Gents
I am repairing a Lionel TMCC - Jr Mikado with a puffer smoke unit (old type like in postwar).
6-38609
It calls for a smoke resistor: Ceramic 20 ohm 3 watt - 5%.
I have on hand a 30 ohm 3 watt ceramic.
Can I use this one?
On these engines, is the resistor simply powered by track power direct or is current to it controlled via TMCC?
Thank You again Gents!
Dave
Replies sorted oldest to newest
Hi Dave,
If you use a 30 OHM resistor, it will produce much less smoke, than a 20 OHM
Alex
Yep, it'll be totally anemic, get the 20 ohm resistor. 
Alex and John.......................Thank You for the replies.
Lionel site says the smoke resistors I need are "Unavailable".
Would you be able to recommend another source?
Thanks
Dave
Either one of these will work fine.
http://www.digikey.com/product...3FT20R0CT-ND/2075139
http://www.digikey.com/product...PC3W20.0CT-ND/596626
Shipping is very cheap First Class Mail, so small orders don't kill you. Buy several and have some in stock. 
Thank You John.
Much appreciated.
Dave
I would suggest you use a 27 Ohm wirewound element. I belive the part number is 6108040055 (going from memory here). At any rate if you enter "27 Ohm" in the parts page at Lionel.com it will come up.
Never been a fan of the ceramic elements in these smaller locos. Use the wirewound 27 Ohm unit, you'll be much happier with the results!
Mike
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