On Jun 10, 4:00*pm, Bill Baka wrote:
On 06/10/2010 02:08 AM, RHF wrote:



On Jun 8, 3:10 pm, Bill *wrote:
On 06/08/2010 01:50 AM, RHF wrote:

On Jun 7, 7:49 pm, Bill * *wrote:
On 06/06/2010 07:32 PM, Brenda Ann wrote:

"Bill * * *wrote in message
...
On 06/06/2010 06:59 PM, bpnjensen wrote:
On Jun 6, 5:48 pm, Bill * * * wrote:

I don't know about you guys, but I like my filament bulbs in the winter.
The lack of efficiency just helps heat the room I am in, so no big deal.
My summer bulbs are CFL's, soon to be LED's when the price comes down to
something a mere mortal can afford.

In the winter, this is probably true - what you lose on light
efficiency you save on heating. *Then, the question becomes - per unit
of tangible heat energy, what costs less - the electricity to light
the bulb or the "other" source?

I am sure this can be calculated, but not by this guy! :-)

I have a big reason to not want the CFL's in the winter, radio noise.
DX sucks in the summer and the noise level goes up in the evenings when
everybody turns on their energy saving noise makers.

Imagine how much MORE efficient those lamps would be if they DIDN'T eminate
energy in totally useless RF ranges...

Heh,
A lot. I think some of mine were the older or first generation and
burned out and got replaced with the newer ones.
- My main source of noise in my bedroom/listening
- room is an SCR controlled touch lamp.
- Even if it is not on it still makes noise. HUH?
- Bill Baka

BB - So un-plug it - idtars ~ RHF

- I do, if not turn off the entire plug strip it is getting it's power
- from. Why it makes noise when it isn't even on is the mystery, not
that
- I'm going to waste time hunting it down. It's another "Made in
China" POS.

BB - That -a-s-s-u-m-e-s- that the Wall Outlet that
the Plug Strip is plugged into is wired correctly;
and that the Plug Strip is not defective.

By un-plugging the Plug Strip from the Wall Outlet
you will know for a fact that there is absolutely "No"
AC Power getting to the SCR Touch Lamp.

trust but verify ~ RHF
* .

Finding and Eliminating Noise Sources
{One-at-a-Time}
-note- Paper and Pencil required

1 - Place a portable {battery powered} AM/FM/SW
Radio near the the Major Offender {your SCR Touch
Lamp} when it is turned "No' to establish your
Maximum Noise Reading.

2 - Turn 'Off' the SCR Touch Lamp and check the
Radio for RFI Noise.

3 - Un-Plug the SCR Touch Lamp and check the
Radio for RFI Noise.

4 - Now walk around the House with the Radio and
Check Each Room and turn 'On' each Device in the
Rooms for other RFI Noise Sources.
-note- Identify and Eliminate as many RFI Noise
Sources as you can.

usually there is more than one rfi noise source
and after a dozen things get fixed or eliminated
usually the noise floor is quieter and the radio
listening is much easier on the ears and mind ~ RHF
* .

* *.
Had a new round Overhead {Center} Ceiling Light
Fixture that used 2 Panasonic Quad Tube {2-Pin}
CFLs cause it was producing 'noise' when it was On.
http://www.lightbulbemporium.com/18w_quad_tube_cfls.asp

The replacement was a Costco Overhead {Center}
Ceiling Light Fixture that used 2 regular E27
Screw-in CFLs and the Noise was gone. Plus the
regular E27 Screw-in CFLs cost Half as much as
the 2-Pin kind and -if- you want to, you can even
use good old E27 Scew-in Incandescent Light Bulbs
of new E27 Scew-in LED Light Bulbs.

don't live with a problem - fix it ~ RHF
* *.

OK, since you asked, I did totally unplug the power strip after
unplugging the offending lamp. The noise did go down due to some of the
wall warts having switching supplies in them. It is the background noise
of the neighborhood that is killing my DX'ing. I have a battery powered
marine RDF to chase it down but as of today I can't find it under my
huge pile of stuff in the garage. Whatever the noise source is, it does
not follow a pattern like an SCR lamp would do. There is one big spike
at the peaks of the 60Hz power cycle that is caught by my Hammarlund's
noise limiter, but the rest is too random to be from SCR's.
All I have found out so far is that it is not coming from my house.
Looking at the audio out with my scope the frequency pattern appears to
be about 600 to 1200 Hz, but with a nasty amplitude. Since my scope is a
2245A Tektronix 100MHz analog and not a digital I can't take a one shot
picture of the noise. I tried with my digital camera but after about ten
attempts I gave up since the camera shutter speed was too long for one
trace. Since my neighborhood is not anywhere near any industry and the
noise is always there I should be able to track it, but again, I need to
find that danged RDF.
Bill Baka- Hide quoted text -

- Show quoted text -

Not to hijack the thread Bill, but you said the magic word
*Hammarlund* - what piece are you using? :-)