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  1. W

    3V DC to 5V DC @ 1000mA converter.

    ;D I want to build this power supply for my iPod to be used when travelling. I have seen the design using LT1308 and MC34063... the problem is that these ICs are not available in my country. do you guys have other designs? Thanks.
  2. W

    TDA1524A Tone Control IC

    I built a project, a tone control for the 22W TDA1554 Power Amp. It is now working. But my problem is I can seem to make it sound loud unless I turn the vol to the max. And it starts to sound only whent the volume control is turned more than a quarter turn. Now, there is no problem with the...
  3. W

    Automatic Electronics Dry Box

    I wonder how these devices able to control humidity inside an enclosure and how can they mimic the funcion of silica gels. Anybody have a circuit of this?
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