Reply to "Williams GE 70-ton Diesel Locomotive"

gunrunnerjohnOGR Forum Member SUPPORTING MEMBERDIGITAL SUBSCRIBER

I'd suspect the ZW and not the locomotive. The old PW transformers depend on significant current flowing to generate a DC offset for the whistle function. There are many upgrade mods with silicon diodes and/or Zener diodes to improve the whistle circuit for PW transformers.

3/12/209:58 AM

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