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KB2VXA > TECH 12.07.04 20:08l 33 Lines 1158 Bytes #999 (0) @ WW
BID : 25205_WT3V
Read: GUEST OE7FMI
Subj: Re: G8MNY > flourescent
Path: DB0FHN<DB0MRW<OK0PPL<DB0RES<ON0AR<7M3TJZ<EA5AKC<EA5DVS<KP4IG<WU3V<
N1UAN<W1GMF<W1ON<W1ON-5<K1UOL<K1UOL<WA2SNA<KC2COJ<WT3V
Sent: 040712/1446 25205@WT3V.#CNJ.NJ.USA.NOAM $:25205_WT3V
From: KB2VXA@WT3V.#CNJ.NJ.USA.NOAM
To : TECH@WW
Hi John and readers,
"The heaters are not needed in a warm environment..."
Small correction, the heaters are needed in any environment below the
boiling point of mercury. That's what they're for, if you examine one
you'll find tiny globules of mercury on it which need to be vaporized
before the lamp will operate.
Quite true, the lamps will "fail" in the cold, but unless it's REALLY
cold not entirely. Many times I have seen them outdoors flickering,
barely operating at substantially reduced output on cold winter days. I
don't suppose they would operate at all in certain areas of say, Canada
where temps hovering around -30F are common. It stands to reason, in such
low temparatures the lamps dissipate heat at a fantastic rate and the
mercury fails to vaporize properly if at all.
73 de Warren, KB2VXA@WT3V.#CNJ.NJ.USA.NOAM
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Message timed by cesium laser: 14:56 on 2004-Jul-12 GMT
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