I spoke with my "Christmas Tree Guru" who's been doing the light thing for
years. He advises the lamps that you are using have an internal resistance
that is too low.
He asks if you have all lamps out or just part of a string? Series lamps,
he tells me, are high resistance. If they're 'popping' the resistance is
too low.
Hope this helps,
73 de Phil - N8PS
Quoting Clayton Brantley via TenTec <tentec@contesting.com>:
Kim: I cannot address your question about the lighting issue but I
like theremark about theory at the bottom of your email. I have
always like this too:
If the facts do not conform to the theory, they must be changed.
Sure do hope some can help with your question!
73 Clayton N4EV
From: Kim Elmore <cw_de_n5op@sbcglobal.net>
To: Discussion of Ten-Tec Equipment <tentec@contesting.com>
Sent: Thursday, December 3, 2015 11:18 PM
Subject: [TenTec] Way Off Topic, But...
This is way off topic and not radio related, but there are some danged
smart people that participate on the reflector, so here goes...
It's the holidays and we've put up Christmas lights (mostly incandescent
series strings) and I'm seeing some very weird affects when I try
replacement bulbs. Specifically, when I plug in a replacement bulb of
ostensibly the correct voltage, it flashes like a strobe and is
immediately burned out. I tried some higher voltage bulbs, up top 12 V
and the same thing happens! All I can think of is that the cold
resistance of the filament is much higher in the replacements than in
all the other bulbs so that far more voltage appears across the new bulb
than the others and so the filament vaporizes. Is this what's going on?
It's very frustrating, to say the least...
73 & MX,
Kim N5OP
--
Kim Elmore, Ph.D. (Adj. Assoc. Prof., OU School of Meteorology, CCM, PP
SEL/MEL/Glider, N5OP, 2nd Class Radiotelegraph, GROL)
/"In theory there is no difference between theory and practice. But, in
practice, there is." //? Attributed to many people; it?s so true that it
doesn?t matter who said it./
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