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Reply to "steam whistles"

They need AC for power, and a DC signal from the bell/whistle button on the transformer to trigger them.

They should work above 12 volts.

No on/off switch, just the bell/whistle button on the transformer.

 

Larry

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

www.ogaugerr.com
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