mrpunkk,
Looks Good!
Even if a phase inverter does not have any 2nd harmonic distortion, if the output tubes signals are not perfectly matched, then they can create 2nd harmonic distortion.
When you have nothing else to do, try disconnecting C5 from the cathodes of the output tubes, and run the distortion test again.
Looking at your graph, I would not be concerned.
Just sit back, Listen, and Enjoy the music.
Looks Good!
Even if a phase inverter does not have any 2nd harmonic distortion, if the output tubes signals are not perfectly matched, then they can create 2nd harmonic distortion.
When you have nothing else to do, try disconnecting C5 from the cathodes of the output tubes, and run the distortion test again.
Looking at your graph, I would not be concerned.
Just sit back, Listen, and Enjoy the music.
I have been listening to the amplifier these days with the modifications I made, and I find it a little louder, it seems that now it has a little more gain, the volumes that I used to listen to before are now a little high, I hope what I hear is not noise .
What do you think??
Do you share your designs, 6a3sUMMER??
What do you think??
Do you share your designs, 6a3sUMMER??
mrpunkk,
I have put a few of my designs/builds on Tubes/Valves.
All are low to medium power.
I usualy do Near-Field listening, about 2-1/2 feet from the loudspeaker.
My latest design are Balanced Amplifier Mono Blocks. Currently using a Marantz CD player with XLR outputs, and Proac Tablette 2000 Signature version.
It has an amplifier picture, and a schematic of the amplifier; not the power supply, it is very similar to my other choke input power supplies.
I need to finish that thread by posting the measurement results.
I also have a 2 stage 12AY7 and 7591s push pull Mono-Block; and a 2 stage 12AY7 and 300B single ended Mono-Block.
I may have posted others, perhaps one of my Self Inverting push pull amplifiers, I can't remember.
I have put a few of my designs/builds on Tubes/Valves.
All are low to medium power.
I usualy do Near-Field listening, about 2-1/2 feet from the loudspeaker.
My latest design are Balanced Amplifier Mono Blocks. Currently using a Marantz CD player with XLR outputs, and Proac Tablette 2000 Signature version.
Low Power Balanced Mono-Block Tube Amplifier
Search by the title above.It has an amplifier picture, and a schematic of the amplifier; not the power supply, it is very similar to my other choke input power supplies.
I need to finish that thread by posting the measurement results.
I also have a 2 stage 12AY7 and 7591s push pull Mono-Block; and a 2 stage 12AY7 and 300B single ended Mono-Block.
I may have posted others, perhaps one of my Self Inverting push pull amplifiers, I can't remember.
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