zaphod_phil wrote: ↑Wed 05/27/20 7:31 pm
And how is the amplifier going?
Don't forget we have the Guitar Tech Bench forum for guitar tech and modification discussions-
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zaphod_phil wrote: ↑Sat 05/16/20 3:36 pm
So please tell us how your amp sounds with its new 12AX7s
Thanks again for asking. The following is quoted from earlier, because I did not hear a response from you yet. I sorta figured it was missed. So here it is again. The struggle for better sound continues.
It helps, but,, I guess the real problem is that my power section is not really cooking yet. It's closer, and I really like the Mullards in all three spots, with a close second given to Genalex, with great feel and sensitivity. Like a brighter Mullard, really.
The Tung-Sols have the gain structure down really nice, but I don't like the tonal nature. Not enough blooming notes, and not warm enough.
The Mullard MU12AX7, was surprisingly slightly higher gain specs than the other version, the CV4004, because the CV4004 specified it's slightly higher gain, but the other one, did not mention higher gain, so I probably need to order some more of these to really tell which is the higher gain version.
I find the Mallards are the richest, the warmest but full bodied, and sounding with the most blooming notes, very nice. I still lack something, as my amp does not yet have singing sustain.
I also replaced the power tubes recently, when I got my amp working, so I don't know if they need biasing or not. I am guessing my previous power tubes, saturated and broke up a bit earlier, and that's why I feel like I should have more singing sustain.
I get more increased pick sensitivity and great pinched harmonics, from the Mullards and Gelalex. So I mostly miss the soaring overtones and singing sustain. Very controllable, not harsh. I'm probably missing that from the power section, because of the new Mullard EL34 tubes.
I figure I either need a Variac, or a decent power attenuator, or probably both! If only money was not a problem. @@