Tube Noob needs some help.

[Bill@WelcomeHome]

Myles Rose at guitarampblueprinting dot com is the best resource for what tubes to use where in a guitar amp.

[maddnotez]

Originally Posted by Bill@WelcomeHome

Myles Rose at guitarampblueprinting dot com is the best resource for what tubes to use where in a guitar amp.

got the same answer on rig talk, is that you ???


I read it and it did help....

But it didnt specify my question.

Can you use any 12xx7 tube?? as long as it starts with 12 and end with 7?

[johnnyc]

Vacuum Tube Basics

In a sense yes you can use any 12xx7 but it will not be ideal. Although they are pin compatible the characteristics of the tubes will be different, their gain, internal resistance, optimal bias point, etc.

My advice would be if the amp calls for a 12ax7 then try different brands of 12ax7 first, you will get a lot of tonal variety this way