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Electronic bird sounds

2018-01-24 13:26  
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Operation of the circuit.When pressed, switch S1. Circuits will work out a sound of birds.The R1, R2, C3 forward control transistor Q1 to work intermittently.
C4 determines the latency time, for each voice singing. In addition, there C2 as the feedback signal.If the C2 is much value,will make the bass sound. However if C2 is less,will make the treble sound. When Q1 bias, will has the current flowing through the primary winding of the transformer T1. Resulting in the induction coil secondary signal to drive speakers.

Electronic bird sounds

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