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Re:ammeters and ammeter shunts

To: DANMAS@aol.com, triumphs@autox.team.net
Subject: Re:ammeters and ammeter shunts
From: Bud_Rolofson@nps.gov (Bud Rolofson)
Date: Fri, 26 Feb 1999 15:24:20 -0500
Thanks Dan

Great job as usual.  I believe a post from Randall Young was where I first saw
the shunt idea mentioned.

For those that might not get to Dan's website he suggested that one thing that
would improve upon the shunt idea would be;

 "If someone with a VERY precise ohmmeter would measure the meter resistance,
and then measure various wire sizes for resistance, or, taking another approach,
would do a series of experiments to derive the wire gauge, It would be a great
service to those of us want to retain the ammeter, yet swap to a larger
alternator."

I don't have  a precise ohmmeter, but hopefully someone on the list does and can
fill in the blanks for the rest of us.

Thanks again to Dan and Randall
Bud
71TR6 CC57365 (with a GM 63 amp alternator in need of a shunt)
71TR6 CC65446

____________________Reply Separator____________________
Subject:    ammeters and ammeter shunts
Author: DANMAS@aol.com
Date:       02/25/1999 6:29 PM


Listers,

Someone on this list suggested using a shunt to increase the range of ammeters
to allow the use of higher amperage alternators without having to lose the
ammeter function. Unfortunately, I missed the original post (you won't believe
how busy I've been of late  - especially for an old retired coot), so I don't
have the individual's name.

A couple of people have contacted me off list to ask about it, so I thought I
would put together one of my long winded dissertations on the subject, and
ammeters in general, using some material I had already put together, and post
it on the web.

Using a shunt is an excellent idea, but as usual, there are a couple of
"gotchas" to be aware of. The write-up can be found at:

http://members.aol.com/danmas2/ammeters.htm

Thanks,

Dan Masters,
Alcoa, TN

'71 TR6---------3000mile/year driver, fully restored
'71 TR6---------undergoing full restoration and Ford 5.0 V8 insertion - see:
                    http://members.aol.com/danmas/
'74 MGBGT---3000mile/year driver, original condition - slated for a V8 soon
'68 MGBGT---organ donor for the '74

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