Author Topic: Momentary Pushbutton Tortoise Control  (Read 519 times)

Alan

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Momentary Pushbutton Tortoise Control
« on: September 12, 2018, 10:27:23 AM »
How about another useful circuit for your railroad? This one is super simple. It allows control of a Tortoise switch machine with a single momentary contact switch. Push once, the Tortoise moves to one position. Push again, the Tortoise moves to the opposite position. The circuit uses just a single latching relay to get the job done. Not only does it control the Tortoise, it also controls frog polarity and control panel indicators. The cool part is the circuit board is self-supporting on a Tortoise contact bar.

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Blog post: http://www.lkorailroad.com/tortoise-printed-circuit-boards/ There is a PCB mask file at the blog post.

Labeling so it is easy to install:

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As you can see I have replicated this circuit many times. It works great.

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« Last Edit: September 12, 2018, 10:30:08 AM by Alan »
Alan

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When I was a kid... no wait, I still do that. HO, 28x32, double deck, 1969, RailPro

atsfguy

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Re: Momentary Pushbutton Tortoise Control
« Reply #1 on: September 12, 2018, 01:32:25 PM »
Wow! You are one prolific, innovative fellow.
Cecil
Cecil Collum
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nodcc4me

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Re: Momentary Pushbutton Tortoise Control
« Reply #2 on: September 13, 2018, 10:15:57 AM »
Innovative indeed. And he produces professional grade videos as well.  ;)
Al

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Michael Larson

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Re: Momentary Pushbutton Tortoise Control
« Reply #3 on: September 13, 2018, 10:18:19 PM »
One other great feature is that you can put as many push buttons in parallel as you need to operate the tortoise from multiple panels/locations, as necessary.  Great job!

Michael
Michael Larson
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Bakersfield Division

TwinStar

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Re: Momentary Pushbutton Tortoise Control
« Reply #4 on: September 14, 2018, 01:36:45 PM »
One other great feature is that you can put as many push buttons in parallel as you need to operate the tortoise from multiple panels/locations, as necessary.  Great job!

Michael

I was about to ask this for suitability on a Free-mo module.  Thanks Michael.

Jacob Damron
Modeling late 1950's Dallas Union Terminal in Free-mo modules

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