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#1 |
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diyAudio Member
Join Date: Apr 2008
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Hi guys, I'm searching a amp to drive two 4Ohm 2W speakers.
It should be portable and i want to use AA-Batteries to power it. The Amp should run with 6-9V! can someone recommend a kit or has such a amp to sell? (i also have the a Zhaolu 2.5 headphone amp here (the small cheap one), can i use this with some modifications?) |
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#3 |
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diyAudio Member
Join Date: Apr 2008
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thx, that seems to be a good shop.
this amp looks perfect: http://store.qkits.com/moreinfo.cfm/QK143 but $32-$42 shipping costs to Europe |
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#4 |
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diyAudio Member
Join Date: Nov 2004
Location: Utrecht
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Then buy your components locally, find the TDA2005 datasheet and build on veroboard or p2p.
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#5 |
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diyAudio Member
Join Date: Oct 2005
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#6 |
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diyAudio Member
Join Date: Jun 2008
Location: Dhaka
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Hi,
If you can make your own amplifier, you can use LM380N-18 for ~1 W power, LM380N-14 for ~2 W power. Construction is very easy as you require only a coupling capacitor and a decoupling capacitor on the Vcc pin.
__________________
The tallest building in the world starts from the first brick. পৃথিবীর সর্বোচ্চ দালানও প্রথম ইট বসানো থেকেই তৈরি হয়েছে। |
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#7 |
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diyAudio Member
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I have been playing with these little thingies, Eua5202
made by Eutech. the sound is good, efficincy is really high and output at 4 ohms is 2 watt. they work on 3.7 volts, so one polymer cell will do the job. http://www.alldatasheet.net/datashee...A5202QIR0.html
__________________
Always check the power supply... and my spelling... |
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