[Elecraft] Re: Question for K1 builders/owners (VFO Span)

[John Webster]

I agree with Mike's comments, based on working with
two K1's, "down to a T" (that is down to the felt washer :)

Happy times are coming . . .

73

John, N6JW

----- Original Message ----- 
From: Morrow, Michael A. <mamorrow@tva.gov>
To: <Makos327@worldnet.att.net>
Cc: <elecraft@mailman.qth.net>
Sent: Friday, July 25, 2003 9:36 AM
Subject: [Elecraft] Re: Question for K1 builders/owners (VFO Span)


> Lawrence Makoski wrote:
> 
> > ... did you opt for 80 Khz or 150 Khz?
> 
> You'll actually get something close to a 170 kHz
> span with the "150 kHz" option.
> 
> ITU region 1 and 3 hams probably shouldn't bother
> with the 170 kHz option (smaller 40m band).
> 
> But, there are three reasons for a ITU region 2 ham
> to choose the 170 kHz VFO span on the K1:
> 
> (1) Complete coverage of the 40m CW band.  There's
>     A fair amount of activity from 7.1 to 7.15 MHz.
>     Plus, you'll get the first 20 kHz of the phone
>     band.  Since the K1 receives in LSB mode, and 
>     voice is quite intelligible with the wide filter,
>     cross-mode QSOs are possible in an emergency.
> (2) Almost complete coverage of the 15m CW band.
> (3) Ability to copy 10 MHz WWV on the 30m band.
> 
> The 170 kHz option *was* touchy on early K1s.  In
> low parts of the band, tuning rates as high as 25
> kHz/turn resulted.  But the addition of R19 across
> the VFO pot wiper-to-high side made the tuning rate
> pretty linear throughout at about 17 kHz/turn.
> 
> Install a felt washer between the K1 panel and the
> back of the VFO knob to keep the knob from moving
> as you left go of it, and 170 kHz span will work
> great (washer helps even with the 80 kHz option).
> 
> 73,
> Mike / KK5F
> K1 #175 / KFL1-4 / KAT1 / KNB1
> 
> 
> 
> _______________________________________________
> Elecraft mailing list: Elecraft@mailman.qth.net
> You must be a list member to post to the list. 
> Postings must be plain text (no HTML or attachments). 
> See: http://mailman.qth.net/mailman/listinfo/elecraft
> Elecraft Web Page: http://www.elecraft.com
>