Paul:
I've revised my non-linear transformer page in two respects:
1. Added the plot you requested. (Almost at the bottom of the page)
2. Added square wave ringing data for four transformers, although I am
not at all convinced that square wave ringing is an appropriate figure
of merit for a transformer used in a narrowly bandwidth limited
communications receiver.
The page is:
http://www.cliftonlaboratories.com/non-linear_transformer_behavior.htm
Paul Christensen wrote:
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"
<[EMAIL PROTECTED]>
To: "'Elecraft'" <[email protected]>
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
_______________________________________________
Elecraft mailing list
Post to: [email protected]
You must be a subscriber to post to the list.
Subscriber Info (Addr. Change, sub, unsub etc.):
http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/subscribers.htm
Elecraft web page: http://www.elecraft.com
_______________________________________________
Elecraft mailing list
Post to: [email protected]
You must be a subscriber to post to the list.
Subscriber Info (Addr. Change, sub, unsub etc.):
http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/subscribers.htm
Elecraft web page: http://www.elecraft.com
_______________________________________________
Elecraft mailing list
Post to: [email protected]
You must be a subscriber to post to the list.
Subscriber Info (Addr. Change, sub, unsub etc.):
http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/subscribers.htm
Elecraft web page: http://www.elecraft.com
