The tube should be still OK, just make sure that none of the bits are caught
up between the cathode and grid, I have a couple of 813's with the same
problem and they are still working fine for the last 2 years.

Steve h

"Roger and Ute Brown" wrote in message
...
I have an 833A tube which I will use for a special project. I notice,
however, that it seems to have very small flakes deposited inside the
envelope. From what I surmise, they apparently jarred loose from the
"getter." Has anyone run across this phenomena before - and more
importantly, could I expect the tube to function OK with these deposits?

Roger, KL7Q




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