How hot do you Bias your Amps??

[Rocker68]

" I also think it’s a good idea to measure screen current because that can be an indicator a tube is getting worn or is suspect. The screen current tends to creep upward as a tube wears. "

Whenever I'm inside the chassis with a dmm checking things , looking for something wrong , I check and chart the values . Difference between the plate and screen , a changing value is a good indicator to note . Thanks for highlighting this tip .

 

[7704A]

If I measure something I want to measure it accurately.

Thought that might have been the angle you were coming from, and yeah I agree.

I also think it’s a good idea to measure screen current because that can be an indicator a tube is getting worn or is suspect. The screen current tends to creep upward as a tube wears.

'Cause it sags, right?