After looking at the pictures I can say for sure that this tube is no good. I would suggest replacing both of them. They are not worth testing in a tube tester unless you're just curious how a defective tube tests.
They are a wonderful oscillator.
Burt, K6OQK
Burt I. Weiner Associates
Broadcast Technical Services
Glendale, California U.S.A.
biwa@...
K6OQK
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Burt I. Weiner Associates
Broadcast Technical Services
Glendale, CA 91201 U.S.A.
K6OQK
Burt K6OQK