Biasing Tables For Common Power Tubes

[Rusan]

I recently ran across these charts that I'd nearly forgotten about, which I made about 20 years ago based on some graphs I'd found, that were blurry and barely legible.

I can't verify their accuracy, and they're of course not a substitute for properly plotting a load line, but they do provide a handy reference. With that in mind, I thought they might be useful to someone, so I decided to share them.

 

[Quayhog]

Thank you, I just found this while searching for something else. Did you do a spreasheet using 7591/7868 tubes? I seem to be using them a lot over the last few years.

 

[Rusan]

Sorry Quayhog, I sure didn't. The Excel docs you see in the pdf represent all the data I had on hand, in its entirety.