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AC/HL · 1st Dec 2017, 8:44 pm

The valve pin is hollow, and the leadout wire from the valve bulb is threaded through and soldered at the bottom of the pin. You can see this if you look from below. This joint can become dry resulting in a dead heater.

1st Dec 2017, 8:44 pm	#16
AC/HL Dekatron Join Date: Nov 2003 Location: Heckmondwike, West Yorkshire, UK. Posts: 9,642	Re: Murphy A188C repair. The valve pin is hollow, and the leadout wire from the valve bulb is threaded through and soldered at the bottom of the pin. You can see this if you look from below. This joint can become dry resulting in a dead heater.