I bought their 274b mesh and it fell apart. I was pulling it out with two hands and the glass bulb sperated from the base the leads came out of the pin sockets with out breaking. Tube is few months old with 20 hours on it. I went on rave reviews and recommendation from Woo. Well Sophia won't helpe so Woo is going to fix it for $50. I would but have no clue which lead goes into each socket. If these are just FullMusic tubes better to buy direct. Obviously the process of picking the best tubes by some engineers didn't work out in my case.
