[Ispec2]

Any I2a3 owners doing any tube rolling?

[FullRangeMan]

Any I2a3 owners doing any tube rolling?

Excuse my silly ask, but what is tube rolling ? ? 

[Niteshade]

I'm glad to answer that:

Tube rolling refers to using different tubes with the same pinout within a circuit to possibly obtain different sonic results. For example, sometimes a 12AU7 and 12AX7 are interchangeable. 

On a more basic level, tube rolling can simply mean subbing a Ei 12AU7 for a vintage GE 12AU7.

More can be said about tube rolling- but with power tubes it can get more complex as several variables have to be watched.

[FullRangeMan]

I'm glad to answer that:

Thankyou Niteshade for this info, its really nice to be in contact with persons that have knowledge and are willing to share yours information.
Regards,

[FullRangeMan]

Then anyone know What tube I can use in the place of the output power 6AS7 tube in the AtmaSphere M60mk3 ? ? 

[Les Lammers]

There is a good book, "The Tube Substitution Handbook" it can tell you what direct replacements are for a given tube,.

6080's, 6520 and ECC230 are tubes you can substitutefor the 6AS7's.

[FullRangeMan]

There is a good book, "The Tube Substitution Handbook" it can tell you what direct replacements are for a given tube,.
6080's, 6520 and ECC230 are tubes you can substitutefor the 6AS7's.

Thankyou Les Lammers for this information.

[FullRangeMan]

There is a good book, "The Tube Substitution Handbook" it can tell you what direct replacements are for a given tube,.
6080's, 6520 and ECC230 are tubes you can substitutefor the 6AS7's.

Thankyou Les Lammers for this information.