Reply to "Lionel O27 switches for reversing loop"

ADCX RobOGR Forum Member SUPPORTING MEMBERDIGITAL SUBSCRIBER

oldpa posted:
The mechanical part was straightforward but I don’t understand the use of the addition electrical parts. I have no problem doing the electrical work; I just don’t understand the reasoning behind it...

You have take a few moments to picture what will happen when you park a train on a 1122/1122E that has been modified for fixed voltage...

The longer you ponder the fact that the switch remains "on" or activated, the switch machines are not shutting off like they do with 022/711/112/112R/K-Line switches... those switch machine solenoids are heating up...

So what the capacitor circuit does is limit the current to the solenoids while the non-derailing circuit(s) are bridged/activated and allows for the discharge of the capacitor to activate the switch(after the capacitor charges while the switch is clear of any rolling stock). This charging needs the DC to accomplish.

2/6/179:35 PM

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