I built a 1959 clone about 5 years ago, upon completing the project I hated everything about it. Went through 5 sets of JJ el34 tubes in less than a year when the bias was set perfect and burned up an OT. Replaced the OT & switched to EH el34 and it's been stable but sounds like a $10 toy from walmart Today, I'm trying to figure out why it sounds like complete garbage. I've been checking the resistors on the turret board input resistors and all 4 are measuring 35k in circuit. Is this the problem or do I have to take them out of circuit to test? I find it hard to believe all 4 would drop to 35k from 68k but idk.