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Total 8 documents matching your query.

1. Pos eart and tools (score: 1): Author: Unknown; Date: Thu, 15 Jul 1999 16:09:13 -0400charset="iso-8859-1"; I'm guessing Pos. earth had something to do with electrical practice current (no pun intended) when automobiles were being developed. I wonder if telegraphs were set up with positive earth? As far as; /html/triumphs/1999-07/msg00819.html (6,861 bytes)
2. Re: Pos eart and tools (score: 1): Author: Unknown; Date: Wed, 14 Jul 1999 15:47:47 -0500charset="iso-8859-1"; You may be on to something here, battery voltage on telephones (the non-ringing current) in North America is 48V DC positive ground. The ringing portion is ~90V AC superimposed on this.; /html/triumphs/1999-07/msg00825.html (7,423 bytes)
3. Re: Pos eart and tools (score: 1): Author: Unknown; Date: Thu, 15 Jul 1999 13:59:04 +1000; But if it were simply an arbitrary choice of positive earth, and there are no particular advantages in either arrangement, then why did we subsequently go to the trouble of changing to negative earth; /html/triumphs/1999-07/msg00859.html (7,129 bytes)
4. Re: Pos eart and tools (score: 1): Author: Unknown; Date: Thu, 15 Jul 1999 00:42:27 EDT; The standard is now negative earth because electrons flow from negative to positive and it is easier to visualize that when examining modern electrical circuits. The old "Current flow" theory doesn't; /html/triumphs/1999-07/msg00864.html (7,368 bytes)
5. RE:Pos eart and tools (score: 1): Author: Unknown; Date: Thu, 15 Jul 1999 20:27:20 -0400; Some selected Positive earth and some selected negative earth and the folks who selected negative earth had more marketing prowess and thus it became the defacto standard. But being a defacto standar; /html/triumphs/1999-07/msg00937.html (7,488 bytes)
6. RE:Pos eart and tools (score: 1): Author: Unknown; Date: Fri, 16 Jul 1999 17:24:00 -0400; that, the The fact that all cars should be the same is logical. The selection of negative earth over positive earth is the question. What did GM do? What did VW do? Renault? Fiat? So far I haven't h; /html/triumphs/1999-07/msg00983.html (7,914 bytes)
7. RE:Pos eart and tools (score: 1): Author: Unknown; Date: Fri, 16 Jul 1999 16:28:25 -0500; /html/triumphs/1999-07/msg00984.html (8,501 bytes)
8. RE:Pos eart and tools (score: 1): Author: Unknown; Date: Sat, 17 Jul 1999 04:34:32 -0400; radios And I think some of them run 24 volt systems. And here in the US some are set up with 120 Vac system to run the TV, microwave, refrig, and other touches of home away from home. But then these; /html/triumphs/1999-07/msg01002.html (7,291 bytes)

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