Power Tube Rating problem?

[guitarman32]

I purchased 6 Groove Tube 6l6s power tubes from musiciansfriend in the medium rating (4-7). Today I got them and noticed I had received the following: two Tubes that were rated 7, two that were rated 4, and two that were rated 6. My old ones were all rated at 5. Do they all have to be all rated the same number?

 

[guitarman32]

i talked to a friend and they said it shouldnt be a problem. but it sounds risky without it being all the same exact number. does anyone know anything about this before i return the tubes?

 

[coppa]

i suppose you could email mesa and ask

as long as each pair is matched in the amp maybe its ok

like 7 6 4 4 6 7 if that was a triple recto

making **** up....

ask mesa