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Reply to "Changing resistors & Lionel smoke unit life"

1. I get mine from Digikey and knock the ceramic coating off them.  They're 2 watt wirewound resistors.

 

2. They work fine in puffers, I've put them in a few of them.

 

3. No, the Vision Line Genset has three smoke units, and they are driven by a smoke regulator.  You need to use the stock 8 ohm resistor in those.  You can replace the wick, take a look at enlarging the intake hole, etc. to improve the smoke.  FWIW, my NS one has three smoke units that work pretty well after replacing the wick.

 

Note that the scare talk about having flames with just a change from 27 ohms to 20 ohms is just that, scare talk.   You'd need a lot more than changing the power dissipation of the smoke resistor from the stock 3 watts to 4 watts with the 20 ohm resistor to have that happen.  The newer regulated smoke units, as well as the MTH smoke units, dissipate in excess of 5 watts in the smoke unit, and so far they don't catch fire.

Last edited by gunrunnerjohn

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