Electronic Stethoscope Circuit
Using 1 BC548 Transistor ,and several passive components , and Buzzer 1 also 4,5 V Battery . Source Elektor Electronic
The modern digital stethoscope as The 3M Littmann CORE Digital Stethoscope features the outstanding acoustics, comfort and quality of a Littmann cardiology-grade stethoscope enhanced by powerful digital technology. Features like up to 40x amplification* and active noise cancellation can help you auscultate with greater confidence. The Littmann CORE Digital Stethoscope connects with Eko software on a smart device** to visualize, record and share data.
*40X amplification based on comparison of analog versus electronically assisted amplified listening with maximum volume at the peak frequency(125 Hz). Check it Out !
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