Stereomour [resolved]

[rockdrummer]

Hi , so everything tested out okay on my freshly finished original stereomour , finally got to looking it up after it sat in place for the week on the rack.
I notice the 12at7 has a slight cloud-like look inside the top of the glass. Then I notice a very slight crack across a few pins in the bottom.  The tube warms but does not glow. There is a slight hum in both channels that isn't affected by volume changes. I will post the original test numbers later.

If the tube is bad, should I wait to get a new one before I do more voltage tests?
Thanks,
Ben

[Doc B.]

Yes, that tube is broken and dead. Sounds like it may have been stressed when pushed into the socket.

[rockdrummer]

Thanks for the info Doc. I'm anxious to get one and guitar center has groove tube 12at7 in stock. Anyone suggest not using one of those?
Ben

[Doc B.]

That should work.

[rockdrummer]

Ok great. Will report back!

[rockdrummer]

There we go! Super quiet, dynamic as all get-out. Lots of tweaking and messing with placement, then comparing to adding in the quickie. Now for lots of listening!
Thanks again Bottlehead.
Ben