Tubes on Sun Audio SV2A3


Dear users of the SV2A3,
The 6SN7 on this amp is the 6SN7GT. According to the tube table, 6SN7 isn't a subtitle of the 6SN7GT, but have you tried? Also, the 5692?
The rectifier is 5U4g and I know 5AR4 is the subtitle, did anyone try using 5AR4 on this amp?
Thanks.
eugeneli
I used Mullard GZ37 and Sophia 274B as rectifiers with good results. I was most happy with 5U4G. I think it was a NOS Ken-Rad. I had also used Phillips, RCA, and Sylvania 6SN7's with good results. The best thing that I tried with that amp was good NOS RCA 2A3's. The Sophia 2A3 globe mesh tubes also were nice.