Another suggestion in the hunt for a +5V power supply for PDA's is a KA-1797 Kit produced by JAYCAR.
I have one of these kits working at the moment and it seems to do the job. Its only a 1.5A output at 5.12vdc, so the LM317T Semiconductor (voltage reg) runs a but hot, when charging my fully flat HP Ipaq RZ1710, so a semi decent sized heat sink is needed, but when toping up the PDA the voltage reg runs at a more happy temp level. One point to note is one of these kits are used and installed into a glider you must insulate the heatsink from your instrument panel as, not insulating it will cause a dead short to "negative" and Ella somoka ! if your instrument panel is bonded to the neg on the aircrafts battery. It would be a great compliment to anyone's instrument panel to keep your panel virbator warm and ready to go ! The output voltage with a bit of maths would be able to be adjusted to a bang on 5.00vdc if a variable resistor was used in setting the adjust leg of the voltage reg not a standard 1.2k resistor as supplied. Cost kit $ 6.95 Heatsink $ 5.00 and using your MasterCard -- Priceless Hope this helps Ben ----- Original Message ----- From: Dave To: 'Discussion of issues relating to Soaring in Australia.' Sent: Tuesday, August 21, 2007 1:51 PM Subject: [Aus-soaring] 5V Power supplies Hi All, A quick note regarding 5v supplies for PDA's. In a previous post someone asked about switchmode, high efficiency supplies. A good cost effective option is here then type into "find" 361-4804. For some reason stupid site won't deep link. $24.95
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