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Voltage Drop
Doc has a garden railroad and others for advice:
“From the power supply on a garden railroad how many feet between connections to keep the voltage from dropping and the amperage going up. How often do you tap on to the tracks to maintain a good voltage along its full length.”
Garden rail enthusiasts might like to offer some tips.
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Doc,
I don’t know that much about outdoor model railroads but inside some folks run feeder wires every three feet or so but that sounds impractical to me for your issue.
A neat product you may want to consider is something called Wire Glue from Anders Products. It looks like black toothpaste and you can use it as a solder substitute. Just apply some at each rail joint and allow it to dry over night. It will become quite hard so be sure that you don’t make any lumps of the product during its application that could derail your trains.
Here is the web site is where you can buy some:
http://www.andersproducts.com
Hope this helps,
Geof from the US