12at7 with 12ax7 tubes

My thanks to all. I guess my question then is what Gmuffley is stating. I don't want to change components and don't want any damage to boot. I'll check the links given by Rodman99999 and go from there.

A follow up with the 12at7 tubes: I have a pair of Tungsram tubes that I brought for a VTL pre that was sold. I kept the tubes so hence the post. Installed them this afternoon (replaced a pair of Tungsol) and WOW. No difference in gain to my ears and the sonics of the Tungsrams walk all over the Tungsols. The battle of the T's should be the title of this post. : ) Thanks again to all.

Sebrof let us know what you think when you get them installed.

I beg to differ. The links given do state that these tubes are interchangable. I have done this as mentioned in my setup with no ill effects. Of course Sebrof the decision is your call. Good listening.

Hi Rodman99999,

Thanks for your added comments. As stated I have replaced a pair of AX for a pair of AT's with no ill effects other than the lower gain. Tell me more about the 6201 tubes as I don't have knowledge about them. Will they work in place of the AX family?

Hi Rodman99999,

After I posted my question to you I checked on the 6201 tubes and did find the comaprison to the 12AT7. I went back to the Tungsol 12AX7's made for my pre and was pleased with what I heard. Though I thought the Tungsram 12AT7's had better detail it was the gain I missed as you know is less that the 12AX7's. I'm curious as to what the Sylvania would sound like in comparison to the Tungsram tubes I have. Know doubt the gain isssue would rear it's head but----. Have you compared the Sylvanias to any other 12AT7's? I'll be checking back later today.

No worries Rodman99999. Not to change the subject but I posted a thread in reference to a cap upgrade for my symphonies pre. Any suggestions?