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LM386 200 Gain Audio Amplifier Module

LM386 200 Gain Audio Amplifier Module

31805-large.jpg  360-3D.jpg    California Proposition 65 Warning
Stock No: 31805 MI
 Review Average:  
 Number of Reviews: 3
 View ReviewsReview this item
$3.95


Availibilty: In Stock   Units: 21
Quantity 


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 Detailed Description
We do not include any printed materials of the following "Data Sheets". You will need to print from the following Document(s).
Arduino Sensor 200X Amplifier Module
Linear audio amplifier designed around the LM386 IC with Gain set at 200. Adjustable resistor for Input level control. Capacitor coupled Output. Perfect for boosting weak signals from audio sources, microphones, DC/AC sensors, etc.
POWER: 5 –12VDC
Current: <10mA @ VCC = 5VDC
Input Signal Range: 0-0.4V
OutputRange P/P : ~ 80% of Vcc
4 Pin .1in Pitch Header for Power & Input
Output Terminal Strip
LED for Power indication.
L: 1-5/8” W: 9/16” H: 5/8” WT: .03

View PDF Data Sheet

California Proposition 65 Warning WARNING: This product can expose you to chemicals including Nickel which is known to the State of California to cause cancer and which is known to the State of California to cause birth defects and/or other reproductive harm. For more information, go to www.P65Warnings.ca.gov


 Product ReviewsClick here to review this item
Useful compact amplifier, though with a slight stability problem
I tested two boards, and found that if the amplifier is powered from 11V or more, with the input grounded, and with the pot set near center, there will be a slight oscillation. This is due to sensitive feedback components C1 and R1 being routed in a large loop around the noisy output snubber C4 and R2. It is also likely the reason why they used 100 ohms for snubber R2, instead of 10 ohms recommended by the LM386 datasheet. I fixed this by lifting IC pins 1 and 8 off the board, gluing a 10uF X7R on top of the IC, and then wiring it to pins 1 and 8. H.Bustani, NV
 
Pipe and cable locator amp
I am using this module to replace one that I was building myself including the pcb board using an LM386 IC. This module works better than the one I was using before and greatly reduced my manufacturing cost. Great product.
- Dave Freeman, LA
 
amplifies sound
This module does a great job at amplifying all sounds
 




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