Check it out ! , 6L6 GC , 12AT7 PI and 12AX7 pre amp. 5U4 GB Rectifier. 484/483 on the plates, 416 screens and 44.5 negative bias, fixed bias. 150/147 on The 12AT7 plates and around 215/210 on The 12AX7 plates. I'm only using 3 half stages right now for the pre Amp. And I just have Volume Treble and Bass so far. But with the 1 Meg pots I get a lot of Adjustment. You can dial it in pretty good to the sound you want. I wanted to have A Rectifier tube and Vintage Iron's in it and They are 1960 Iron's from A Whirlitzer Organ. I built my own chassis and case for it. Cost me 60 bucks for a tig welder and I had to do some work cutting up work with the aluminum for the chassis but it is My own design and spec's. I laid everything out the way I wanted it to be. I will put a drawing with the pictures of it. I'm not completely done with it yet but I will finish it. Right now I am just playing it some and getting used to it. I have to be sure it is going to be dependable. It wasn't that cheap to build , but they are very expensive to buy new if they are hardwired with A tube rectifier. I grew up with hardwired tube amps in The 1960's. There's just something special about them. This is the third one I built with Old Iron's and I'm hoping it lasts longer than the other two did, they both Lost Their output transformers and I couldn't get the right one's Used for either one of them. One was a EL 34 Ultra Linear and I really liked that one. You can't find those kind of output transformers anymore. I think I kept it for almost 20 years looking for that transformer before I finally gave up on it. To me the amplifier is just as important as the guitar to playing , it's got to feel and sound right to me through the strings. Anyway check it out and let me know what you think. I just changed the negative bias E Caps tonight because I didn't have the right ones when I first built it. They were working okay but 65 years is a long time for E Caps. My conscience was telling me to change Them before I lost the negative bias and smoked the tubes. This is the first Guitar Amp I've had that actually sounds good with JJ output tubes. They sounded terrible in my Fender 60 Watt DeVille. I think that they couldn't handle The higher screen voltage Very well on The Fender , that's about the only real difference between the output of two amplifiers. I put a few drawings in for those interested. Have a great day !
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This is posted in the wrong sub category, but otherwise, nice build!
Curious about cold clippers on the first and third stages? So if the first stage clips the negative side, the cathode follower will keep the same phase, then the third stage clipper will clip the negative side again?
Looks like it should have some break up/distortion for sure.
Curious about cold clippers on the first and third stages? So if the first stage clips the negative side, the cathode follower will keep the same phase, then the third stage clipper will clip the negative side again?
Looks like it should have some break up/distortion for sure.