merlop
New member
Just wondering what pre amp tubes you guys like in your HERBERT and where would be the best place to get them.
Thanks for your time.
Thanks for your time.
RedB4Black
Well-known member
I like RFT in v1 and v2. They are NOS and go for $40 to $50 each though. Worth the cost is subjective, but I think it is. Tube Mongers or KCA NOS tubes has them. 9th gen Chinese in the rest - you can get them from Dougs tubes. 
merlop
New member
What are the stock preamp tubes in the Herbert?
I pulled one out and it was a RUBY 12ax7A
Is this correct?
I pulled one out and it was a RUBY 12ax7A
Is this correct?