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Gentlemen,

Last fall I purchased a TMCC upgrade chip through Royz trains in Michigan.  I was upgrading an older Williams Brass Daylight.  While isolating the tender frame was certainly a challenge, the upgrade went quite well overall.  2 things occurred however.

1.  While running the unit, the TMCC control would "drop" causing loss of control from the handheld, while the loco would continue on it's merry way down the track.  Is it possible that the tender was losing ground and connecting somewhere?

2.  A few weeks after running the loco, I lost the chuff.  Pushing on the reed switch caused an occasional connection.  Close examination of the reed switch showed that the glass encasement had been damaged.   I replaced the reed switch with one I happened to have, but I cannot make it work at all.  I removed the reed switch all together tonight.  Flipping the engine over and making all necessary connections, I tried to manually by-pass the reed switch by occasionally touching the wires together.  Nothing.  If it was just the reed switch, should it not have set off the chuff doing this?

Also see another post on using 2 TMCC base units on one layout.

Thanks,

Troy

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(1) Actually, the TMCC R2LC normally stops the motor if it loses the TMCC signal.  You'll also see the flickering headlight.  How about more information about the TMCC Upgrade Chip, whatever that is?

(2) Reed switches have widely different sensitivities.  It's quite possible that the replacement you tried is not sensitive enough for the spacing and the magnet strength.

All the issues with magnets and reed switches is why I designed the Chuff-Generator.  It provides a programmable chuff rate as fast or as slow as you like, and it's not dependent on magnets and reed switches.

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Last edited by gunrunnerjohn

Well, it's a tiny bit more involved that that, and it depends on exactly what the chuff switch is connected to.  Here's a diagram of the typical usage of the Chuff-Generator, it's usually used with the Super-Chuffer II.  The Super-Chuffer supplies the 5VDC power, and the Chuff-Generator is connected to the chuff input of the R2LC. 

Super-Chuffer II Installation, Smoke Intensity and Chuff-Generator

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  • Super-Chuffer II Installation, Smoke Intensity and Chuff-Generator

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