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So I have this cheap, LED clock...

This topic can be found at:
https://sigforum.com/eve/forums/a/tpc/f/320601935/m/5590004224

April 08, 2017, 09:36 PM
hudr
So I have this cheap, LED clock...
Should it be making an audible humming sound?
I don't have the best hearing, but this thing is louder than a lot of microwave ovens....
April 08, 2017, 09:47 PM
FiveFiveSixFan
All my LED clocks are silent. Is it just a clock or does it also have a radio? At times, I've accidentally managed to turn on the radio and if it's not tuned in to a station and the volume is rather low, it makes noise like you describe.
April 08, 2017, 11:34 PM
hudr
quote:
Originally posted by FiveFiveSixFan:
All my LED clocks are silent. Is it just a clock or does it also have a radio? At times, I've accidentally managed to turn on the radio and if it's not tuned in to a station and the volume is rather low, it makes noise like you describe.


Just clock/alarm.
Maybe it's a Decepticon.....
April 09, 2017, 12:11 AM
zoom6zoom
Humming? Try putting it an a talk radio station. Perhaps it forgot the words to the music.



I have my own style of humor. I call it Snarkasm.
April 09, 2017, 12:26 AM
Twist18
Is it in a briefcase? Did you get it from some kid named Ahmed? Big Grin
April 09, 2017, 06:51 AM
r0gue
might be the transformer in the power supply
April 09, 2017, 08:32 AM
MikeinNC
I have a radio/clock combo from circa 1979....

still use it for the alarm...

occasionally it hums loudly

I smack it on the top and it quits humming for a few months or so...



“You may beat me, but you will never win.” sigmonkey-2020

“ in my opinion, anything that we can do to trigger a potential aneurysm in a leftist is a good thing and worth doing” nhtagmember 2025
April 09, 2017, 08:35 AM
mbinky
quote:
Originally posted by hudr:
Should it be making an audible humming sound?


Is this for a school science project? Wink
April 09, 2017, 08:38 AM
RonJon
quote:
Originally posted by MikeinNC:
I have a radio/clock combo from circa 1979....

still use it for the alarm...

occasionally it hums loudly

I smack it on the top and it quits humming for a few months or so...


Replace the largest electrolytic capacitor in the power supply area with the same specs.

Voila! - No more hum! Smile
April 09, 2017, 10:34 AM
trapper189
quote:
Originally posted by hudr:
Should it be making an audible humming sound?
I don't have the best hearing, but this thing is louder than a lot of microwave ovens....


Does your microwave go off every morning when it's time to get up? Maybe it's time for new glasses to?