> Posted by: "Bill Lane" [EMAIL PROTECTED] wdlane
> Date: Wed Jul 23, 2008 6:28 am ((PDT))
>
> <...> The main thrust of my post was asking about using the ground
> throw without
> contacts by using the turnout points to carry the power. I am really
> trying
> for the K I S S method and avoid wiring contacts if possible.
Bill, read again Ed Kozlowsky's comment that he isolates the frog,
making it electrically dead. In that case you neither need contacts to
change frog polarity, nor do you need an oversize device to press the
point against the stock rail to ensure continuity.
The question remains where to cut the gaps to avoid stranding a
locomotive over an unpowered frog. The wheelbase of a 0-4-0T Dockside
is 7 feet (or 1-5/16 inch). As long as the frog gaps are closer than
that, a Dockside will not lose power. It won't be an issue for a
diesel model that picks up power through both trucks, even if the
wheelbase of its trucks is less than the length of the dead frog.
I myself use contacts to power my switch frogs. On my next switch I
think I'll try Ed's technique.
--
Bill Roberts, Receiver
San Antonio & Aransas Pass Railway Co.
* * * Notice to travelers * * *
If you are unsure of your destination, unable to remember why you are
in the station, or incapable of normal speech, our ticket agent will
be pleased to assist you.
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