Proper upgrade from Holo May KTE?

[Digital Buddha]

What came with it are
4 SHUGUANG 300Bs
1 SHUGUANG 274b
2 6n6p looks like russian nos

what should i try next?

 

[christoph]

What came with it are
4 SHUGUANG 300Bs
1 SHUGUANG 274b
2 6n6p looks like russian nos

what should i try next?

Do you need to go Balanced or can you go SE for the evaluation of tubes?

Where are you located?

Maybe another Lampi geek nearby could lend you a pair?

I love the KR RK 242 output tubes if your preamp/system can handle the high gain. If not, the KR RK PX25 are a sure bet.