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<div class="moz-cite-prefix">On 07/03/2015 10:19 PM, Bill Nelson via
Stagecraft wrote:<br>
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cite="mid:2535bd315aceb1351048071a49075897.squirrel@webmail.peak.org"
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<pre wrap="">At least some lamps last longer on AC than DC due to ion migration.
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Differential tungsten evaporation from the filament?
Bill
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<pre class="moz-signature" cols="72">--
Jerry Durand, Durand Interstellar, Inc. <a class="moz-txt-link-abbreviated" href="http://www.interstellar.com">www.interstellar.com</a>
tel: +1 408 356-3886, USA toll free: 1 866 356-3886
Skype: jerrydurand
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