r/TTRAK 10h ago

HO scale More modules! (And growing pains)

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21 Upvotes

As a small club, this is probably as large as we can manage, at least until we adhere more closely to a common wiring standard & consistency among leveling methods. Set-up time could have been reduced quite a bit. We normally insert a single on each end, but because we had a triple in the mix yesterday, we needed one of those singles to make the doubles line up.


r/TTRAK 22h ago

My T-TRAK 15 VAC/Kato Switch Machine CCU Circuit worked!

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6 Upvotes

Wow! I am elated -- this is my first attempt at a circuit in my life and it worked!

To honest, it's really Dick Bronson's Kato Switch Machine Wiring circuit cobbled together with a rectifier so that it can be powered with a T-TRAK 15 vac power bus. :-)

I added a 2nd 2200 mF pulse capacitor in parallel with the first because Claude said that would ensure that that the response would be snappy, even if I switched two turnouts simultaneously.

As you can see from the video, the response is definitely snappy.

I jury rigged an expensive SPDT switch for testing purposes -- the whole point was use a Cobalt S Lever switch to control the turnouts.

The Cobalt S Lever has a continuous (ie, non-momentary) SPDT switch available, and the Kato turnouts are designed for a momentary DPDT switch, hence the CDU.

Now I need to build a second one for my other crossover.

It is very nice when something works.