home *** CD-ROM | disk | FTP | other *** search
- Newsgroups: rec.models.railroad
- Path: sparky!uunet!microsoft!hexnut!hanss
- From: hanss@microsoft.com (Hans Spiller)
- Subject: Re: Info about G Scale
- Message-ID: <1992Nov20.044318.28087@microsoft.com>
- Date: 20 Nov 92 04:43:18 GMT
- Organization: self (Although I work for Microsoft)
- References: <63950007@hpscit.sc.hp.com> <1992Nov13.165125.17153@b30.ingr.com>
- Lines: 27
-
- In article <63950007@hpscit.sc.hp.com> mcghee@hpscit.sc.hp.com wrote:
- >
- > According to the Handbook of Chemistry and Physics.
- > [stuff deleted] I do not
- > have numbers on nickel silver but here is a list other metels.
- >
- > METAL Microhoms per centimeter
- >
- > Silver 1.59 <----------------Best conductor
- > Copper 1.771
- > Gold 2.44
- > Aluminum 2.824
- > Brass 7.00
- > Nickel 7.80
- > Tin 11.5
- > Steel 11.9
- > Lead 22.00
- > German silver 33.00 (18% Nickel)
- >
-
- I'm pretty sure that "German Silver" is another name for what we're
- calling "Nickel Silver". This number suggests that you need to have
- feeders every, oh, 3,000 centimeters or so if you want to keep your
- losses due to resistance in the rails down to .1 ohm or less, I suspect
- you'd have a hard time detecting 1.0 ohm's effect on train performance,
- even with high tech instrumentation. 3,000 centimeters is about 100 feet.
- I don't think this is a problem, do you?
-