Symmetric CFA with EXICON 10 Watt Class A output.
The design gives dominant 2nd harmonic.
The design gives dominant 2nd harmonic.
THD is not the lowest.
0.015% mostly 2nd
But it should be on the limit where you can hear the amplifier singing.
0.015% mostly 2nd
But it should be on the limit where you can hear the amplifier singing.
Aside: It is common in electronics to differentiate between class A, A/B, B and whatever else. Audio relevant, I recommend distinguishing between SE, Push Pull and whatever else. When I read class A, I always have to check whether it is SE or PP to know what I can expect in terms of sound, audio.
Basically, the PP category would also have to be differentiated in order to differentiate audio in terms of: pp (non complementary transistors), complementary tppransistors (half-wave symmetrical), complementary transistors pp half-wave asymmetrical... Because this is also where the answers lie with regard to audio suitability.
My recommendation with best intentions;-)
I admire your dedication to low-complexity circuits - they are more suitable for audio than highly complex ones.!
Basically, the PP category would also have to be differentiated in order to differentiate audio in terms of: pp (non complementary transistors), complementary tppransistors (half-wave symmetrical), complementary transistors pp half-wave asymmetrical... Because this is also where the answers lie with regard to audio suitability.
My recommendation with best intentions;-)
I admire your dedication to low-complexity circuits - they are more suitable for audio than highly complex ones.!
Power supply.
Transformers 2x12VAC 100VA + 2x12VAC 100VA for dual mono
or one transformer
2x12VAC 200VA for stereo
I advise anyone who has "double mono" psus to connect them and listen to them. In other words, compare whether you can hear a difference between "separated" and "one" psu.
If you can hear a difference, then try to describe it.
And in the third step, see if there is a hierarchical suitability in terms of audio.
And if this experiment always produces the same result, even with different devices, then this experience translates into practice: one or many, different, psu in "audio"-)
If you can hear a difference, then try to describe it.
And in the third step, see if there is a hierarchical suitability in terms of audio.
And if this experiment always produces the same result, even with different devices, then this experience translates into practice: one or many, different, psu in "audio"-)
