John Curl's Blowtorch preamplifier part II

[simon7000]

Originally Posted by bcarso

I am trying of course to be diplomatic. However, after exhausting the basic topic in part I and part II, and continuing to reassure people who merely want to copy JC's design that he will not provide any further details, things have run fairly far afield --- although I still think, touching on areas of interest in general.

In this latest diversion one of the things lacking is disclosure of the test instrumentation details.


Brad Wood

No it is all in this thread and the Linear Audio article.

[bcarso]

Originally Posted by simon7000

No it is all in this thread and the Linear Audio article.

Which LA article? The first one you did was woefully lacking in details, as pointed out by Samuel Groner.

[simon7000]

Originally Posted by bcarso

Which LA article? The first one you did was woefully lacking in details, as pointed out by Samuel Groner.

Where was this?

[bcarso]

Wasn't it in an LTE to Linear Audio, in 2011? If it never appeared, my apologies.

[morinix]

Originally Posted by bcarso

I am trying of course to be diplomatic. However, after exhausting the basic topic in part I and part II, and continuing to reassure people who merely want to copy JC's design that he will not provide any further details, things have run fairly far afield --- although I still think, touching on areas of interest in general.

In this latest diversion one of the things lacking is disclosure of the test instrumentation details.


Brad Wood

How is Dan D. Lately?

[morinix]

Anyone seen this site?

[simon7000]

Originally Posted by bcarso

Wasn't it in an LTE to Linear Audio, in 2011? If it never appeared, my apologies.

It did and it was based on an error. (Jan in editing changed a symbol in the schematic which led him solo on a merry trail of errors.) My response corrected that and added a few details.

Read the article, it is quite complete. The technique is being used by two test equipment manufacturers and one resistor maker that I know about.

Next try my article on how to measure distortion in solder joints and audio interconnects.

[bcarso]

Originally Posted by simon7000

It did and it was based on an error. (Jan in editing changed a symbol in the schematic which led him solo on a merry trail of errors.) My response corrected that and added a few details.

Read the article, it is quite complete. The technique is being used by two test equipment manufacturers and one resistor maker that I know about.

Next try my article on how to measure distortion in solder joints and audio interconnects.

Yes just re-read them. Perhaps it would be a good idea to reference the letters exchange http://www.linearaudio.net/userfiles...e_1_LTE_ES.pdf when referencing the article.

[bcarso]

Originally Posted by morinix

How is Dan D. Lately?

See my PM to come.

Brad

[hitsware]

>apparently Golden Ears can "listen through"
>these loudspeaker distortions of thousands
>times greater magnitude

It doesn't take "golden ears"
Distortion does not mask distortion.
If a signal is run through 10 distortion producing
stages, (audibly) the differance between no stage
and after stage 1 is near equal to between stage
9 and stage 10 .............