Hoffman Amplifiers Tube Amplifier Forum
Amp Stuff => Tube Amp Building - Tweaks - Repairs => Topic started by: 6v6Pin1 on September 13, 2015, 12:13:48 am
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I changed the rectifier in my stout which increased B+ quite a bit.
I measure 342v on the plate and 12v across the 130ohm cathode resistor.
((12 / 130) / 2) * (342 - 12) = 15.2 watts.
Am I going to blow up my EL84s? Should I be Ok running my amp like this? Which voltages should I be targeting in this amp?
The schematic on here for the stout project shows
((11.2 / 130) / 2) * (340 - 11.2) = 14.2 watts which I assume will work out because it's how the amp is designed, and I'm not too far over that.
Thank you.
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> Am I going to blow up my EL84s?
Not quickly.
And EL84 are cheap.
And so many guitar amps have over-abused so many EL84s that I bet most new-made guitar-market EL84s can stand it fine.