jea48

Responses from jea48

House Wiring Defect?
Receptacle-Circuit-Analyzer 
200-amp Breaker Panel Question
The purpose of the branch circuit overcurrent device, in this case a breaker, is to protect the branch circuit wire and electrical outlet, the receptacle, from being overloaded.It is not designed to protect your audio equipment. Your equipment is ... 
200-amp Breaker Panel Question
I didn't put my amps on 30 amp breakers yet as I only had 2-pole 30-amp breakers which would then mean they would be on both phases (since the 2-pole breaker is twice as wide). I am going to pick up two single-pole 30-amp breakers tonight........W... 
Help needed: bizarre voltage readings
Imagine my surprise when I found that one of the receptacles measured 122V between hot and neutral, 4V between ground and neutral, and 4V between ground and hot. HOW IS THIS EVEN POSSIBLE? If hot and neutral are 122V apart from each other, they si... 
Loud background noise: cables picking up RF?
09-14-08: DawgcatchingIs there any way I can check for a ground loop w/o buying equipment? If it comes to that, so be it, but is there any way I can test it? I tried grounding my preamp, with no change.You might try temporarily lifting all the saf... 
Loud background noise: cables picking up RF?
Describing the sound: I get a whistling sound when my CDP is engaged and I am on that input (probably some sort of DC leaking there)From this statement it sounds like you think the whistling sound is caused by the CDP. or possibly the ics used to ... 
Loud background noise: cables picking up RF?
09-14-08: MusicnoiseNo Jea48 you are incorrect - his speaker wire will not act as an antenna that causes transmitted RF to be heard through his speaker - that makes absolutely no sense - if that were the case he would be hearing RF all the time, w... 
Loud background noise: cables picking up RF?
You are not hearing transmitted RF through your speakers - you cannot hear RF and your speakers cannot reproduce it - outside the frequency range for both.His audio system can work like an antenna and receiver. And long speaker cables can work as ... 
Loud background noise: cables picking up RF?
You don't have to recognize the sounds for it to be RFI.True. There are many forms of RFI. But with that said do you think if his problem is RFI, is it being caused from the communication towers?An arcing from a loose electrical power connection c... 
Loud background noise: cables picking up RF?
I have a significant background noise problem in my system. At normal listening levels, I am getting static that is audible from 15 feet away, and also a whistling sound coming through the speakers from time to time.I don't think I have read where... 
How to disperse avail. amperage?
I'll let you know what my electrician says about the isolated grounding bar/from the I/G outlets. Thanks again.LissnrIt is a Myth that the earth has some mystical magical power that sucks RFI/EMI noise from an audio system.Though I do not advocat... 
Dedicated power
Isolated grounding type receptacles are used mainly in commercial and industrial facilities. Usually they are used for connected loads of sensitive electronic equipment where EMI/RFI noise may be present on electrical metallic conduit, metal wall ... 
Dedicated power
I've been told this is supposedly an acceptable practice but the I/G outlets must run their grounding wires to a separate isolated grounding bar and ultimately out to a buried grounding rod.>>>>>>>>>>>>>>&... 
How to disperse avail. amperage?
I would recommend "Lutron" Dimmers! 
How to disperse avail. amperage?
The overall [cable length] distance from main box to sub panel will be about 50'That's a far cry from 110' you posted earlier......If the run is only a total of 50' then #4awg copper should be fine.As for the separate ground...I'll ask my electric...