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Re: (TV) OT: Tech Qs
- To: firstname.lastname@example.org
- Subject: Re: (TV) OT: Tech Qs
- From: "andy fekete" <email@example.com>
- Date: Tue, 25 Sep 2007 16:06:58 -0400
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Sorta yes, and yes, sorta.
1) WARNING: Be careful hooking up an independent ground wire! If your
equipment has a three-prong plug and you have a three-pronged
receptacle, you can reasonably assume no further grounding is needed.
If you are hooking up a turntable to an amp, most amps have a ground
screw/terminal on the back panel to which you can connect the green
ground wire from your turntable. Most -- but not all -- screws that
attach the dress plate to an AC outlet are grounded; the only way to
know for certain is to check it with an ohmmeter. If it isn't, yes
you'll have to shut the power off to the receptacle and rewire or
replace it -- but again, know what you are doing, as the amperage is
VERY lethal. Try to keep one hand in your pocket at all times.
2) If a piece of metal can be attracted by a magnet, it can conduct
electricity. That said, ALL metals conduct electricity.
On 9/25/07, Leo Casey <LeoCasey@comcast.net> wrote:
> 1) If I hook up my home hi-fi (stereo) and run a ground wire from my amp (or
> turntable!) to the little screw that is used to attach the cosmetic,
> rectangular-plate to the wall-electrical outlet(s), will this ground my amp
> (or turntable)?
> Or is the answer no, and I need to shut-off all the power in my house, and
> then remove the wall outlet receptacle-box and rewire my ground wire to the
> ground wire inside the wall-outlet box inside the wall?
> 2) Independent of (1) above but related:
> If a piece of metal (e.g., a screw or little bolt) is attracted to a magnet
> (e.g., refrigerator or 'toy'-magnet) can I conclude that this screw/bolt can
> conduct electricity?
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