Quote Originally Posted by poppachubby
They're for a Golden Tube SE-40. I've read that just about every conceivable tube has a sound that someone prefers.

I like the Tung Sol too Geoff. What are your thoughts on new vs NOS?
I wish I had some NOS to compare my re-issued to. From what I've heard you can pay quite a bit for NOS tubes, some even run into the thousands of $$$. With these pre-amp tubes not nearly so much, but your still going to pay a premium. What I can say for certain is that you want a matched pair for your amp. Tubes age, and if the original tube has a lot of hours on it the output will not match the replacement tube.

Also, your going to want to have the output tubes biased. I paid a tech to do my amp, but he showed me the correct procedure, so now I can do it myself. Nothing is going to affect the sound as mcuh as having the tubes in proper bias.