V11 is the
When making pin-to-ground resistance measurements, make SURE the radio is configured like this. To locate tubes, see this.
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 6 is no pin but is apparently used as a junction for who-knows-what
Radio #5 is 63,000 to ground, radio #4 is 62,000 to ground.
Pin to Radio Radio Radio Radio chassis #5 #4 #6 #7 1 4.5 0 0 0 2 .2 2 0 0 3 1,184,000 1,070,000 220,000 400,000 4 open drifting 400,000 215,000 5 1,860,000 618,000 270,000 165,000 6 - no pin 1200 219,000 7 0 0 0 .2 8 open 1,070,000 0 0
Pin to From the chassis docs 1 0 2 0 3 1,000,000 4 150,000 5 1,500,000 6 no pin 7 0.1 8 400,000
Tube pinout images are found on tdsl.duncanamps.com
For reference:
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Last modified: Monday, 1 Jun 2026