jea48
Responses from jea48
| Two physical grounds?? Tjtrout20,The cold water pipe is part of the Grounding Electrode System. The key word is System, which includes the cold water pipe. Check 250.50 for description of GES. You need to go back to the book.... Only the first 5 feet from point of entra... | |
| Two physical grounds?? Tjtrout20,In Gs5556 defense he may live in an area were all branch circuits must be installed in conduit. I believe Chicago as well as New York City being two that come to mind. He may have just had a brain fart and forgot not everywhere in the US... | |
| Two physical grounds?? Try running a #14 awg to the outlet that your power conditioner is using, to a cold water pipe and clamp off to that. 07-07-11: Tjtrout20Tjtrout20,No longer an NEC approved method. Not since 1996 I believe. Too many plumbers were getting shocked o... | |
| Two physical grounds?? Gs5556,Metal boxes were used with old 2 wire NM sheathed cable. The metallic box is floating..... Even in the case of old BX the conductivity continuity of the armor/connectors would be poor at best.Jim | |
| Cassette Deck?? I have a Nakamichi 500 I bought new back in, I believe, 1976.It still works just fine. . | |
| When does a 5V4G/GZ32 have to be replaced? I do have schematics of my amp. In particular, unlike the Dynaco, in my case 5V4G has its own secondary that is used just for its filament, so there is no high potential there.06-21-11: MeisterflohIf you look at the data sheet for the 5V4 you will... | |
| When does a 5V4G/GZ32 have to be replaced? Meisterfloh,Get it tested or just buy a new one....It would seem to me if the tube were to short you could burn out the 5 volt filament winding or possibly the high voltage winding of the power transformer. The tube is by far the cheaper of the tw... | |
| Surge Suppression vrs. Lighting and Power Spikes I would bet most residential earth grounding electrodes are inadequate when it comes to lightning protection.If memory serves me right the maximum electrode to earth resistance of 5 ohms per IEEE. http://www.cpccorp.com/deep.htmhttp://www.erico.co... | |
| Surge Suppression vrs. Lighting and Power Spikes Problem with grounding is that it has to be done (to be legal and insured) with at least gauge 10 wire to ground rod with bends of no smaller radius than 6".06-13-11: Kijanki Kijanki,You are correct on the size of the wire. #10 awg copper or #8 AW... | |
| Surge Suppression vrs. Lighting and Power Spikes Check out the video on lightning, a little down the page.>http://science.howstuffworks.com/nature/natural-disasters/lightning.htm. | |
| Hum issue - driving me more crazy Mribob, how come my bedroom sat system has no ground hum;More than likely the associated equipment is two wire cord and plug. Is that correct?I switched out my Meridian 861 processor for a Marantz 7005 processor;(no hum before with same sat box an... | |
| Hum issue - driving me more crazy ...I've checked and made sure the dish is grounded properly;05-31-11: MribobMribob,Properly.... Please explain.jim | |
| Hum issue - driving me more crazy Ozzy,I don't think the Iso-Max VRD-1FF will work on a SAT dishsystem. | |
| Hum issue - driving me more crazy "Bringing the IC to the right amp TO ABOVE the floor-> RESOLVES NOISE. In my unknowing frog brain, this implies something is inducing noise in the right sided IC (when under the floor - down about 12-16" is all though)."05-26-11: ImdocImdoc,*Ho... | |
| Hum issue - driving me more crazy But there is constant low level hum - right side only EVEN with preamp and XOVER turned off.I agree with Gs5556. Try some ground cheaters.Just because you turned off the preamp and xover that would not break the ground loop current path through th... |