[Boatanchors] Replacing Meter Shunt Johnson Valiant

McDonald, J Douglas jdmcdona at illinois.edu
Wed Jul 18 09:03:19 EDT 2018


For applications not involving red-hot heating you can use Constantan wire in place of nichrome. Constantan is 
a copper-nickel alloy and is easily soldered to. You can get it in the necessary small diameters 
in reasonable quantities on Amazon or Ebay.  Its used in thermocouples. I've used it for ballasts 
in old Atwater-Kent "coffin" radios with great results.

-----Original Message-----


I replaced all the shunts in my Valiant.
They are not resistors...they are lengths of nichrome wire.
You can't solder very well to nichrome so it depends upon the builder
wrapping the wire around the lugs.
You can get good precision resistors from Mouser.


73

David Harmon
K6XYZ
Sperry, OK




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