Thurston,
From the description, the orange globes would be the ones I'd go for. I do have a pair of white-label Bugle Boys... And the one I sampled was really sensitive to microphonics, in fact I swapped them out because after a while it sounded like the ringing sound never completely faded away while my amp was on. The voskhod I have in now is a big improvement, though I'm not sure how it directly compares to the Sylvania I used a while back. So far, I've had better success with the mil-spec tubes, they seem better constructed so far.
From the description, the orange globes would be the ones I'd go for. I do have a pair of white-label Bugle Boys... And the one I sampled was really sensitive to microphonics, in fact I swapped them out because after a while it sounded like the ringing sound never completely faded away while my amp was on. The voskhod I have in now is a big improvement, though I'm not sure how it directly compares to the Sylvania I used a while back. So far, I've had better success with the mil-spec tubes, they seem better constructed so far.