• WARNING: Tube/Valve amplifiers use potentially LETHAL HIGH VOLTAGES.
    Building, troubleshooting and testing of these amplifiers should only be
    performed by someone who is thoroughly familiar with
    the safety precautions around high voltages.

All 6EA7 amplifier

icon1.gif
All 6EA7 amplifier
What do you think about it?



I think you should make time now to build the circuit with the corrections recommended in this thread, Then let us know the performance results.🙂
 
icon1.gif
All 6EA7 amplifier
What do you think about it?



I think you should make time now to build the circuit with the corrections recommended in this thread, Then let us know the performance results.🙂


As I build them all, also because it is my intention to open a blog in which to put all Parallels projects and, before doing so, I have to test them ... there is so little literature on Web about the subject and Parallels can be one valid alternative to the many PP in circulation.
I do not understand, however, so you expect ... what I can get is to test the right functioning and at most tell you if I like each other more or less, but I doubt I can give you the certainty of being able to get the most out of a tube, or worse still, that one tube sounds better than another.
 
As I build them all, also because it is my intention to open a blog in which to put all Parallels projects and, before doing so, I have to test them ... there is so little literature on Web about the subject and Parallels can be one valid alternative to the many PP in circulation.
I do not understand, however, so you expect ... what I can get is to test the right functioning and at most tell you if I like each other more or less, but I doubt I can give you the certainty of being able to get the most out of a tube, or worse still, that one tube sounds better than another.


Do you have any photos & schematics of those you have already built to shew us.🙂
 
Before testing it I tried to do a simulation on Microcap ... the result was very disappointing: between the GE datasheet and the simulation there is a significant difference ... I doubt that I have spent a lot of time in vain. 😕
 

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