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Product Details
ELECTRONIC STETHOSCOPE (soldering kit)
SKU: K-5099
Overview
- Hear through walls!
- Remember when you put a glass to the wall?
Ideal for listening to very soft sounds normally below the threshold of human hearing. Board mounted condenser microphone element receives sounds, which is amplified through a very high gain amplifier circuit. Gain is adjusted by the potentiometer.
- Teaches basics of transmitters.
- Headphones included.
- Remember for educational purposes!
- Requires a “9” volt battery
BT-9009 “9” volt battery..............49¢
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