[Elecraft] K3 related - non-linear audio transformer behavior

[Paul Christensen]

Jack:

With regard to the plots under "Comparisons and Conclusions," and also under 
"Frequency Response Compared,"  is it possible to change the source Z from 
600-ohms to 50-ohms and re-test?

It would be an interesting exercise to see if THD (at ~ 1V RMS) and the 
high-end frequency response of the Bourns transformer changes significantly. 
Tnx!

Paul, W9AC

----- Original Message ----- 
From: "Jack Smith" <jack.smith at cliftonlaboratories.com>
To: "'Elecraft'" <elecraft at mailman.qth.net>
Sent: Saturday, September 20, 2008 8:02 AM
Subject: [Elecraft] K3 related - non-linear audio transformer behavior


> I've spent the last two weeks measuring and analyzing non-linear behavior 
> of several audio transformers, focusing on the Tamura TTC-108 used as 
> isolation transformers in the K3.
>
> My data and analysis is now available at 
> http://www.cliftonlaboratories.com/non-linear_transformer_behavior.htm
>
>
> Jack K8ZOA
> www.cliftonlaboratories.com
>
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