Simon Dorn
Active member
Hi! Here's some info regarding the plate voltage, bias and tube brands used by Bogner in the Rev Blue and Twin Jet. I couldn't find it anywhere, so i asked them directly. This is what they replied:
"We use a signal generator with a scope and set for min crossover as you have all the factors at once and each set is usually a bit different, varies, even if it's the same brand.
Also depends how exact the innput AC voltage is set, aassuming it's exactly what your amp is built for, then at about 485-500VDC something like 34-36 mA.
Twin Jet with KT88 runs at 550VDC something like 44-46mA
Some tube brands might not withstand this, we use the Ruby KT88's and EL34's as well as JJ EL34's with no problems."
I think this might be useful for some, so i thought i share.
Regards and keep on rockin'!
Simon
"We use a signal generator with a scope and set for min crossover as you have all the factors at once and each set is usually a bit different, varies, even if it's the same brand.
Also depends how exact the innput AC voltage is set, aassuming it's exactly what your amp is built for, then at about 485-500VDC something like 34-36 mA.
Twin Jet with KT88 runs at 550VDC something like 44-46mA
Some tube brands might not withstand this, we use the Ruby KT88's and EL34's as well as JJ EL34's with no problems."
I think this might be useful for some, so i thought i share.
Regards and keep on rockin'!
Simon