Reply to "A Question About Lionel Smoke Regulators"

gunrunnerjohnOGR Forum Member SUPPORTING MEMBERDIGITAL SUBSCRIBER

Chuck Sartor posted:
Yes, that is correct Dave. When Lionel first released their scale NKP 2-8-4 around 2000-2002 They had a problem with the smoke units shutting down after a couple of minutes. They sent a memo back then to service stations to remove the shrink wrapping and mount and insulate the power regulator to the loco frame. This took care of the thermal shutdown.The smoke units worked fine after that.

And then they went right back to not heat-sinking the triac and the regulators fail regularly! You have to wonder what they were thinking! Feeding track power into that little triac and then feeding an 8 ohm resistor just begs for excessive heat!

5/26/1912:23 PM

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