The fact is that some do and some do not cause HF interference. I have not
checked every one at LF. . I have several that are satisfactory and two that
are not. The problem is not with one's own house, where baddies can be
switched off,but with 'them' next door.
G3GVB
----- Original Message -----
From: g3ldo <[email protected]>
To: <[email protected]>
Sent: Monday, September 06, 2004 12:11 PM
Subject: LF: Re: Save energy, but generate QRM ...
Jean-Louis F6AGR said:
> Let me introduce to you a new candidate to the "Ugliest 137 kHz QRM
> generator Challenge".
> I'm talking about the Philips SL.E Pro 16W Warm White light bulb.
> This light bulb (quite expensive) saves energy and uses only 16 watts AC
to
> produce the same light as a 100 watts conventional light bulb, but
generates
> an horrible noise (multiple discrete frequency lines) all over the 137
kHz
> band.
About three years ago I tentitively tried out one of these energy saving
bulbs and didn't find any interference throughout the LF/HF spectrum and
have, over a period introduced more into the house. These bulbs do save a
lot of energy, which is a consideration with cost of energy in this
country.
So perhaps we could draw up a list of low energy bulbs that don't cause
interference.
Most of the bulbs I have are cheap ones from Woolworths and are described
as
BIAX V257 made by GE Lighting.
As regards electronic 'transformers' could the fix be just to replace it
with a conventional transformer?
Peter, G3LDO
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