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Reply to "Great Northern railway"

Gene,

Still have lots of PM testing to due so those will be 'coming up'.

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Good idea from a fellow modeler.

(Using lights for circuit breakers CB)

Went to HD and got some 12 volt, 11 watt bulbs (for landscaping) and put them in series with each power supply.  I want to install DCC along with present DC and he recommended doing this. 

He said the bulb will take up the shortage and prevent hosing up the DCC should a  toggle get thrown the wrong way.  I'm going to run either all DCC or DC on the mainline but don't want to do it in the yards (cost savings and a lot of hassles to install with yard and turntable).

bulb for shorts 01

 

Epoxied the bulb into some lite ply and put the bulb in series with the power.

Even without DCC, this works great on the DC system as the light comes on giving a visual indicator of a short versus waiting for the CB to 'pop'.

bulb for shorts 02

TA DA!

Put a screw driver across the tracks to test.

I had a minor in physics and, now that I think about it, I think I knew this trick but forgot!

(lots of brain cells have died in the last 60 years, or so).

 

bulb for shorts 03

 

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Last edited by samparfitt

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