Schematic DIY KitStethoscope Pulse and make Herztoene audiable
A stethoscope is probably for the wichtigtse instrument with a doctor. Classically, it consists of a sensor whose signal with hoses to the ear of the physician is run. But even by electronic means can be sounds coming from inside the body make audiable, with appropriate filters, we then further process the signal evaluation circuits is of course also electronically.

Here you will find Schematic Circuit Diagram for DIY and further information on Stethoscope
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Medical Stehoskop with Operationsverstaerkern
Electronic Stehoskop

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