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Best Buy Spy Ear, mechanical, electrical, electronics, robotics and science projects, kits and ideas for electronics engineering and mini projects
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Spy Ear This kit Spy Ear light-weight gadget produces an adjustable gain on sounds picked up from the built-in high-sensitivity condenser microphone. So you can hear what you have been missing. A small signal amplifier is built around transistor BC547 and the related components amplify the sound signals picked up by the condenser microphone (MIC). To Know more, please visit – www. Kitsguru.com
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