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Back in 2008 I installed TAS EOB boards, including Puff N Chuff boards, in two MTH TK locos.

Both locos are doing the same thing.  They will puff in time with the chuff and it looks great.  Then they sporadically smoke continuously for several seconds, then return to puffing.

During this time the chuffs operate as they should so I suspect a problem with the boards.

Do you agree?

Many Thanks

Ward

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Yesterday the one loco, RK Commodore Vanderbuilt, ran for over an hour without this issue.  Maybe when I ran them before the speed was on the edge of being able to see individual smoke puffs and continuous smoke puffs.  

The other loco has very flakey speed control. Will try one more time to get it to run more predictable. If that fails it is getting upgraded to ERR and GRJs smoke boards.

Hi John,   Took me a few days to try to fully understand the connections on the boards in my loco so I can ask more specific questions.

I've decided to concentrate on one loco, a MTH RK 0-8-0.  

It has the TAS EOB board which uses the striped tape on the flywheel and sensor board for cruise control. Through programing it also sets and triggers the chuff I believe.

The EOB board has a chuff output and power output. The chuff output goes to the current Puff N Chuff board, the power output goes to the smoke unit to allow on/off control of the smoke.

Can the Super-Chuffer connect to these same connections for power and chuff signal?

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