Preamp tube help... I got the pics YOU got the knowledge!

[konstantine RK]

Is this a Shuguang ? and what can someone tell me about this tube? It is clearly marked for a tested tube marked with a circled "1" on the bottom. Where in the preamp sections would this tube serve best?

I have two of these... both unmarked, one has a ''2'' on the bottom the other has a ''9"

Just want to know what I have here thanks!!!

 

[JCDenton6]

The first one is definitely a Shuguang , it's the usual cathode follower tube in v3, v4 of dual recto's. I especially dig the 12AX7B Shugaungs, higher gain and lower noise then the usual 12AX7A's :mrgreen: .

The second one looks like an Electro Harmonix, some like it in v1 of their heads.

 

[konstantine RK]

thanks! Ill try the Shuguang in V3 soon...