I purchased the pre-built VTA ST-120 from Bob. (Thanks again Bob) It came with (3) National 5963/12au7 driver tubes, (4) Sovtek 6550 output tubes,
and the Tung-sol 5ar4/Gz34 rectifier. I did experience the Tung-sol rectifier tube flash and blow the fuse in my variac volt regulator. I do have high voltage
from my service at 125 volts. Running it at 117v, I replaced the fuse in the variac with a slow-blo. Since then I purchased a Gold lion U77/GZ34 rectifier, a Sovtek 5ar4 rectifier which Im running now. Both of these rectifiers are running fine now. I've also purchased the Mullard GZ-33 Great Britain tube. (Big bottle tube) like the way it looks,
pricey little sucker! This runs fine as well but it sounds like a baby's rattle when you gently shake it. One additional purchase was a set of Tung-Sol KT-120 output tubes that i'm currently running. Question is this. (sorry about the long winded explanation) One other variable is I'm currently in the process of getting a set of new Magnepan 1.7i's.
What tube complement would you go with from these choices and why (other than just saying what sounds best cause I kinda know that already).
Just looking for your opinions.