Tubesworld is the extra that came with a huge collection that I bought.
Besides this, there are tubes that I buy from different sources and find in
flea markets and garage sails.
Recently I also started building Tube amplifiers.
I can choose from a large number of different tubes.
If you are interested, I can build an amplifier to your wishes.
Please drop me an e-mail.
For anything, please send me an e-mail. You´re not tied to a machine