Tube Amp Archive

Hello, thanks for the answers. I don't think the preamp is the biggest problem, but rather the phase inverter. The Junior Pro hits the phase inverter hard, hence its characteristic distortion. All the necessary changes to provide the correct amperage and voltage are taken into account. My problem l...

Hello, thanks for the answers. I don't think the preamp is the biggest problem, but rather the phase inverter. The Junior Pro hits the phase inverter hard, hence its characteristic distortion. All the necessary changes to provide the correct amperage and voltage are taken into account. My problem li...

What changes would need to be made to the basic schematic of a Fender Pro Junior to be able to use it with EL34 tubes and ensure the phase inverter supplies enough voltage for them to deliver their power? The power transformer I'll be using has a 325-0-325 secondary and 300mA. The transformer will b...

Hello, I went back. The budda twinmaster CLONE sound a bit small and congested as many other 2xel84 cathode biased amps. I ended building a 19 watts. The project went from a 14 watts amp without master volume to a 19 watts with master. You can watch the first version in this youtube link: https://ww...

In my clones I use 250k log Alpha pots, but maybe the taper is a little abrupt and the amps goes from clean to ovedrive very fast...

Well, I need a softer transition from clean to overdrive and maybe a little less congestioned sound with maxed volume pot.

Best Regards.

Hello,
The fender Pro junior is one of my all time favourite amp.
I would like to know what changes fender put into the IV version. Anybody have a schematic or components values with the changes?

Best Regards!

Hello, I'm going to build a Budda twinmaster type amp, with 2xel84. I will put fixed bias and adjust some components.
Anybody interested in this project?