02-01-2016, 09:19 PM
Doc, I think you are referring to the item in the schematic shown with the red arrow? If so that is the tap on the 35Z5G's heater filament, ie. pins 2, 3 and 7 on the tube diagram.
[Image: https://dl.dropboxusercontent.com/u/54621529/41-231.jpg][Image: https://dl.dropboxusercontent.com/u/54621529/35Z5.png]
unless I'm wrong....
[Image: https://dl.dropboxusercontent.com/u/54621529/41-231.jpg][Image: https://dl.dropboxusercontent.com/u/54621529/35Z5.png]
unless I'm wrong....