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Re: humming CFL

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micky

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Jun 2, 2019, 6:10:50 PM6/2/19
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In alt.home.repair, on Mon, 3 Jun 2019 04:03:38 +1000, "Rod Speed"
<rod.sp...@gmail.com> wrote:

>
>
>"micky" <NONONO...@bigfoot.com> wrote in message
>news:uti7fet1r8bo8j76s...@4ax.com...
>> I've been listening to a weak FM radio station, on a radio, and 2 feet
>> away was a desk lamp. It used a CFL and I noticed static or some kind
>> of interference in the reception. It could be lessened by changing the
>> frequency a little, but the result was still less volume than when the
>> light was off.
>>
>> So I figured, LEDs! They won't make interference. Bought Ecosmart.
>> Then the radio hummed so loud I couldn't hear the station at all.
>>
>> I will probably go back to incandescent. Any other way to get rid of
>> the hum?
>
>The noise you are hearing is the high frequency ac it generates.
>
>You don't have to do leds that way, its easy to have a constant
>current linear supply. How easy it is to find something in the
>specs on ebay or amazon tho is harder to say but they do exist.

You've gotten too technical for me. Maybe people in the group I added
can tell me where to buy what you're suggesting.

Rod Speed

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Jun 2, 2019, 7:18:25 PM6/2/19
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"micky" <NONONO...@bigfoot.com> wrote in message
news:39i8fepibbfteglk7...@4ax.com...
Quite a few sold everywhere are like that.

I use Philips Hues which likely are fine but that
system is very expensive for just the one led light.

Peeler

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Jun 2, 2019, 7:47:12 PM6/2/19
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On Mon, 3 Jun 2019 09:18:13 +1000, cantankerous trolling geezer Rodent
Speed, the auto-contradicting senile sociopath, blabbered, again:


> I use Philips Hues

I told you already several times, you can shove your Philips Hues up yours,
senile Ozzie pest!

--
FredXX to Rot Speed:
"You are still an idiot and an embarrassment to your country. No wonder
we shipped the likes of you out of the British Isles. Perhaps stupidity
and criminality is inherited after all?"
Message-ID: <plbf76$gfl$1...@dont-email.me>

micky

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Jun 3, 2019, 2:19:01 PM6/3/19
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In alt.home.repair, on Mon, 3 Jun 2019 06:15:07 -0400, Biff Tannen
<biff....@127.0.0.1> wrote:

>On 6/2/19 9:18 AM, micky wrote:
>> I've been listening to a weak FM radio station, on a radio, and 2 feet
>> away was a desk lamp. It used a CFL and I noticed static or some kind
>> of interference in the reception. It could be lessened by changing the
>> frequency a little, but the result was still less volume than when the
>> light was off.
>>
>> So I figured, LEDs! They won't make interference. Bought Ecosmart.
>> Then the radio hummed so loud I couldn't hear the station at all.
>>
>> I will probably go back to incandescent. Any other way to get rid of
>> the hum?
>
>
>Probably expensive but if the lievertising is to be believed, these might fix your problem.
>
>https://www.geniecompany.com/garage-door-openers/accessories/led-light-bulb.aspx

It's $19/2 of them, at Home Depot and Amazon, and Amazon has one for
almost $10. Thanks. Expensive but a good idea.

Bob, there's one other bulb in the package. I'll try that

As I said, with the CFL the interference could be lessened by turing the
radio off frequency a little**, but with the first LED bulb, I turned
the tuning knob a half turn in each direction, from maybe 88 to 92 MHz
FM. and the hum was the same everywhere, twice as loud as the sound had
been. It's interesting that it interfered with FM reception, which is
less vulnerable than AM, but it appeears, not invulnerable.

**An advantage to analog tuning over digital tuning.

Rod Speed

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Jun 3, 2019, 3:43:40 PM6/3/19
to


"micky" <NONONO...@bigfoot.com> wrote in message
news:1moafep953ip7tia3...@4ax.com...
> In alt.home.repair, on Mon, 3 Jun 2019 06:15:07 -0400, Biff Tannen
> <biff....@127.0.0.1> wrote:
>
>>On 6/2/19 9:18 AM, micky wrote:
>>> I've been listening to a weak FM radio station, on a radio, and 2 feet
>>> away was a desk lamp. It used a CFL and I noticed static or some kind
>>> of interference in the reception. It could be lessened by changing the
>>> frequency a little, but the result was still less volume than when the
>>> light was off.
>>>
>>> So I figured, LEDs! They won't make interference. Bought Ecosmart.
>>> Then the radio hummed so loud I couldn't hear the station at all.
>>>
>>> I will probably go back to incandescent. Any other way to get rid of
>>> the hum?
>>
>>
>>Probably expensive but if the lievertising is to be believed, these might
>>fix your problem.
>>
>>https://www.geniecompany.com/garage-door-openers/accessories/led-light-bulb.aspx
>
> It's $19/2 of them, at Home Depot and Amazon, and Amazon has one for
> almost $10. Thanks. Expensive but a good idea.
>
> Bob, there's one other bulb in the package. I'll try that

> As I said, with the CFL the interference could be lessened
> by turing the radio off frequency a little**,

That's because it was a relatively weak harmonic of the chopping frequency.

> but with the first LED bulb, I turned the tuning knob a half turn in each
> direction, from maybe 88 to 92 MHz FM. and the hum was the same
> everywhere, twice as loud as the sound had been.

That's because the designer was stupid enough to
use a chopping frequency that's right in that band.

> It's interesting that it interfered with FM reception, which is
> less vulnerable than AM, but it appeears, not invulnerable.

Yeah, particularly with that powerful a signal.

Peeler

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Jun 3, 2019, 4:25:29 PM6/3/19
to
On Tue, 4 Jun 2019 05:43:29 +1000, cantankerous trolling geezer Rodent
Speed, the auto-contradicting senile sociopath, blabbered, again:


>> It's interesting that it interfered with FM reception, which is
>> less vulnerable than AM, but it appeears, not invulnerable.
>
> Yeah, particularly with that powerful a signal.

No shit, eh, senile wisenheimer? <tsk>

Bob F

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Jun 4, 2019, 12:27:34 AM6/4/19
to
On 6/3/2019 11:18 AM, micky wrote:
> In alt.home.repair, on Mon, 3 Jun 2019 06:15:07 -0400, Biff Tannen
> <biff....@127.0.0.1> wrote:
>
>> On 6/2/19 9:18 AM, micky wrote:
>>> I've been listening to a weak FM radio station, on a radio, and 2 feet
>>> away was a desk lamp. It used a CFL and I noticed static or some kind
>>> of interference in the reception. It could be lessened by changing the
>>> frequency a little, but the result was still less volume than when the
>>> light was off.
>>>
>>> So I figured, LEDs! They won't make interference. Bought Ecosmart.
>>> Then the radio hummed so loud I couldn't hear the station at all.
>>>
>>> I will probably go back to incandescent. Any other way to get rid of
>>> the hum?
>>
>>
>> Probably expensive but if the lievertising is to be believed, these might fix your problem.
>>
>> https://www.geniecompany.com/garage-door-openers/accessories/led-light-bulb.aspx
>
> It's $19/2 of them, at Home Depot and Amazon, and Amazon has one for
> almost $10. Thanks. Expensive but a good idea.
>
> Bob, there's one other bulb in the package. I'll try that

Another model or brand is more likely to make the needed difference.

devnull

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Jun 4, 2019, 6:22:41 AM6/4/19
to
Check with the local electric utility.  Most have a free obamabulb program for libtard sponges.

Mark Lloyd

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Jun 4, 2019, 12:08:30 PM6/4/19
to
On 6/3/19 1:18 PM, micky wrote:

[snip]

> As I said, with the CFL the interference could be lessened by turing the
> radio off frequency a little**, but with the first LED bulb, I turned
> the tuning knob a half turn in each direction, from maybe 88 to 92 MHz
> FM. and the hum was the same everywhere, twice as loud as the sound had
> been. It's interesting that it interfered with FM reception, which is
> less vulnerable than AM, but it appeears, not invulnerable.
>
> **An advantage to analog tuning over digital tuning.

In the eighties I had an old TV (non cable ready). I found that by
setting it to channel 7 and misadjusting the fine tuning, I could get
channel 22 (cable midband, frequency just below that of ch. 7).

BTW, you could get ch. 6 sound on an FM radio.

--
Mark Lloyd
http://notstupid.us/

"I refuse to be labeled immoral merely because I am godless." [Peter
Walker on alt.atheism]

danny burstein

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Jun 4, 2019, 12:13:23 PM6/4/19
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In <%HwJE.28435$A55....@fx33.iad> Mark Lloyd <n...@mail.invalid> writes:

>In the eighties I had an old TV (non cable ready). I found that by
>setting it to channel 7 and misadjusting the fine tuning, I could get
>channel 22 (cable midband, frequency just below that of ch. 7).

>BTW, you could get ch. 6 sound on an FM radio.

You still can (well, the analog channel 6). This is
used, even today, by a bunch of "radio stations" (in
quotes 'cuz, see below..) who are technically licensed
as low power analog tv channel 6 (which is still allowed)
but in reality are using that slot to give them
a decent range audio/radio signal at 87.7 FM.

Note that while the official FM (in the US) band
starts a bit higher, most - especially those with
tuning dials - will let you hear this one, too.

Info on a typical station:
https://en.wikipedia.org/wiki/WNYZ-LP

--
_____________________________________________________
Knowledge may be power, but communications is the key
dan...@panix.com
[to foil spammers, my address has been double rot-13 encoded]

micky

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Jun 4, 2019, 4:27:26 PM6/4/19
to
In sci.electronics.repair, on Tue, 4 Jun 2019 11:08:26 -0500, Mark Lloyd
<n...@mail.invalid> wrote:

>On 6/3/19 1:18 PM, micky wrote:
>
>[snip]
>
>> As I said, with the CFL the interference could be lessened by turing the
>> radio off frequency a little**, but with the first LED bulb, I turned
>> the tuning knob a half turn in each direction, from maybe 88 to 92 MHz
>> FM. and the hum was the same everywhere, twice as loud as the sound had
>> been. It's interesting that it interfered with FM reception, which is
>> less vulnerable than AM, but it appeears, not invulnerable.
>>
>> **An advantage to analog tuning over digital tuning.
>
>In the eighties I had an old TV (non cable ready). I found that by
>setting it to channel 7 and misadjusting the fine tuning, I could get
>channel 22 (cable midband, frequency just below that of ch. 7).
>
>BTW, you could get ch. 6 sound on an FM radio.

Wow.

Unrelated but you remind me, Our first TV was a Dumont, with magic eye
tuning. It had continuous tuning like a radio (both gross? and fine
tuning) and the channels 2 to 13 were marked in their approximate
location on the dial, 2 where 1 o'clock would be, and 13 where 11
o'clock would be. I think 2, 3, 4, and 5 were grouped together, then a
space and 6 and 7, then 8 to 13 in a group. Between 7 and 8 were the FM
radio stations, and a swich on the TV would turn off the picture so you
could listen to the radio without running the TV. Unfortunately there
were no FM stations in New Castle, Pa. or even Pittsburgh in 1953 or
1960, none in Indianapolis from 1960 to 64, none in Chicago afaik from
64 to 70, but by the time I got to NYC in '71, they had FM radio.
Unfortunately I didn't still have that television.

micky

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Jun 5, 2019, 10:47:05 PM6/5/19
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In alt.home.repair, on Mon, 3 Jun 2019 21:26:48 -0700, Bob F
You're right. I put the noisy LED bulb in the ceiling fixture and now
it's about 5 feet from the radio and doesn't interfere at all.

It's called "daylight" and at 100 eq. watts it gave a very strange
appearance to the room. I'll probably get used to it. They didn't
have anohter low-cost LED at HDepot and ... I'll probably get used to
it. After all, it's "daylight".

peterw...@gmail.com

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Jun 6, 2019, 7:33:11 AM6/6/19
to
On Wednesday, June 5, 2019 at 10:47:05 PM UTC-4, micky wrote:

> It's called "daylight" and at 100 eq. watts it gave a very strange
> appearance to the room. I'll probably get used to it. They didn't
> have anohter low-cost LED at HDepot and ... I'll probably get used to
> it. After all, it's "daylight".

"Daylight" is generally around 5000 - 6500 kelvin. With LED devices, the CRI (Color Rendering Index) for such a (cheap) lamp will be somewhere between 50 and 80, or in other words, pretty wretched. LED lamps with both a high CRI and a high K tend to be costly relative to the cheapies. Strange appearance, indeed.

Peter Wieck
Melrose Park, PA

Mark Lloyd

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Jun 6, 2019, 11:19:27 AM6/6/19
to
On 6/5/19 9:47 PM, micky wrote:

[snip]

> It's called "daylight" and at 100 eq. watts it gave a very strange
> appearance to the room. I'll probably get used to it. They didn't
> have anohter low-cost LED at HDepot and ... I'll probably get used to
> it. After all, it's "daylight".

I find the old "dirty yellow" bulbs looking worse and worse now that
real white is available.

--
Mark Lloyd
http://notstupid.us/

"Now just behold these miserable, blind, and senseless people." [Martin
Luther,"On the Jews and Their Lies",1543]

Rod Speed

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Jun 6, 2019, 3:15:28 PM6/6/19
to


"Mark Lloyd" <n...@mail.invalid> wrote in message
news:%9aKE.37664$Ky4....@fx08.iad...
> On 6/5/19 9:47 PM, micky wrote:
>
> [snip]
>
>> It's called "daylight" and at 100 eq. watts it gave a very strange
>> appearance to the room. I'll probably get used to it. They didn't
>> have anohter low-cost LED at HDepot and ... I'll probably get used to
>> it. After all, it's "daylight".
>
> I find the old "dirty yellow" bulbs looking worse and worse now that real
> white is available.

I did have that reaction initially when I installed the Philips Hue lights
right thru my house. Got the dirty yellow starter kit and hated how
yellow it was, even tho I mostly used PAR38 floods and spots inside
the house before that. So I got the fully color controlled bulbs for
the ones after the initial starter kit of 3 bulbs and used the yellow
ones in the bedroom, the room where I store all the beer I brew etc.

Don’t really notice the dirty yellow in the bedroom anymore even
tho it gets used every day. And I now how quite a few of what
Philips call white ambience which can be set to any white you like
but not any color you like like the most expensive bulbs can be.

Fox's Mercantile

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Jun 6, 2019, 3:43:18 PM6/6/19
to
I put up with the "not quite" white that yellows with age
CFLs and the not instant on simply because they made my
electric bill go way down
Now that LEDs are cheap, I buy them at Wal-Mart. Instant
on and something close to white again.


--
"I am a river to my people."
Jeff-1.0
WA6FWi
http:foxsmercantile.com

Peeler

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Jun 6, 2019, 3:57:03 PM6/6/19
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On Fri, 7 Jun 2019 05:15:15 +1000, cantankerous trolling geezer Rodent
Speed, the auto-contradicting senile sociopath, blabbered, again:


>
> I did have that reaction initially when I installed the Philips Hue

I told you already, and I will tell you again: you can shove your Philips
Hue up yours, senile Rodent!

--
Sqwertz to Rot Speed:
"This is just a hunch, but I'm betting you're kinda an argumentative
asshole.
MID: <ev1p6ml7ywd5$.d...@sqwertz.com>

Ralph Mowery

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Jun 6, 2019, 6:42:53 PM6/6/19
to
In article <c-2dnRyQQs9T8WTB...@giganews.com>,
jda...@att.net says...
> Now that LEDs are cheap, I buy them at Wal-Mart. Instant
> on and something close to white again.
>
>
>
>

Do you notice that some come on instantly and some seem to have about a
2 second delay. The ones I have with the delay do come on full
brightness as far as I can tell at the end of those 2 seconds.



Mark Lloyd

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Jun 7, 2019, 9:14:56 AM6/7/19
to
I had one strange CFL that actually changed color. It would come on
dirty yellow, and a few seconds later turned white.

--
Mark Lloyd
http://notstupid.us/

"Life after death" is an obvious contradiction, unless you're really
into "dynamic redefinition". The "life" that exists afterward COULDN'T
be the same one that just ended irreversibly by "death".
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