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Hello all. I am very new to restoring vacuum tube radios. When I look at a schematic for a vacuum tube, there seems to only have 4 wires going to it, when in reality, there are 4, 6, 8 etc, on the actual tube. Please forgive my lack of education at this point. Still learning. Thank you guys.
Topic starter
Posted : 08/06/2026 11:26 am
Hello, most of the time filament wires are not shown in the tube diagram at the schematic. They are shown in the power supply section. Many tubes have some of the pins with no connection also. If you can include some images of the schematics so that we can help further.
2.15.1.0
2.15.1.0
Posted : 08/06/2026 12:33 pm