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Something I never considered when converting my '54 to 12 volts was the
horn. It seems to work ok, but for it to be correct should I install a
12 volt relay? A voltage reducer? Both? >>
In my article on converting in the last isue of THIS OLD TRUCK I recommend
finding a 12 volt horn from a later car or truck. A 12 v relay won't protect
the 6v horn, in fact it could hurt it by supplying a full 12v. ( a 12v relay
will protect the relay) The ceramic voltage reducers are good for about 4
amps each. a stock horn draws about 12 amps, so could could put 3 in parallel
and see how it sounds. If not loud enough, add more reducers in parallel.
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