Mribob, VAC warranty is NOT transferrable and one of the reasons I bought mine new. The other is my preamp RARELY shows up on Agon.
I spoke with Kevin before rolling any tubes and changing the fuse. He gave me suggestions and offered his opinion. He is very supportive in my desire to experiment and always ask me to report anything interesting.
I buy all my rare NOS tubes from reputatable dealers. It's more expensive but have a peace of mine they are genuine and top quality. IMO, the only drawback in tube rolling is $$. Do your homework and if you don't like the changes, take them out.
I spoke with Kevin before rolling any tubes and changing the fuse. He gave me suggestions and offered his opinion. He is very supportive in my desire to experiment and always ask me to report anything interesting.
I buy all my rare NOS tubes from reputatable dealers. It's more expensive but have a peace of mine they are genuine and top quality. IMO, the only drawback in tube rolling is $$. Do your homework and if you don't like the changes, take them out.