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We are running Marx Steam engines,thus no whistle.Stole this idea off of you-tube.Get ya a battery powered air mattress pump.Wire it up to a wall wart of the correct size.Tape on a wooden whistle.Works great,hidden under the layout.Neat idea,lots of fun,for very little money.I guess I'm kinda blowing my own Whistle!!

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Last edited by Rusty H
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OGR Publishing, Inc., 1310 Eastside Centre Ct, Ste 6, Mountain Home, AR 72653
800-980-OGRR (6477)
www.ogaugerr.com

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