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Re: [RFI] compact fluorescent bulbs

To: Dale Johnson <dj2001x@comcast.net>, Charles Coldwell <coldwell@gmail.com>
Subject: Re: [RFI] compact fluorescent bulbs
From: D C _Mac_ Macdonald <k2gkk@hotmail.com>
Date: Mon, 16 Dec 2019 13:17:40 +0000
List-post: <mailto:rfi@contesting.com>
It gets cold enough in Oklahoma winter to make CFLs a bad garage choice here, 
also!  Voice of experience.

73 de Mac, K2GKK/5​
Since 30 Nov 1953​
Oklahoma City, OK​
USAF, Retired ('61-'81)​
FAA, Retired ('94-'10)

From: RFI <rfi-bounces@contesting.com> on behalf of Dale Johnson 
Sent: Monday, December 16, 2019 05:24
To: Charles Coldwell <coldwell@gmail.com>
Cc: RFI RFI <rfi@contesting.com>
Subject: Re: [RFI] compact fluorescent bulbs

I have never had RFI issues with CFL’s or LED light bulbs, except as noted 
below, in fact I use two in the shack for lighting the desk.  I have had 
failures though.  They both get pretty hot at the base to the point the plastic 
gets brown and eventually the glass loosens up.  I just had a LED failure a 
couple weeks ago, it started to flicker and the base was loose, that bulb was 
only about a year old.

The CFL’s don’t work very well in our cold winters, I tried them out in the 
garage and they didn’t come on in the cold.  On the other hand I have LED shop 
lights and they work in the cold, just don’t daisy chain them because then they 
really put out RF noise.  By that I mean plug one shop light into another.  I 
plug each one into separate outlets.

Dale, K9VUJ

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