Hello!
I modded my Uberschall Rev.2 for KT88.
First, I played very old practically dead tubes biased for 19 mA. It sounded FANTASTIC!!!
After that I bought 4 JJ KT88 and tech biased it for about 35mA. It sounds much worse. Less gain, on 60% it sounds like JCM800. I need to set gain about 75% to make it sound like with old tubes.
Then I bought 4 Electro-harmonics KT88. It still sounds not as good as it was. A lot of experienced guys said that KT88s need much more than 35mA.
Can somebody help me please?
I modded my Uberschall Rev.2 for KT88.
First, I played very old practically dead tubes biased for 19 mA. It sounded FANTASTIC!!!
After that I bought 4 JJ KT88 and tech biased it for about 35mA. It sounds much worse. Less gain, on 60% it sounds like JCM800. I need to set gain about 75% to make it sound like with old tubes.
Then I bought 4 Electro-harmonics KT88. It still sounds not as good as it was. A lot of experienced guys said that KT88s need much more than 35mA.
Can somebody help me please?