• 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.

Uesugi 211 (vintage 1971)

Women perceive music holistically, they say " it sounds good" or " it sounds bad".
We man because we are emotionally retarded need to chop reality in digestible pieces, and observe different qualities of sound.
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Elac310, if your amplifier scores 8 out of 10, from the table above, you have a very good amplifier, you should be proud.
 
filenet,

Thanks for the Chart!
Very comprehensive, and logical.

My 79 year old memory is transitory, so I need to print out the chart for my next listening session.

If your amplifier has 10 out of 10 . . .
You are Either drunk; Or you are on drugs, Or both . . .
Wait a minute, there are Only 8 Arrows, I guess my meds are clouding my logic.
 
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I forgot that you are an engineer, you need exact instructions on how to use the table.
Each quality scores a maximum 10. You add them all and divide the number by the number of qualities(arithmetic average).
 
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filenet,

It was a 'Mean' thing to say I needed to 'Average'.
But that is just the 'Median' answer I get, when they all are equal.

All the above puns are intended.
And . . . the math lesson above is also intended.

According to my count, your chart has 29 specific sound characteristics.
8 out of 10 would be exactly 23.2 characteristics out of 29.
Accuracy in math, indeed.
According to my calculations, most vacuum tube amplifiers are more accurate than that.

Found on a cereal box:
9 out of 10 doctors recommend Shredded Mini Wheat Cereal.
My question: what does the 10th doctor know that the other 9 do not?

I really love everyone and their posts!
It keeps my brain active and sharp.

filenet,

You also said: Women perceive music holistically, they say " it sounds good" or " it sounds bad".
Does that mean my audio systems testing could be simplified if I got a wife?
What about the other new aspects of my life, simple or complex?

The 3 words a husband most fears to hear from his wife . . . "Notice anything Different?"
You are too late, and do not guess, you will be wrong.
 
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It will be a mathematical mess if you consider that the qualities aren't equal.
I know what interest you: will it sound like the Salvation Army Choir?(got it from one of your unedited messages to me).
I suggest to take a pet, 10 of 10 doctors reccomend it.
 
You mean on the test bench? No.
I relied on a lengthy discussion at the time with Mr Welter himself. The manufacturer designed them to support an amperage in the core higher than the 50-60 mA of the Uesugi circuit. The data from the page I retrieved refers to 120mA max, and welter measurements done @ 90mA.

I pushed my amp on some heavy electronic bass recordings to levels higher than I need and I found the sound not audibly distorted.