuit using Transistors follow the below steps:
- First, collect all parts same like circuit diagram above.
- Next, join BC547 Q1 collector to BC557 Q2 base, connect Q1 base to one side of R1, R2 and R4 and other side of R1, R2, R3go to positive side of C2 and C3.
- After that, join Q1 emitter to positive of C1, C2, R1 and one side of 8 ohm speaker.
- Now, Q2 collector to go other side of 8 ohm speaker and one side of C3.
- Also, join Q2 emitter to one side of switch and negative of C1 and then connect 9V battery positive to switch and battery negative to C1 negative.
Conclusion:
To conclude, this simple, low cost Natural Bird Sound Generator Circuit uses only two common transistors and a few components.
Also, the circuit works on small battery power and is good for electronics learning and fun projects; further if required, we can change resistor and capacitor values to make different bird sounds.