MP3 mono amplifier kit

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MP3 mono audio amplifier kit (2115)

We've managed to lower the price of this kit. With our bulk buy discount this kit can be purchased for as little as £1.79 per kit if you order more than 300.

This audio amplifier kit can be used with any personal stereo equipment, including MP3 players. It uses a TBA820M audio amplifier IC which can output 1.6W of power. The kit is supplied with a PP3 battery clip and can run off any voltage from 3 to 16 volts. Now supplied with pre-built jack cable.

This kit includes:

  • 1 x TBA820M audio amplifier IC
  • 1 x 8 pin IC holder
  • 1 x 1ohm resistor
  • 1 x 100ohm resistor
  • 1 x 10Kohm resistor
  • 2 x 100uF capacitor, electroyltic
  • 1 x 220uF capacitor, electrolytic 
  • 1 x 470pF capacitor, ceramic disc 
  • 2 x 100nF capacitor, ceramic disc
  • 1 x PP3 clip lead
  • 1 x 3.5 stereo jack cable
  • 1 x speaker (8ohm, 66mm)
  • 1 x mono amplifer PCB

PCB dimensions: 45.5mm x 35.5mm.

It works nicely off a 9V battery (not supplied) or if you want to run it of the mains why not try our 12V wall power unit.

Click here to download build instructions pdf_icon.gif

Note: Schools will receive a more detailed set of teaching notes on a CDROM.

It is easy to convert this into a guitar practice amplifier. Click here for an application note that explains how to do this. pdf_icon.gif

This product is also available in retail packaging making them an ideal gift. Click here to view the retail version

If you are looking for design ideas check out the amplifier gallery  

MP3_Amplifiers_4_9_thumb.JPG stereoamp2.JPG MP3_Amplifiers__3_5.JPG MP3_Amplifiers_1_1.JPG

Kitronik Exclusive Product Gallery Teaching Notes Buy More Save More Free Sample Available This is a Key Stage 3 Level Kit
DescriptionCode 1+ 10+ 100+
MP3 mono audio amplifier kit2115 £3.02 £2.29 £1.99
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Ask a question about product:

Posted by Gareth Evans on May 3rd, 2011
Hi, does the stereo jack internally connect both L & R channels together, or is only 1 channel fed to the amp board?

Thanks

Gareth
Posted by geoffhampson on May 3rd, 2011
The mono amplifier only uses one channel. It doesn’t do anything cleaver, like equally mix the two channels. If you want a higher spec amplifier then there is a stereo version of the amplifier (there is a link to the stereo version on the related products - top left).
Posted by Jamey :) on Sep 12th, 2011
Just wondering what is the maximum Decibel output?
Posted by geoffhampson on Sep 12th, 2011
The output sound pressure level for the speaker is 89 dB (+/- 3dB). The max input power of the speaker is 1W. So at 1m the output power will be 89dB.
Posted by Michael on Sep 21st, 2011
What does the universal jack fit? Is it most phones and mp3 players but it won't fit the Iphone or Ipod!
Posted by geoffhampson on Sep 21st, 2011
We do a deluxe version of the amplifier, which is stereo and has a volume control, DC jack, on /off switch but more importantly is available in two options, with a standard 3.5mm jack or with an iPod connection. That version will work with an iPod but doesn't currently work with an iPhone as the connections are slightly different.
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Reviewed by Pete on Jun 07th, 2011
I used this audio amplifier kit to make my own iPod amplifier. It worked well and the sound quality is good. It was easy to assemble and I think anyone with basic soldering skills shouldn't have a problem building it.

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