Spy Ear (Audio Amplifier)
- Product SKU: LGKT009
Need Volume Discounts? Deals are specially designed for you. Click here
Need help with your idea. Provide us more details Click here
- Order within
DescriptionAudio 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.
- Dimensions (cm) L x W x H : 20 x 15 x 5
- Weight (gm): 200