Tube going bad? Bad Cat Cub... Which one? Refresh my memory...

[Tallhorses]

Tube going bad? Which one? Refresh my memory...

This happened to me once before and I'm racking my brain trying to figure out which tube is going bad. When my amp is on and idle I hear this intermittent white noise shhhh shh shhhh shhhs etc. Rectifier? Power Tube or pre amp... all bad news because they're all fairly recent NOS acquisitions.

[Tallhorses]

Wouldn't you know the tube that went bad was one of the current production JJ's (ECC 83S) used for reverb. Just ordered some Mullard 12AT7's from KCA yesterday to replace these...good timing.

[Blue Strat]

Damn those noisy tubes ;)