Changing Tubes ä Caution: When changing tubes be careful not to pull the wires off the thermistor. The thumbscrew must be completely removed before the thermistor can be lifted off the threaded rod.
Changing Tubesä Caution:When changing tubes be carefulnot to pull the wires off thethermistor. The thumbscrewmust be completelyremovedbefore the thermistorcan be lifted off thethreaded rod.