My tube integrated's been up and running since repair, and it sounds as good as the day it arrived. Now, it's time to play with different tubes. It has stock generic tubes consisting of four KT88s, two 6N6s, and two 6N11.
I'm thinking about changing pre-amp tubes, and I believe these model numbers are bit misleading.

I have read that 6N6 are actually 6N6P. If that is correct, they can be replaced with 12BH7/5687. Although 5687 tubes look significantly shorter. Also, I have read that 5687 can be replaced with ECC99/E182CC / 6840 / 6BL7. Are 6N6P tubes used for input stages?

Also, 6N11 are actually 6N1P, and should be replaced with 6DJ8/6922/ECC83,88. But, my stock tubes read CCCP XII-80 6H23N
Are 6N11 tubes used for an output stage?

If you guys can, pleased tell me if information above are correct/false.



Only replacement I can find for 6N6P is http://www.tubestore.com/ru-6h6p.html. If they can be swaped with other models, my options for 6N6P will increase dramatically.

I'm also thinking about playing with a different pair of 12AX7 for my phono pre-amp. So far I've narrowed it down to Sovtek 12AX7LPS, Tung-Sol 12AX7 new productions, and Electro Harmonix 12AX7 Gold Pin.

All of the information really hurts my head, but this gotta be the best part of playing with tube gears.

Please help me as much as you guys can.

Thanks.

-JRA