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Obvious answer to a ZW question?

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  • Member since
    June 2007
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Obvious answer to a ZW question?
Posted by Prairietype on Monday, January 7, 2013 9:15 AM

Since ZW transformers to do not have a fixed voltage terminal, how do you provide power to the fixed voltage plug of the Lionel switches?

 

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Posted by bfskinner on Monday, January 7, 2013 10:08 AM

Use either the B or C posts. In many cases this is an advantage because it allows you to adjust  the voltage setting to find the optimum power for your switch.

You don't need to run a connecting wire a U terminal because the switch is already connected to the outside track.

The shape of the fixed-voltage plug automatcally disconnects the power from the center rail, and then substitutes power from the transformer.

bf
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Posted by servoguy on Tuesday, January 8, 2013 8:08 PM

You can use a blue crimp on lug in place of the Lionel power plug.  The lugs are cheaper and easier to find and stay on better.  Some of the 022 replacement switches have slightly larger pin diameter for the fixed voltage plug, and the blue lug doesn't work. 

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Posted by cwburfle on Wednesday, January 9, 2013 6:04 AM

I take the cover off the switch motor, slip a piece of tubing over the pin, and solder a pigtail to the side that goes to the switch machine and bulb. While I am in there, I put a small 1 amp diode in series with the bulb.

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Posted by Prairietype on Wednesday, January 9, 2013 8:06 AM

Thank you for the suggestion about using B and C posts.  As configured the two upper loops are about 100 feet all told and will not tax the power load of the ZW, and there will be only 5 switches and a few signal type accessories installed on this section.  I kind of like the idea of adjusting  the voltage on the plugs in the wayt you suggest.

Prairietype

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Posted by Prairietype on Wednesday, January 9, 2013 8:08 AM

Thank you for the suggestion about using blue crimps.  We use these for a a variety of connections, but have not used them on the switches; as it is we have about three dozen voltage plugs of both types.

Prairietyoe.

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Posted by ADCX Rob on Wednesday, January 9, 2013 4:00 PM

cwburfle
...While I am in there, I put a small 1 amp diode in series with the bulb.

Don't forget to alternate the polarity of the diodes so you have an even number(+/-) throughout the layout to balance the load on the power supply, ZW or otherwise.

Rob

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