DAM Broken tube?


When putting the KT90 output tubes in my new Rogue Cronus Magnum, I heard something rattling around in one of them. The other three are quiet. Does that mean the tube is definitely bad and I should not power the amp up?

I wanted to have it up and running in a couple hours.

When I picked it up at UPS, they had the box standing on it's side despite arrows on the box showing it should be laid flat and fragile symbols. When I pointed it out they said "Oh we don't do that", referring to following handling instructions on boxes.
bajaed

Showing 1 response by chuck

Bajaed,

sometimes pieces of glass break in the the tubes. It does not mean that the tube is definitely bad. Do you see any physical damage to the tube structure? If you have access to a tube tester I would check it for shorts.