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Pocket Speaker Integrated Amplifier and Re-Chargeable Battery

on July 01, 2007

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I've make for my PPC.

ChipAmp DIY

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DIY TDA2009 Amplifier

I've started home build audio amplifier using the TDA 2009A, the power is 10W+10W and enough for me because I have small speaker. The TDA2009A using from 8 to 24 V, and its very easy to build. To do: Drawing the schematic by Cadsoft Eagle. Making the PCB. Building and testing. Making the box for amp. Today I create schematic by Cadsoft Eagle. The first, Cadsoft Eagle is free for personal use, second they allow create use library, so it is first time I'm using the Cadsoft Eagle, that why I'm do it very slow. The Cadsoft Eagle do not have TDA 2009 library, so I'm being create a new library for TDA 2009. Next, draw the schematic, it is simply, but when switch to PCB to difficult to me :D Buzzzzzzz, that all today, tomorrow will be continue...

DIY Amplifier based on TDA1557Q

It's simple to build. I'm using power suply from old AT PSU. Low picture quality because I using my PDA, may be I need a good camera :)

DIY TDA2009 Amplifier (continue)

Wow, that all folk, PCB design was finished after 3 hours hard working. Next, print out and preparing for eatching PCB. Tomorrow I'll go to the market buying some materials.

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