7jp4 bk 440 testing

[timmy]

I'm testing known tubes on a bk 440 which is not for these crts and the good ones do show hi and I can remove shorts. I have one tube that does work but seem to get dim from what it used to be and this was only using it to repair a set so it since got dim fast but testing this one it shows a short on the HK light is there a way to remove this short since I tried with the short remover on the tester but does not seem to remove it. This was a good tube and if it will come back if I can remove the short it would be good. How would I attempt to remove this short, would this be a charged cap discharging on certain pins, I don't know.