TAD RT814 6L6WGC-STR. New version of our popular 6L6WGC-STR with beautiful brown baase. Somewhat smoother trebles, tighter bass,and more mid range. The 6L6WGC tube is very quiet and especially long lasting. The ruggediced mechanical construction as well as the extra heavy glass do make this tube the first choice especially for combos like Fender, Boogie, ENgl etc.