I live in a building. When someone's refrigerator compressor goes on or off, sometimes my audio amplifier pops.
How can you tell if it's in the 120VAC wires or is it RF in the air?
Wall plug electrical pop noise from switch, motor, fridge, etc...
- Janitor Tzap
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Re: Wall plug electrical pop noise from switch, motor, fridge, etc...
Hmmm................
Here is a good article on electric noise: http://ethanwiner.com/dimmers.html
It goes into the causes, and possible solutions.
Signed: Janitor Tzap
Here is a good article on electric noise: http://ethanwiner.com/dimmers.html
It goes into the causes, and possible solutions.
Signed: Janitor Tzap
Re: Wall plug electrical pop noise from switch, motor, fridge, etc...
The 'pop' happens with any wired input or when tuner is selected, or both ?
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Re: Wall plug electrical pop noise from switch, motor, fridge, etc...
The noise is unlikely to come on AC lines and get through the amplifier's power supply. So RF through the air. BUT, the AC lines are a transmit antenna. The audio connecting cables (if any) and circuits in the amplifier are the receive antenna.How can you tell if it's in the 120VAC wires or is it RF in the air?
The AC line of amplifier brings the noise inside the amplifier case. Making the RF distance (transmit to receive) very short. A RFI filter for the amplifier power cord may increase the distance enough to stop the noise.
Dale Y
Re: Wall plug electrical pop noise from switch, motor, fridge, etc...
Interesting takes.
I tried a simple experiment.
I have a cheap paper shredder. Whenever I shred anything, an enormous pop is sent to all amplifiers. I noticed that when I used any cheap surge protector, the pop is very well reduced. Varactor?
Of course, I cannot go around knocking on people's doors and telling them to go buy surge protectors.
I tried a simple experiment.
I have a cheap paper shredder. Whenever I shred anything, an enormous pop is sent to all amplifiers. I noticed that when I used any cheap surge protector, the pop is very well reduced. Varactor?
Of course, I cannot go around knocking on people's doors and telling them to go buy surge protectors.
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Re: Wall plug electrical pop noise from switch, motor, fridge, etc...
What is the amplifier plugged into?
Dale Y
- Janitor Tzap
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Re: Wall plug electrical pop noise from switch, motor, fridge, etc...
Heres a Sola Electric 63-13-150 Micro Computer Regulator 120V AC.
I've set these up in offices where they would have problems with noisy 120V AC.
It's on E-bay: https://www.ebay.com/itm/363955858597?c ... 1&mkcid=28
Signed: Janitor Tzap
I've set these up in offices where they would have problems with noisy 120V AC.
It's on E-bay: https://www.ebay.com/itm/363955858597?c ... 1&mkcid=28
Signed: Janitor Tzap
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Re: Wall plug electrical pop noise from switch, motor, fridge, etc...
I have a 6Kw Line tamer here that needs a home.. Was used in a school computer lab..
Re: Wall plug electrical pop noise from switch, motor, fridge, etc...
thanks all, but I already fixed it. varactor in powerstrip worked.
thanks again.
thanks again.
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Re: Wall plug electrical pop noise from switch, motor, fridge, etc...
I think you mean varistor, AKA MOV (Metal Oxide Varistor).
A varactor is a diode whose capacitance is adjustable by applied DC. Used in radio receivers.
Cheers,
A varactor is a diode whose capacitance is adjustable by applied DC. Used in radio receivers.
Cheers,
Dale Y
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