[Elecraft] K1 tuning range
Rick Dettinger
k7mw at cmc.net
Sun Mar 26 14:05:03 EST 2006
Thanks to the list for the comments and suggestions on K1 tuning range.
Good idea Ralph. If you can fine tune just a little more, you will find
even more CW up to 7123 or so. 7120 khz plus or minus BC QRM is SKCC
suggested freq. and quite a bit of activity up there. SKCC is a group of
over 1700 CW operators who have extended straight key nite to always. Same
rules as SKN, i.e. mechanical keys only. I have thought about a 100 khz
tuning range going from 7025 khz to 7125 khz but that would involve a new
xtal in the premix circuit. I guess I will go for 125 khz. This gives
about 12 khz per rev. Not too bad, I think. 73 - Rick -
-- --- Original Message -----
From: "Ralph Tyrrell" <w1tf at yahoo.com>
To: <Elecraft at mailman.qth.net>
Sent: Friday, March 24, 2006 10:28 AM
Subject: Re: [Elecraft] K1 tuning range
> Rick:
> I have K1 #1423 which I build 3 years ago. I first
> went with the 150 KHz tuning, it was way to touchy and
> I changed it to 80 KHz.
> Lately I have wanted to work just above 7.1 MHz and I
> opened up the K1 and put a silver mica 22 pfd in
> parallel with C2. I put it on top of the board.
> I now get up to 7118 KHz and an finding quite a bit of
> CW above 7.1.
>
> The K1 is my only HF rig. A K2 sure would be nice.
>
> 73, Ty, W1TF
>
>
> Rick wrote . . . Has anyone gone from 80khz to 150khz
> and regretted the change? Rick - K7MW
>
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