surveyor

surveyor

Audioholic Chief
I need help!
I get hum in my amp when I turn on a flourescent light in my living room.
This is where my amp is located.
I made sure the satelite system is tied to earth ground outside.
I used a GB Instruments Receptacle Tester on the socket that my triplite noise/surge supresser is plugged into, and it tested good. In fact all the receptacles in the house tested good.
The amp is plugged into the triplite.

Does this also tell me that my house earth ground is correct?

Please help?

Thanks :confused:
 
B

bpape

Audioholic Chief
Flourescents are the Devil's work. I'd strongly recommend if possible to move that outlet or the light to a different circuit - preferably on the other 110V leg of your service.

You're beginning to see just how ineffective many of the 'noise filters' really are.
 
surveyor

surveyor

Audioholic Chief
Put Satan Behind Me

bpape said:
Flourescents are the Devil's work. I'd strongly recommend if possible to move that outlet or the light to a different circuit - preferably on the other 110V leg of your service.

You're beginning to see just how ineffective many of the 'noise filters' really are.
Yeah I need to ban the Flourescents from the living room.
It's really a bummer concerning the noise filter.
You know of course that normal (sane) people don't install 90 lb. noise sensitive amps in their living rooms!
Another lawsuit pending, Audioholics made me this way. We need to utilize Rip's Law Degree from the Caymen islands!!

Shurely, I won't call you Shirley. :D

Thanks
Surveyor
 
Last edited:
surveyor

surveyor

Audioholic Chief
Hum Problem Eliminated

surveyor said:
Yeah I need to ban the Flourescents from the living room.
It's really a bummer concerning the noise filter.
You know of course that normal (sane) people don't install 90 lb. noise sensitive amps in their living rooms!
Another lawsuit pending, Audioholics made me this way. We need to utilize Rip's Law Degree from the Caymen islands!!

Shurely, I won't call you Shirley. :D

Thanks
Surveyor
I have eliminated the hum! :)
I had a ground loop problem.
I have satellite TV, and I used to have cable TV.
Naturally being frugal, I'm using the cable for both.
The old cable TV and the newer satellite cable were both tied to earth ground outside the house in different locations. Thus there was a difference in resistance resulting in induced hum (potential difference).
I removed each ground, one at a time, and then checked to see if the hum was still there. It turns out that the satellite installer had tied earth ground to the 2 inch pipe that my house electrical meter is mounted on. Once the connection from the 2 inch pipe was removed, so was the ground loop hum!
Also, the chasis hum was removed by placing that satan like flourescent light on another circuit. Why because the ballast consumes a lot of voltage, thus starving the amp causing chasis hum.
Cheers :)
 
B

bpape

Audioholic Chief
Good deal. Satellite systems (and some installers) are great for that. Ground potential is a nasty little thing that can be hard to trace down. Glad it worked out for you.
 
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