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Spy Ear (Audio Amplifier)

Available:In Stock

Product SKU: LGKT009

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₹ 449 ~~₹ 699~~

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Highlights

Product Code: LGKT009
Technical Support: upto 30mins Video support
Handmade
Make in India

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DO IT YOURSELF KIT

READY TO USE KIT

Details

Unsoldered PCB and all components to be soldered on PCB.
Includes all ICs, Connecting wires and Condenser MIC.
Documentation: PCB Specifications Component list, and Circuit diagram.
Power Supply: No battery included, Includes 12 Volt DC adapter with the kit.
Video tutorial is available on YouTube.

One set of the readymade in working condition.
Includes all ICs, Connecting wires and Condenser MIC.
Documentation: PCB Specifications Component list and Circuit diagram.
Power Supply: No battery included, Includes 12 Volt DC adapter with the kit.
Video tutorial is available on YouTube.

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Specification

Description

Audio Amplifier Binoculars can improve your eyesight and this personal sound enhancer circuit can be used for listening. 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 parts amplify the sound signals picked up by the condenser microphone (MIC). The amplified signal from the preamplifier stage is fed to input LM386N (IC) through capacitor and volume control. A decoupling network comprising resistor and capacitor provides the preamplifier block with a clean supply voltage. The LM386N power amplifier can safely drive a standard 32-ohm monophonic headphone/earphone.

In this Kit Spy Ear Audio Amplifier, IC LM386N is designed for operation with power supplies in the 4-15V DC range. It is housed in a standard 8-pin DIP package, consumes a very small quiescent current, and is ideal for battery-powered portable applications.