Reply to "Unable to activate Williams True Blast Horns using old Lionel ZW transformer"

Steve TylerOGR Forum Member SUPPORTING MEMBERDIGITAL SUBSCRIBER

@Vernon Barry posted:
Replace the whistle diode rectifier disk with a modern silicon or even a zener diode.
Repeat of links posted earler regarding whistle diode upgrade from original copper oxide disk type.
https://ogrforum.ogaugerr.com/...er-diode-replacement
https://ogrforum.ogaugerr.com/...w-whistle-diode-help
Or use an external whistle or bell "box" between the transformer and the track. K-line made some good versions of them, Lionel made weak ones I don't recommend, and there are DIY options.
https://ogrforum.ogaugerr.com/...7#138541431176529927
K-line version with some Lionel version too and DIY https://ogrforum.ogaugerr.com/...d-or-horn-controller

Thanks, I'll check it out! thumb

11/13/231:52 AM

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