Posted by
Tom Mc on
Oct 13, 2004; 2:16am
URL: http://elecraft.85.s1.nabble.com/Question-about-K2-s-T7-windings-tp370877.html
Hi,
A recent post by Don, W3FPR mentioned that the winding of T7 in the K2 has
changed, apparently with K2 manual revision C.
I have built K2 s/n 1103 and used manual version B. My manual (ver. B)
states that the winding ratio should be 11:3. Don states that newer manuals
are stating that T7 should be 20:5.
Don's post also states that an additional 3 dB of gain should be
accomplished by this change.
Does 3dB of additional gain on the audio mean the same as 3dB on an
antenna system? Like double the output? That would seem to be pretty
significant.
Can anyone let me know if they have made this change and if they have
experienced the same results which Don says (Don also mentioned that he
hasn't had the chance to make this change in his Field Test K2).
Also, are there any other transformers in the K2 which should be re-wound
to effect an increase in gain, or for any other reason, for that matter.
Thanks in advance for your help
Tom McCulloch, WB2QDG
K2 s/n 1103
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