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OT: Electronics advice needed to make a combined emergency charger / USB supply lead for my PDA


  • Subject: OT: Electronics advice needed to make a combined emergency charger / USB supply lead for my PDA
  • From: "Mark A Wright" <mawright@xxxxxxxxxxxx>
  • Date: Wed, 14 Jul 2004 13:08:42 +0100

I'm trying to make a combined emergency charger / USB charger for my PDA.



I've got all the hardware apart from the electronic components. What I
really need is some help in designing the circuit.



With my limited knowledge of electronics I've come up with this...



-[R1]-[LED]-[D1]-+------------[D2]--+

[R2]

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