To JoeCon again,
I just did some more reading, and being a newbie, I have no idea how one would go about setting up a switch for the different PT taps, and don't plan to myself..... but I did find out that
KF didn't recommend going too high on EL84's....here's some quotes:
"I build an EL84 powered amp called the Rocket that has a power transformer with two taps so that I can supply the tubes with either 315v or 370v. If I use the higher setting, I get more volume, more headroom and a tighter bottom, but the amp is less dynamic and gives weaker harmonics. If I use the lower voltage, I get better dynamics but a looser bottom."
And another...
"Amps that use EL84's normally run at lower plate voltages than other amps.....Many companies run EL84's at around 400v. That's too much voltage and destroys their tone, in my book. I guess some companies value maximum power and tightness over maximum tone, but it is a matter of taste. Mike, of Dr. Z amps, dropped the plate voltage of his prototype EL84 amp from 400v down to vintage Vox/Trainwreck levels. He then brought his amp down to the local music store and smoked every other EL84 amp on the floor."
I know that Vox PT's were 280v, so personally I don't think I'd enjoy any higher than that, but like he said, it's a matter of personal preference.
Hope this helps in some way.....(and I hope it's OK to quote stuff here on a post
![Embarassed :oops:](./images/smilies/icon_redface.gif)
)
Take Care,
Turbojunkie
First 25 years of playing, I never got along with EL84's...Now I think, WHAT THE HELL WAS WRONG WITH ME????