Didn't read all but a few that seemed to say something similar as I.
Something that is sometimes forgotten about tubes is, as a tube ages, they will lose their treble response over time.
Especially preamp tubes.
It happens slowly so you may not notice the change or if you do you just turn the...
The DC resistance of a pickup is kind of a lay term, because a pickup which is an induction device will vary in impedance along with the frequencies.
DC resistance is simply the resistance you would read with a Ohm meter.
The more wire wrapped around the core, the higher the DC resistance.
You should run 12-2 romex on 20 amp breakers, like a kitchen circuit but minus the GFI.
Place the receptacles about six foot apart.
I suppose if you ran the 12-2 through conduit (which is grounded) would be a good way to shield the power wires.
Having grown up playing in an orchestra, I have a hard time listening to anything out of tune.
But we always tuned by ear with the reference tone (A) coming from first chair violin.
And that violin was usually tuned to a piano or tuning fork.
Anybody ever notice how much Jimi Hendrix's guitar...
I would be more apt to say that if the tubes are new in a new amp, they will sound the worst when first used.
Tubes tend to lose their high frequency response first as they wear.
Maybe what we are hearing is just the tube wearing a bit at first then settling into what they will sound like from...
I agree that cover bands should try to match the recording so people attending can recognize the
song and dance to it.
I remember reading a story about Ronnie Van Zant, that he required the guitarists to play note for note
the same as the record.
He wanted to satisfy his fans with the best...
Up close to the fret with the capo.
If you put it in the middle between frets it will make the strings sharp.
Especially with jumbo frets.
Many different capos available these days.
If you have jumbo frets, it is even more important to have the capo near the upper fret.
I use the white boxes too for my NOS and lightly used tubes.
I have many more preamp tubes than power tubes so I only catalog my preamp tubes.
Then I mark them with the test results and assign a number to that box and tube.
So at a glance I can see the tube designation and if it is a short...
It's probably filament rattle.
But hearing it at idle is strange.
Take a known good preamp tube (12ax7?) and substitute it for each tube to see if you can pin it down.
What brand of tubes are you using?