Inductive electronic doorbell 1


Posted on Feb 5, 2014

The inductive electronic doorbell circuit is composed of the inductive electronic switch and music generator circuit, and it is shown in Figure 3-115. Inductive electronic switch circuit is composed of the inductive electrode A, transistor Vl-V4 and the resistor R1, potentiometer RP components. Music generator circuit by the music integrated circuit IC, resi..


Inductive electronic doorbell 1
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