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</o:shapelayout></xml><![endif]--></head><body lang=EN-US link=blue vlink=purple><div class=WordSection1><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>It might be one of those below average smart phones.<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><div><div style='border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in 0in 0in'><p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>From:</span></b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'> nsrca-discussion-bounces@lists.nsrca.org [mailto:nsrca-discussion-bounces@lists.nsrca.org] <b>On Behalf Of </b>Ronald Van Putte<br><b>Sent:</b> Wednesday, July 03, 2013 11:59 AM<br><b>To:</b> General pattern discussion<br><b>Subject:</b> Re: [NSRCA-discussion] Oops....Re: Power Supplies<o:p></o:p></span></p></div></div><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Well, that description sure beats "butt dialing".<o:p></o:p></p><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal>Ron<o:p></o:p></p></div><div><p class=MsoNormal><o:p> </o:p></p><div><div><p class=MsoNormal>On Jul 3, 2013, at 9:51 AM, <a href="mailto:DaveL322@comcast.net">DaveL322@comcast.net</a> wrote:<o:p></o:p></p></div><p class=MsoNormal><br><br><o:p></o:p></p><p class=MsoNormal style='margin-bottom:12.0pt'><span style='font-family:"Arial","sans-serif"'>"smart phone" was pocket emailing.<br><br>Regards,<br><br>Dave<br><br>Sent from my HTC EVO 4G LTE exclusively from Sprint<br><br><o:p></o:p></span></p><div id="htc_header"><p class=MsoNormal style='margin-bottom:12.0pt'><span style='font-family:"Arial","sans-serif"'>----- Reply message -----<br>From: "<a href="mailto:DaveL322@comcast.net">DaveL322@comcast.net</a>" <<a href="mailto:DaveL322@comcast.net">DaveL322@comcast.net</a>><br>To: "General pattern discussion" <<a href="mailto:nsrca-discussion@lists.nsrca.org">nsrca-discussion@lists.nsrca.org</a>><br>Subject: [NSRCA-discussion]Power Supplies<br>Date: Wed, Jul 3, 2013 10:46<o:p></o:p></span></p></div><p class=MsoNormal style='margin-bottom:12.0pt'><br><span style='font-family:"Arial","sans-serif"'> <br><br>Regards,<br><br>Dave<br><br>Sent from my HTC EVO 4G LTE exclusively from Sprint<br><br><o:p></o:p></span></p><div id="htc_header"><p class=MsoNormal style='margin-bottom:12.0pt'><span style='font-family:"Arial","sans-serif"'>----- Reply message -----<br>From: "Jon Lowe" <<a href="mailto:jonlowe@aol.com">jonlowe@aol.com</a>><br>To: <<a href="mailto:getterflash@yahoo.com">getterflash@yahoo.com</a>>, <<a href="mailto:nsrca-discussion@lists.nsrca.org">nsrca-discussion@lists.nsrca.org</a>><br>Subject: [NSRCA-discussion] Power Supplies<br>Date: Wed, Jul 3, 2013 10:17<o:p></o:p></span></p></div><p class=MsoNormal><span style='font-family:"Arial","sans-serif";color:black'><o:p> </o:p></span></p><div><p class=MsoNormal><span style='font-family:"Arial","sans-serif";color:black'>Love the description on Amazon. In one place is says "Power source: Air Powered". That I'd like to see. In anotherplace, it says it is "cooling by free air convection", yet it shows a fan!<o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-family:"Arial","sans-serif";color:black'> <o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-family:"Arial","sans-serif";color:black'>Bob,<o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-family:"Arial","sans-serif";color:black'>How stable is the voltage output at full load? One thing I've liked about the server PS's I've been using is that they are extremely stable between minimum and full load. I use the things day in and day out with many on-off cycles with nary a problem.<o:p></o:p></span></p></div><div><p class=MsoNormal><span class=apple-style-span><span style='font-size:13.5pt;font-family:"Arial","sans-serif";color:black'>Jon</span></span><span style='font-family:"Arial","sans-serif";color:black'><o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-bottom:12.0pt'><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:black'>-----Original Message-----<br>From: Bob Kane <<a href="mailto:getterflash@yahoo.com">getterflash@yahoo.com</a>><br>To: General pattern discussion <<a href="mailto:nsrca-discussion@lists.nsrca.org">nsrca-discussion@lists.nsrca.org</a>><br>Sent: Wed, Jul 3, 2013 9:02 am<br>Subject: Re: [NSRCA-discussion] Power Supplies<o:p></o:p></span></p><div id="AOLMsgPart_2_bfe559c4-c53a-43d7-ac43-a344574c5a86"><div><div><div><p class=MsoNormal style='background:white'><span style='color:black'>No handles and it was never intended for public display. But it does have a full enclosure and a green LED.<o:p></o:p></span></p></div><div><p class=MsoNormal><span style='color:black'><o:p> </o:p></span></p></div><div><p class=MsoNormal><span style='color:black'>The case does have a couple of threaded holes so it could be easily mounted in a charging box.<o:p></o:p></span></p></div><div><p class=MsoNormal style='background:white'><span style='color:black'> <o:p></o:p></span></p></div><div><p class=MsoNormal style='background:white'><span style='color:black'>Bob Kane<br><a href="mailto:getterflash@yahoo.com">getterflash@yahoo.com</a><o:p></o:p></span></p></div><div><div><div><div class=MsoNormal align=center style='text-align:center;background:white'><span style='color:black'><hr size=1 width="100%" align=center></span></div><p class=MsoNormal style='background:white'><b><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:black'>From:</span></b><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:black'> Ronald Van Putte <<a href="mailto:vanputter@gmail.com">vanputter@gmail.com</a>><br><b>To:</b> General pattern discussion <<a href="mailto:nsrca-discussion@lists.nsrca.org">nsrca-discussion@lists.nsrca.org</a>> <br><b>Sent:</b> Wednesday, July 3, 2013 9:55 AM<br><b>Subject:</b> Re: [NSRCA-discussion] Power Supplies</span><span style='color:black'><o:p></o:p></span></p></div><div><p class=MsoNormal style='background:white'><span style='color:black'><o:p> </o:p></span></p><div id=yiv1852618233><div><p class=MsoNormal style='background:white'><span style='color:black'>Yeah, but does it have cool lights and a neat handle? <o:p></o:p></span></p><div><p class=MsoNormal style='background:white'><span style='color:black'><o:p> </o:p></span></p></div><div><p class=MsoNormal style='background:white'><span style='color:black'>On the serious side, that's a great find. Let's see 15 amps at 24 volts is 360 watts. Charging two 5S packs at 4 amps at a nominal 20 volts per pack is only 160 watts, so the power supply should work for two 10S packs. <o:p></o:p></span></p></div><div><p class=MsoNormal style='background:white'><span style='color:black'><o:p> </o:p></span></p></div><div><p class=MsoNormal style='background:white'><span style='color:black'>BTW, I am using two Turnigy 10XC chargers in my charge box.<o:p></o:p></span></p></div><div><p class=MsoNormal style='background:white'><span style='color:black'><o:p> </o:p></span></p></div><div><p class=MsoNormal style='background:white'><span style='color:black'>Ron Van Putte<o:p></o:p></span></p></div><div><p class=MsoNormal style='background:white'><span style='color:black'><o:p> </o:p></span></p><div><div><p class=MsoNormal style='background:white'><span style='color:black'>On Jul 3, 2013, at 6:48 AM, Bob Kane wrote:<o:p></o:p></span></p></div><p class=MsoNormal style='background:white'><span style='color:black'><br><br><o:p></o:p></span></p><div><div><div><p class=MsoNormal style='background:white'><span style='color:black'>I have picked up two of these from Amazon:<o:p></o:p></span></p></div><div><p class=MsoNormal><span style='color:black'><o:p> </o:p></span></p></div><div><p class=MsoNormal><span style='color:black'>"Dc 24v 15a Switching Power Supply Transformer Regulated", they are around $25. Working well so far. No modifications needed, but you do need to wire a power cord and charger leads.<o:p></o:p></span></p></div><div><p class=MsoNormal><span style='color:black'><o:p> </o:p></span></p></div><div><p class=MsoNormal><span style='color:black'>I use the Turnigy 10XC charger and usually charge at 4 amps. The charger draws 7 amps from the supply when charging a 10S pack so in theory I could run two chargers off this supply. <o:p></o:p></span></p></div><div><p class=MsoNormal><span style='color:black'><o:p> </o:p></span></p></div><div><p class=MsoNormal><span style='color:black'>I have also powered this setup from a cheapie 800 watt two-stroke generator a couple of times, no issues yet.<o:p></o:p></span></p></div><div><p class=MsoNormal><span style='color:black'> <o:p></o:p></span></p></div><div><p class=MsoNormal style='background:white'><span style='color:black'>Bob Kane<br><a href="mailto:getterflash@yahoo.com">getterflash@yahoo..com</a><o:p></o:p></span></p></div><div><div><div><div class=MsoNormal align=center style='text-align:center;background:white'><span style='color:black'><hr size=1 width="100%" align=center></span></div><p class=MsoNormal style='background:white'><b><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:black'>From:</span></b><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:black'> Ronald Van Putte <<a href="mailto:vanputter@gmail.com">vanputter@gmail.com</a>><br><b>To:</b> General pattern discussion <<a href="mailto:nsrca-discussion@lists.nsrca.org">nsrca-discussion@lists.nsrca.org</a>> <br><b>Sent:</b> Monday, July 1, 2013 11:50 PM<br><b>Subject:</b> [NSRCA-discussion] Power Supplies</span><span style='color:black'><o:p></o:p></span></p></div><div><p class=MsoNormal style='background:white'><span style='color:black'><o:p> </o:p></span></p><div id=yiv1852618233><div><p class=MsoNormal style='background:white'><span style='color:black'>A lot of electric-power pilots are building or buying charge boxes. Many of the charge boxes contain the </span><span class=yiv1852618233apple-style-span><span style='color:#333333'>HP DL380 G4 DPS-600PB 12V/575W power supply. </span></span><span style='color:black'> <o:p></o:p></span></p><div><p class=MsoNormal style='background:white'><span style='color:black'><o:p> </o:p></span></p></div><div><p class=MsoNormal style='background:white'><span class=yiv1852618233apple-style-span><span style='color:#333333'>Since they are so inexpensive to acquire and so simple to convert for our use, I'd like to provide some information about them.</span></span><span style='color:black'><o:p></o:p></span></p></div><div><p class=MsoNormal style='background:white'><span style='color:black'><o:p> </o:p></span></p></div><div><p class=MsoNormal style='background:white'><span class=yiv1852618233apple-style-span><span style='color:#333333'>These are so called "hot swap" power supplies. They are really tough and were designed to be used in a computer server 24/7. Their output is 47 amperes at about 12.5 volts. You can use two in series to provide 47 amperes at about 25 volts.</span></span><span style='color:black'><o:p></o:p></span></p></div><div><p class=MsoNormal style='background:white'><span style='color:black'><o:p> </o:p></span></p></div><div><p class=MsoNormal style='background:white'><span class=yiv1852618233apple-style-span><span style='color:#333333'>You can buy them at places like eBay for about $15 delivered if you shop around, particularly if you look for lots of two or three. These power supplies cost upwards of $300 when they were in active use, but the servers they were designed to work with have been retired, leaving a lot of these server power supplies as surplus. Consequently, you can get them pretty cheap. </span></span><span style='color:black'><o:p></o:p></span></p></div><div><p class=MsoNormal style='background:white'><span style='color:black'><o:p> </o:p></span></p></div><div><p class=MsoNormal style='background:white'><span class=yiv1852618233apple-style-span><span style='color:#333333'>I usually show pilots with any measure of soldering skills how to convert them for our use. The conversion takes about 30 minutes. The rest, who can't solder or can't follow simple directions, I do the conversion for them.</span></span><span style='color:black'><o:p></o:p></span></p></div><div><p class=MsoNormal style='background:white'><span style='color:black'><o:p> </o:p></span></p></div><div><p class=MsoNormal style='background:white'><span class=yiv1852618233apple-style-span><span style='color:#333333'>There is a great description how to do the conversion of the HP model DPS-600PB power supply here: <a href="https://sites.google.com/site/tjinguytech/my-projects/HP47A" target="_blank">https://sites.google.com/site/tjinguytech/my-projects/HP47A</a></span></span><span style='color:black'><o:p></o:p></span></p></div><div><p class=MsoNormal style='background:white'><span style='color:black'><o:p> </o:p></span></p></div><div><p class=MsoNormal style='background:white'><span class=yiv1852618233apple-style-span><span style='color:#333333'>Any questions? E-Mail me offline.</span></span><span style='color:black'><o:p></o:p></span></p></div><div><p class=MsoNormal style='background:white'><span style='color:black'><o:p> </o:p></span></p></div><div><p class=MsoNormal style='background:white'><span class=yiv1852618233apple-style-span><span style='color:#333333'>See you at the Nats.</span></span><span style='color:black'><o:p></o:p></span></p></div><div><p class=MsoNormal style='background:white'><span style='color:black'><o:p> </o:p></span></p></div><div><p class=MsoNormal style='background:white'><span class=yiv1852618233apple-style-span><span style='color:#333333'>Ron Van Putte</span></span><span style='color:black'><o:p></o:p></span></p></div></div></div><p class=MsoNormal style='margin-bottom:12.0pt;background:white'><span style='color:black'><br>_______________________________________________<br>NSRCA-discussion mailing list<br><a href="mailto:NSRCA-discussion@lists.nsrca.org">NSRCA-discussion@lists.nsrca.org</a><br><a href="http://lists.nsrca.org/mailman/listinfo/nsrca-discussion" target="_blank">http://lists.nsrca.org/mailman/listinfo/nsrca-discussion</a><o:p></o:p></span></p></div></div></div></div></div><p class=MsoNormal style='background:white'><span style='color:black'>_______________________________________________<br>NSRCA-discussion mailing list<br><a href="mailto:NSRCA-discussion@lists.nsrca.org">NSRCA-discussion@lists.nsrca.org</a><br><a href="http://lists.nsrca.org/mailman/listinfo/nsrca-discussion" target="_blank">http://lists.nsrca.org/mailman/listinfo/nsrca-discussion</a><o:p></o:p></span></p></div><p class=MsoNormal style='background:white'><span style='color:black'><o:p> </o:p></span></p></div></div></div><p class=MsoNormal style='margin-bottom:12.0pt;background:white'><span style='color:black'><br>_______________________________________________<br>NSRCA-discussion mailing list<br><a href="mailto:NSRCA-discussion@lists.nsrca.org">NSRCA-discussion@lists.nsrca.org</a><br><a href="http://lists.nsrca.org/mailman/listinfo/nsrca-discussion" target="_blank">http://lists.nsrca.org/mailman/listinfo/nsrca-discussion</a><o:p></o:p></span></p></div></div></div></div></div></div><div id="AOLMsgPart_3_bfe559c4-c53a-43d7-ac43-a344574c5a86"><pre style='background:white'><tt><span style='color:black'>_______________________________________________<o:p></o:p></span></tt></pre><pre style='background:white'><tt><span style='color:black'>NSRCA-discussion mailing list<o:p></o:p></span></tt></pre><pre style='background:white'><tt><span style='color:black'><a href="mailto:NSRCA-discussion@lists.nsrca.org">NSRCA-discussion@lists.nsrca.org</a><o:p></o:p></span></tt></pre><pre style='background:white'><tt><span style='color:black'><a href="http://lists.nsrca.org/mailman/listinfo/nsrca-discussion" target="_blank">http://lists.nsrca.org/mailman/listinfo/nsrca-discussion</a><o:p></o:p></span></tt></pre></div></div><p class=MsoNormal>_______________________________________________<br>NSRCA-discussion mailing list<br><a href="mailto:NSRCA-discussion@lists.nsrca.org">NSRCA-discussion@lists.nsrca.org</a><br><a href="http://lists.nsrca.org/mailman/listinfo/nsrca-discussion">http://lists.nsrca.org/mailman/listinfo/nsrca-discussion</a><o:p></o:p></p></div><p class=MsoNormal><o:p> </o:p></p></div></div></body></html>