I think that the Westinghouse 12BZ7 is a winner! Thanks Mate! You are the bestest Marshall bro ever!
Well, I've been doing this long enough to know that there were only a couple of possibilities for the Raytheon to be acting up, microphonic tube or the amp didn't like a 12BZ7. Since I have played Marshalls with 12BZ7's, the logical choice was a microphonic tube.
It all worked out, as the Ebay seller is refunding my costs on the Raytheon and you got one of my nice Westinghouse tubes. I should have just sent you that one in the first place, as I knew it was good.
Have fun, but don't let it consume your life. It can be addictive and now that you have even more tubes, the combination of tube patterns can get mathematically staggering. Sounds to me like you already found a great combination.
Marty
