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Reply to "Postwar horn"

You should keep the topic in one thread so all info is one place, folks don't have to ask about things again and again.

The horn needs dc from a bat., a whistle relay only closes points between batt, and horn, like a switch.  

So is the relay chattering on/off/on  or  is the horn not getting good battery power thru the points?  Clean and sand/file between the points where the touch when closed.... lightly, straight, flat, level... they should be flat&smooth and touch level when closed. Little tits can build up on points over time as jumping electrons(etc) drag a few metal molecules across the air gap(s).

OGR Publishing, Inc., 1310 Eastside Centre Ct, Suite 6, Mountain Home, AR 72653
330-757-3020

www.ogaugerr.com
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