Are these tubes compatible?

[mister_s]

I'm very new to the tube amplifier idea, and I own an amplifier that uses 12AU7 tubes. Now, I'm curious if it will be compatible with the 6C45PI tubes.

 

Does anyone know?

[Guest]

Go to headfi. I'll be shocked if anyone around here can answer this question.

[GzeroD]

Its not on the list of equivalents on tubeworld 

https://www.tubeworld.com/12au7.htm