This is a small Natural Bird Sound Generator Circuit using Transistors.
The circuit uses two BC547 transistors, some resistors, capacitor and a speaker.
It is simple for beginners and works on low voltage like 3V to 9V.
Circuit is good for toys, hobby projects, alarms and for school projects.
Circuit Working:
Parts List:
| Item | Value | 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 |
This circuit uses two transistors BC547 and BC557.
It use 4 resistors to control sound.
It uses two big capacitors 330uF and 470uF and one small 0.1uF.
A small 8-ohm speaker make the bird sound.
A push button connect battery power.
Wires connect all parts same like in circuit diagram above.
BC547 make fast sound.
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.
- Join BC547 Q1 collector to BC557 Q2 base.
- Join Q1 base to one side of R1, R2 and R4.
- Join other side of R1, R2, R3 to positive side of C2 and C3.
- Join Q1 emitter to positive of C1, C2, R1 and one side of 8 ohm speaker.
- Join Q2 collector to other side of 8 ohm speaker and one side of C3.
- Join Q2 emitter to one side of switch and negative of C1.
- Join 9V battery positive to switch and battery negative to C1 negative.
Conclusion:
This is simple low cost Natural Bird Sound Generator Circuit using Transistors.
It uses only two common transistors and few parts.
Works on small battery power.
Good for electronics learning and fun projects.
We can change resistor and capacitor values to make different bird sounds.