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LED turnout indicator

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  • Member since
    December 2004
  • From: Rimrock, Arizona
  • 11,251 posts
LED turnout indicator
Posted by SpaceMouse on Thursday, February 1, 2018 9:12 AM

I'm thinking of using LED lights to indicate when staging turnouts are set on the diverging track. It's kind of overkill, but as I use the lever-type turnout control and I can see the position, but I'd like a red light to get my attention. I have a 3V AC to DC power adapter I was thinking of using to power it. The plan is to solder 24 guage wire to the same track on both sides of the turnout so that the points complete the circuit. Am I missing something?

Chip

Building the Rock Ridge Railroad with the slowest construction crew west of the Pecos.

  • Member since
    January 2009
  • From: Bakersfield, CA 93308
  • 6,526 posts
Posted by RR_Mel on Thursday, February 1, 2018 9:45 AM

OOPS!  That would work with no power in the rails.
 
 
 
 
Mel
 
Modeling the early to mid 1950s SP in HO scale since 1951
  
 
My Model Railroad   
 
Bakersfield, California
 
I'm beginning to realize that aging is not for wimps.
 
  • Member since
    December 2004
  • From: Rimrock, Arizona
  • 11,251 posts
Posted by SpaceMouse on Thursday, February 1, 2018 9:54 AM

RR_Mel
OOPS!  That would work with no power in the rails.

12V wouldn't be too good for the LED either.

Come to think of it, the lever pull has connectors for lights.

 

 

Chip

Building the Rock Ridge Railroad with the slowest construction crew west of the Pecos.

  • Member since
    December 2004
  • From: Pa.
  • 3,361 posts
Posted by DigitalGriffin on Thursday, February 1, 2018 1:51 PM

Chip,

Remind me, DCC or DC?  And what are you using for a switch mechanism?  Blue point DPDT?  Is the LED on the panel or on the layout as a drawf signal?

Don - Specializing in layout DC->DCC conversions

Modeling C&O transition era and steel industries There's Nothing Like Big Steam!

  • Member since
    December 2004
  • From: Rimrock, Arizona
  • 11,251 posts
Posted by SpaceMouse on Friday, February 2, 2018 9:45 AM

Remind me, DCC or DC?  And what are you using for a switch mechanism?  Blue point DPDT?  Is the LED on the panel or on the layout as a drawf signal?

 

DCC, and the mechanism is a cable pull by Humpyard.

 

The LED would be near the panel, so attaching it to the connectors on the lever itself would work. Theoretically I can tell if the switch is thrown by the lever position, but I'm hoping to idiot proof it by using a red light.

Chip

Building the Rock Ridge Railroad with the slowest construction crew west of the Pecos.

  • Member since
    December 2004
  • From: Pa.
  • 3,361 posts
Posted by DigitalGriffin on Friday, February 2, 2018 11:16 AM

On page 3, they have directions for powering a frog.  I would use a similar method, but have one of the whiskers also backfeed to the LED you wish to light.

http://humpyard.com/Instructions/INSTRSHT3.pdf

Don - Specializing in layout DC->DCC conversions

Modeling C&O transition era and steel industries There's Nothing Like Big Steam!

  • Member since
    January 2014
  • 1,500 posts
Posted by ROBERT PETRICK on Friday, February 2, 2018 11:25 AM

SpaceMouse

Theoretically I can tell if the switch is thrown by the lever position, but I'm hoping to idiot proof it by using a red light.

First off, love the levers. Very cool.

Second off, I should point out some wisdom of the ages . . . "A common mistake people make when trying to design something completely foolproof is to underestimate the ingenuity of complete fools."

Sorry. Couldn't resist. Good luck.

Robert

LINK to SNSR Blog


  • Member since
    January 2009
  • From: Bakersfield, CA 93308
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Posted by RR_Mel on Friday, February 2, 2018 11:32 AM

ROBERT PETRICK

 

 
SpaceMouse

Theoretically I can tell if the switch is thrown by the lever position, but I'm hoping to idiot proof it by using a red light.

 

 

First off, love the levers. Very cool.

Second off, I should point out some wisdom of the ages . . . "A common mistake people make when trying to design something completely foolproof is to underestimate the ingenuity of complete fools."

Sorry. Couldn't resist. Good luck.

Robert

 

You’ve been watching me Robert.
 
 
 
Mel
 
Modeling the early to mid 1950s SP in HO scale since 1951
 
My Model Railroad   
 
Bakersfield, California
 
I'm beginning to realize that aging is not for wimps.
 
  • Member since
    December 2004
  • From: Rimrock, Arizona
  • 11,251 posts
Posted by SpaceMouse on Friday, February 2, 2018 12:10 PM

ROBERT PETRICK
"A common mistake people make when trying to design something completely foolproof is to underestimate the ingenuity of complete fools."

You're right. I should probably add kill switches to my staging tracks, too.

Chip

Building the Rock Ridge Railroad with the slowest construction crew west of the Pecos.

  • Member since
    February 2002
  • From: Reading, PA
  • 30,002 posts
Posted by rrinker on Friday, February 2, 2018 4:47 PM

 Or the other version, everytime someone invents the next foolproof gadget, the world invents a better fool.

                               --Randy

 


Modeling the Reading Railroad in the 1950's

 

Visit my web site at www.readingeastpenn.com for construction updates, DCC Info, and more.

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