(...) It looks like one. Does it need to run lengthwise in the track bed our could it run width wise. I'm just thinking you could probably hollow out a couple of plates and hide the sensor bulb completely. (...) While I don't have a better (...) (18 years ago, 19-Oct-06, to lugnet.org.ca.rtltoronto)
(...) It is--two metal leaves inside a vacuum (supposedly) (...) I'm finding that the sensor doesn't react to the magnet until the magnet gets close to eitehr end--so the sensor has to be pretty much centered between the rails for the magnet to pass (...) (18 years ago, 19-Oct-06, to lugnet.org.ca.rtltoronto)
