Replacement ammeter question

bookmaker

New member
I am working on converting my 65 7ECA from generator to alternator. Since the alternator puts out 50 amps, I need to replace the 30 amp ammeter. The current ammeter is a Stewart Warner. Does anyone have the requirements for a replacement? Univair carries what looks identical in 60 amp, but it is not TSO'd. Is that required for an ammeter?

Any help is appreciated.

Dale
 
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