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CelticDude December 30th 06 05:31 PM

Dimmer Switches
 
Hello all,

My wife seems to be using the dimmer switch more in the winter just
when I'm listening to SW. The noise blanker doesn't seem to help. Are
there dimmer switches made that don't produce the "pleasant" buzz of
the standard one? Presumably it would be more expensive, but might be
worth it.

Thanks,

DWP


Carter-k8vt December 30th 06 05:47 PM

Dimmer Switches
 
CelticDude wrote:
Hello all,

My wife seems to be using the dimmer switch more in the winter just
when I'm listening to SW. The noise blanker doesn't seem to help.
Are there dimmer switches made that don't produce the "pleasant" buzz
of the standard one?


Yes, they will be marked "Includes radio frequency interference
suppression circuitry" or similar.

Presumably it would be more expensive,


Yes

Ron Hardin December 30th 06 06:25 PM

Dimmer Switches
 
CelticDude wrote:

Hello all,

My wife seems to be using the dimmer switch more in the winter just
when I'm listening to SW. The noise blanker doesn't seem to help. Are
there dimmer switches made that don't produce the "pleasant" buzz of
the standard one? Presumably it would be more expensive, but might be
worth it.

Thanks,

DWP


The upscale Lutron dimmers are pretty good (around $30) Diva or better, with
more RFI suppression than usual.

I buy them for neighbors. In your own house, they're still audible but not
nearly as bad as the economy dimmers.

--
Ron Hardin


On the internet, nobody knows you're a jerk.

Telamon December 30th 06 06:41 PM

Dimmer Switches
 
In article .com,
"CelticDude" wrote:

Hello all,

My wife seems to be using the dimmer switch more in the winter just
when I'm listening to SW. The noise blanker doesn't seem to help. Are
there dimmer switches made that don't produce the "pleasant" buzz of
the standard one? Presumably it would be more expensive, but might be
worth it.



Replace the dimmer with an on/off switch. It's cheap and 100%
effective. Then find a bulb with the right brightness.

I have not looked for them but they used to have bulbs with three
wattage setting and a extra contact in the base requiring the right
type of lamp. Three choices should be all she needs.

--
Telamon
Ventura, California

Carter-k8vt December 30th 06 07:03 PM

Dimmer Switches
 
Ron Hardin wrote:


The upscale Lutron dimmers are pretty good (around $30) Diva or better, with
more RFI suppression than usual.


Interesting! Didn't know Lutron had an upscale ($30) version. The Lutron
I am waiting to put in was 15 bucks at Home Depot, about triple the cost
of the cheapies they sell.

Telamon December 30th 06 07:35 PM

Dimmer Switches
 
In article ,
Ron Hardin wrote:

CelticDude wrote:

Hello all,

My wife seems to be using the dimmer switch more in the winter just
when I'm listening to SW. The noise blanker doesn't seem to help. Are
there dimmer switches made that don't produce the "pleasant" buzz of
the standard one? Presumably it would be more expensive, but might be
worth it.

Thanks,

DWP


The upscale Lutron dimmers are pretty good (around $30) Diva or better, with
more RFI suppression than usual.

I buy them for neighbors. In your own house, they're still audible but not
nearly as bad as the economy dimmers.


I've tried them and they do reduce the RFI but the noise is still there.
The Lutron switches also get worse with age.

--
Telamon
Ventura, California

Bob Miller December 30th 06 08:48 PM

Dimmer Switches
 
On Sat, 30 Dec 2006 19:03:14 GMT, Carter-k8vt
wrote:

Ron Hardin wrote:


The upscale Lutron dimmers are pretty good (around $30) Diva or better, with
more RFI suppression than usual.


Interesting! Didn't know Lutron had an upscale ($30) version. The Lutron
I am waiting to put in was 15 bucks at Home Depot, about triple the cost
of the cheapies they sell.


Dumb question, do the dimmer contraptions make noise only when a light
is on, being dimmed, or do they also produce noise when the light is
off and/or not being dimmed.

I've got a few old dimmers that came with the house, and this may be
one of my noise sources.

bob
k5qwg

Carter-k8vt December 30th 06 09:26 PM

Dimmer Switches
 
Bob Miller wrote:
On Sat, 30 Dec 2006 19:03:14 GMT, Carter-k8vt
wrote:

Ron Hardin wrote:

The upscale Lutron dimmers are pretty good (around $30) Diva or better, with
more RFI suppression than usual.

Interesting! Didn't know Lutron had an upscale ($30) version. The Lutron
I am waiting to put in was 15 bucks at Home Depot, about triple the cost
of the cheapies they sell.


Dumb question, do the dimmer contraptions make noise only when a light
is on, being dimmed, or do they also produce noise when the light is
off and/or not being dimmed.


*Generally*, only when the light is being dimmed. The better switches
have a detent for full on and full off, thus bypassing the dimming
circuitry. They typically use a thyristor or SCR for the dimming
function and it works by varying the width (chopping off) part of the
sine wave. As you get away from the pure sine wave (full on/no dimming),
the waveform becomes more and more distorted and causes the interference.

I've got a few old dimmers that came with the house, and this may be
one of my noise sources.


There is a very good chance of that being a true statement. Easy enough
to check by just turning them all the way off and see if the noise goes
away.

Good luck and HNY...
73,
Carter
K8VT


Al December 31st 06 01:39 AM

Dimmer Switches
 
To check all your old (and otherwise) dimmers, get an AM portable, tune
between stations and sniff around outlets and switches with it. You will
find the culprit(s) fast!!!
Al

"Bob Miller" wrote in message
...
On Sat, 30 Dec 2006 19:03:14 GMT, Carter-k8vt
wrote:

Ron Hardin wrote:


The upscale Lutron dimmers are pretty good (around $30) Diva or better,
with
more RFI suppression than usual.


Interesting! Didn't know Lutron had an upscale ($30) version. The Lutron
I am waiting to put in was 15 bucks at Home Depot, about triple the cost
of the cheapies they sell.


Dumb question, do the dimmer contraptions make noise only when a light
is on, being dimmed, or do they also produce noise when the light is
off and/or not being dimmed.

I've got a few old dimmers that came with the house, and this may be
one of my noise sources.

bob
k5qwg




[email protected] December 31st 06 02:51 AM

Dimmer Switches
 
I use General Electric Reveal 60 watt light bulbs in my table lamps and
my floor lamps.Each of the ceiling lights hold three light bulbs.No
dimmer switches here.
cuhulin



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