I am using exactly those ULTRON tubes from Buerklin in my SF Bassman 50 and so far so good. No arcs and no harshness yet.
Definitely russian tubes :
https://www.tubeampdoctor.com/en/6l6ga/ ... r-to-6l6gc
Search found 1 match
- Thu Apr 06, 2023 8:47 am
- Forum: Technical Discussion
- Topic: Anybody here knows ULTRON tubes (6L6)?
- Replies: 7
- Views: 1481