Just unpacked the new Fender Pro Junior a while ago...I was bummed...sounded like a motorboat. I tried swapping places with the two 12AX7's...made it worse. Hmmmm. Pulled out the "bad" one, moved the other back to the preamp, and put a 12AT7 in the splitter hole....MUCH better, more quiet, although not as quiet as it should be...so it's going back. They'll ship me another.
These tubes are labelled "GT" by the way...
Even with all the noise, I like this little amp. Should be just the right thing for the neighborhood jam. Hopefully the next one they send will be a bit quieter....
BTW, one of our regulars here at the B&B is bringing me several boxes full of NOS tubes. I'll be going through them....most of them will be from the 50's and 60's, as his dad shut down the radio/tv repair about 1970...been hiding all these years. He's supposed to be sending me a list...so I'll let you all know what we've got.