Vibro not Fibro silly spell check! Need some help. This amp was given to me by my wife's stepfather 2 weeks ago. It worked perfectly until I went to use it this morning. Power light came on but there was no sound. Changed the patch cord and checked speaker connections, both were OK but still no sound. I noticed the 6V6GT and the 5Y3GT were not glowing. I swapped tubes from my '65 Champ (same tube values) still nothing. Took the covers off the 2 - 12 AX7's and both are glowing. This amp is totally original even has the ungrounded plug. I was thinking power transformer failure until I saw the 2 12AX7 were glowing. Any of you amp guys have ideas?