<html><head></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; ">You do realize that he gets e-mail, don't you? He may do it just for you.<div><br></div><div>Ron</div><div><br><div><div>On Jul 3, 2013, at 9:24 AM, Keith Hoard wrote:</div><br class="Apple-interchange-newline"><blockquote type="cite">
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<div>Unless he’s wearing mirrored sunglasses and one of those reflective belts
that goes around his waist and over his shoulder, I’d have a hard time
respecting his “Authori-tay” . . .</div>
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<div style="font-color: black"><b>From:</b> <a title="vanputter@gmail.com" href="mailto:vanputter@gmail.com">Ronald Van Putte</a> </div>
<div><b>Sent:</b> Wednesday, July 03, 2013 9:14 AM</div>
<div><b>To:</b> <a title="nsrca-discussion@lists.nsrca.org" href="mailto:nsrca-discussion@lists.nsrca.org">General pattern discussion</a>
</div>
<div><b>Subject:</b> Re: [NSRCA-discussion] Power Supplies</div></div></div>
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<div style="FONT-SIZE: small; FONT-FAMILY: 'Calibri'; FONT-WEIGHT: normal; COLOR: #000000; FONT-STYLE: normal; TEXT-DECORATION: none; DISPLAY: inline">John
Fuqua can tell you. He's the AMA "hall monitor" at the RV site at Site 3
and he's there now.
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<div>Yeah, he's been flying in Soaring.
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<div>Ron</div>
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<div>On Jul 3, 2013, at 9:07 AM, Keith Hoard wrote:</div><br class="Apple-interchange-newline">
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<div>Speaking of power supplies.. .</div>
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<div>Does anyone know what plug I need to get to obtain 120VAC from the RV
power receptacles at Site 4?</div>
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<div style="font-color: black"><b>From:</b> <a title="getterflash@yahoo.com" href="mailto:getterflash@yahoo.com">Bob Kane</a> </div>
<div><b>Sent:</b> Wednesday, July 03, 2013 6:48 AM</div>
<div><b>To:</b> <a title="nsrca-discussion@lists.nsrca.org" href="mailto:nsrca-discussion@lists.nsrca.org">General pattern discussion</a>
</div>
<div><b>Subject:</b> Re: [NSRCA-discussion] Power Supplies</div></div></div>
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<div style="FONT-SIZE: 12pt; FONT-FAMILY: 'times new roman', 'new york', times, serif"><span>I
have picked up two of these from Amazon:</span></div>
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<div style="BACKGROUND-COLOR: transparent"><span>"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.<br></span></div>
<div style="FONT-SIZE: 16px; FONT-FAMILY: 'times new roman', 'new york', times, serif; COLOR: rgb(0,0,0); FONT-STYLE: normal; BACKGROUND-COLOR: transparent"><span><br></span></div>
<div style="FONT-SIZE: 16px; FONT-FAMILY: 'times new roman', 'new york', times, serif; COLOR: rgb(0,0,0); FONT-STYLE: normal; BACKGROUND-COLOR: transparent"><span>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. </span></div>
<div style="FONT-SIZE: 16px; FONT-FAMILY: 'times new roman', 'new york', times, serif; COLOR: rgb(0,0,0); FONT-STYLE: normal; BACKGROUND-COLOR: transparent"><span><br></span></div>
<div style="FONT-SIZE: 16px; FONT-FAMILY: 'times new roman', 'new york', times, serif; COLOR: rgb(0,0,0); FONT-STYLE: normal; BACKGROUND-COLOR: transparent"><span>I
have also powered this setup from a cheapie 800 watt two-stroke generator a
couple of times, no issues yet.</span></div>
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<div style="FONT-SIZE: 12pt; FONT-FAMILY: 'times new roman', 'new york', times, serif">Bob
Kane<br><a href="mailto:getterflash@yahoo.com">getterflash@yahoo.com</a><br></div>
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<font size="2" face="Arial"><b><span style="FONT-WEIGHT: bold">From:</span></b>
Ronald Van Putte <<a href="mailto:vanputter@gmail.com">vanputter@gmail.com</a>><br><b><span style="FONT-WEIGHT: bold">To:</span></b> General pattern discussion <<a href="mailto:nsrca-discussion@lists.nsrca.org">nsrca-discussion@lists.nsrca.org</a>>
<br><b><span style="FONT-WEIGHT: bold">Sent:</span></b> Monday, July 1, 2013
11:50 PM<br><b><span style="FONT-WEIGHT: bold">Subject:</span></b>
[NSRCA-discussion] Power Supplies<br></font></div>
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<div id="yiv4968788044">
<div>A lot of electric-power pilots are building or buying charge boxes.
Many of the charge boxes contain the <span class="yiv4968788044Apple-style-span" style="COLOR: rgb(51,51,51)">HP DL380 G4 </span><span class="yiv4968788044Apple-style-span" style="COLOR: rgb(51,51,51)">DPS-600PB
12V/</span><span class="yiv4968788044Apple-style-span" style="COLOR: rgb(51,51,51)">575W power supply. </span>
<div><span class="yiv4968788044Apple-style-span" style="COLOR: rgb(51,51,51)"><br></span></div>
<div><span class="yiv4968788044Apple-style-span" style="COLOR: rgb(51,51,51)">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></div>
<div><span class="yiv4968788044Apple-style-span" style="COLOR: rgb(51,51,51)"><br></span></div>
<div><span class="yiv4968788044Apple-style-span" style="COLOR: rgb(51,51,51)">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 </span><span class="yiv4968788044Apple-style-span" style="COLOR: rgb(51,51,51)">47 amperes at
about 25 volts.</span></div>
<div><span class="yiv4968788044Apple-style-span" style="COLOR: rgb(51,51,51)"><br></span></div>
<div><span class="yiv4968788044Apple-style-span" style="COLOR: rgb(51,51,51)">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></div>
<div><span class="yiv4968788044Apple-style-span" style="COLOR: rgb(51,51,51)"><br></span></div>
<div><span class="yiv4968788044Apple-style-span" style="COLOR: rgb(51,51,51)">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></div>
<div><span class="yiv4968788044Apple-style-span" style="COLOR: rgb(51,51,51)"><br></span></div>
<div><span class="yiv4968788044Apple-style-span" style="COLOR: rgb(51,51,51)">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" rel="nofollow" target="_blank">https://sites.google.com/site/tjinguytech/my-projects/HP47A</a></span></div>
<div><span class="yiv4968788044Apple-style-span" style="COLOR: rgb(51,51,51)"><br></span></div>
<div><span class="yiv4968788044Apple-style-span" style="COLOR: rgb(51,51,51)">Any questions? E-Mail me
offline.</span></div>
<div><span class="yiv4968788044Apple-style-span" style="COLOR: rgb(51,51,51)"><br></span></div>
<div><span class="yiv4968788044Apple-style-span" style="COLOR: rgb(51,51,51)">See you at the Nats.</span></div>
<div><span class="yiv4968788044Apple-style-span" style="COLOR: rgb(51,51,51)"><br></span></div>
<div><span class="yiv4968788044Apple-style-span" style="COLOR: rgb(51,51,51)">Ron Van
Putte</span></div></div></div><br>_______________________________________________<br>NSRCA-discussion
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