V11

V11 is the

When making pin-to-ground resistance measurements, make SURE the radio is configured like this. To locate tubes, see this.

Early Radio Resistance Measurements

Resistance measurements made with Simpson 260.
"Open" or "no pin" means the tube does not use the pin but it might have been used as a junction for other components.

		Pin to        Radio          Radio        Radio
		chassis         #5            #6           #7

		1               0             0            0

		2               0             0            0

		3              open          open         open

		4 - dead lug                              open

		5             60,000        72,000       50,000

		6 - dead lug

		7              0.2           0.2           .2

		8              0.3           0.8           .5

	

Late Radio Resistance Measurements

		Pin to       From the
		chassis        docs

		1               0

		2               0

		3           37,000

		4           dead lug

		5            60,000

		6           dead lug

		7              0.1

		8               0

	

Notes

Reference

Tube pinout images are found on tdsl.duncanamps.com

For reference:


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Last modified: Monday, 1 Jun 2026