Automatic LGB turnout control circuit.

phils2um

Phil S
11 Sep 2015
1,374
405
Ann Arbor, Michigan
Country
United-States
Country flag
And you don't need electrical switches or reverse modules for the reverse loops! A dogbone with common inner rail. Double clever!
 

Zerogee

Clencher's Bogleman
25 Oct 2009
17,350
1,721
North Essex
Country flag
Great job, Scot! I know that in your case it's all dead-rail and thus a moot point, but am I right in thinking that this could just as easily be electrified if desired, with no polarity problems....?

Jon.
 

Rhinochugger

Retired Oik
27 Oct 2009
32,905
3,912
North West Norfolk
Country flag
Great job, Scot! I know that in your case it's all dead-rail and thus a moot point, but am I right in thinking that this could just as easily be electrified if desired, with no polarity problems....?

Jon.
I think you could be right - it takes a couple to seconds to get your head around it, but I'm sure, yes, it would work electrically :nod: :nod:
 

Zerogee

Clencher's Bogleman
25 Oct 2009
17,350
1,721
North Essex
Country flag
I think you could be right - it takes a couple to seconds to get your head around it, but I'm sure, yes, it would work electrically :nod: :nod:

Yes, the inner one of the three rails remains the inner rail all round the loop (including where they meet at the "V"), so if we say that is the -ve, then both outer rails are just continuations of the outer rail of the loop, call that the +ve.... no conflicts or shorts anywhere that I can see!

Of course, the one thing it DOESN'T do (that a reverse loop does) is to reverse the direction of the train - but that isn't the intention anyway.

Jon.
 

Rhinochugger

Retired Oik
27 Oct 2009
32,905
3,912
North West Norfolk
Country flag
Of course, the one thing it DOESN'T do (that a reverse loop does) is to reverse the direction of the train - but that isn't the intention anyway.

Jon.


Yes, that's the confusing bit when you're trying to think it out - draw it out and label the rails and its seeeemples :)
 

Derailed

Registered
12 Nov 2019
43
2
Lansing, KS
Country flag
Ah, the Zipper rail technique. Very cool!
 
  • Like
Reactions: 1 user