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Useful devices

Discussion in 'General Electronics Discussion' started by quantumtangles, Dec 23, 2012.

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  1. quantumtangles


    Dec 19, 2012
    Stereo Ipod amplifier made from a kit of parts yesterday.

    Had to check solder joints with a hot solder, but it came to life after checking voltage leading from the power supply until it disappeared and then re-soldering those joints.

    Great sound quality.

    2 x 8 ohm 0.5 watt speakers. Its going in an enclosure as a Christmas present.

    If anyone is interested, here is the Bill of Parts.

    1 x TDA2822M Audio Amplifer IC
    1 x 8 Pin IC Holder
    1 x 1Kohm Resistor
    2 x 10Kohm Resistors
    1 x 10Kohm Dual Potentiometer
    2 x 4.7ohm Resistors
    1 x Red 5mm LED
    2 x 100nF Ceramic Disc Capacitors
    2 x 470uF Electrolytic Capacitors
    2 x 100uF Electrolytic Capacitors
    1 x 10uF Electrolytic Capacitor
    1 x iPod Cable
    1 x PP3 Clip Lead
    1 x Right Angle Power Switch
    1 x DC Power Socket
    2 x Speakers (8ohm, 66mm)
    Connecting wire

    Sorry about blurry photos. Also...I used drinking glasses as speaker domes pro tem.

    Big fun, useful and cheap (cheaper than the wildly expensive Ipod/Iphone amplifiers you see in the shops.

    Hope someone else enjoys making it as much as I did.

    Attached Files:

    Last edited: Dec 23, 2012
  2. davenn

    davenn Moderator

    Sep 5, 2009
    awesome .... well done

  3. quantumtangles


    Dec 19, 2012
    Thanks Dave :D
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