AudioResearch VTM-200


I have owned a VTM-200 but I have concerns about ampules. I need to know which brand has best harmony with VTM-200.

Thank You
Nicko
nickodavidoff
I think you mean tubes. ARC uses the 6550WE's made by Sovtek. The 6N1P are Russian as well. The 6AS7's are Sovtek, but many good American Military versions are also available.