Скачать или смотреть DIY Bird Sound Generator Circuit | Easy Electronic Doorbell (Step by Step)

DIY Bird Sound Generator Circuit | Easy Electronic Doorbell (Step by Step)

In this video, I will show you step-by-step how to build a simple and low-cost bird chirping sound generator circuit using basic electronic components like BC547 transistors, resistors, capacitors and speaker. This DIY electronics project is perfect for beginners, students, and hobbyists who want to create a creative doorbell circuit at home.

⚙️ 𝗛𝗼𝘄 𝗖𝗶𝗿𝗰𝘂𝗶𝘁 𝗪𝗼𝗿𝗸𝘀:
When you press the button the circuit is powered from a 9V source. The RC timing network (470µF C1, 0.1µF C2 and R1/R2 plus the 100k bias resistors) causes the transistors to switch in a repeating pattern; Q1 (BC547) and Q2 (BC557) form the active stages that amplify and invert the waveform. Thbire speaker sees the resulting pulsed waveform, while the big 3300µF electrolytic and resistor network produce a decaying envelope so each pulse sounds like a natural chirp. Use the pot to tune pitch/tone and the resistor values to change chirp rate and character.

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