Steve,
All you need to do is tack an NPO capacitor in parallel with the 68 pF
C2 - try different values until you find the range that yo want.
After finding the range, then adjust the turns on L1 to place the lower
end of the range where you want it.
No other tuning should ge required, although
Hi! I've had an early (S/N) K1 since mid-2001; bought it already built from
the original owner, has 80kHz bandwidth. Am I correct I just need to change
C2 and re-peak the filter board to widen the range? Is tacking another cap
in parallel practical? I'm also considering just re-aligning the
I built my K1 awhile ago with a VFO range of 80 kHz, also a 4 band filter and 2
band filter.
With recent increase in QRM levels on 7030-7040+-, am considering expanding the
range to 150 kHz.
This will allow me to work the old Novice segment on 40M. Seems the only
change needed is the band
You really don't need to change the crystal, unless you want to receive WWV @
10 mHZ. It would be easier to leave the crystal as it is, in case you go
back.
As for the filters, if you leave them alone nothing will change on the band
segments you currently use. On 40 meters, you may want to peak
I really like the ability to get up higher and also like the fast
qsy ability that the wider range gives you. Some feel that its a bit
fiddly and you have to turn the knob a bit too finely but I honestly
kinda like the speed of the knob and I also like being able to pick up
WWV to verify my
Hi Curt,
I like the 150 kHz tuning range. Mine is actually 170 kHz, which, of
course, gives an average rate of 17 kHz per revolution with the 10
turn pot. I think this is still slower than the top rigs of my youth,
which we though was quite good. I don't remember hearing complaints
Mike Morrow wrote:
Larry wrote
I am building the K1 with the 4 band filter board. I am at the step
where I must decide which VFO range to choose, 150 kHz or 80 kHz.
I would like to hear from those who have built this receiver and why
they made the choice they did.
Larry,
I've used
conditions on 160.
73,
Sandy W5TVW
- Original Message -
From: Larry [EMAIL PROTECTED]
To: elecraft@mailman.qth.net
Sent: Friday, September 29, 2006 5:33 PM
Subject: [Elecraft] K1 VFO range
| I am building the K1 with the 4 band filter board. I am at the step
| where I must decide which VFO
I am building the K1 with the 4 band filter board. I am at the step
where I must decide which VFO range to choose, 150 kHz or 80 kHz. I am
new to HF and don't have the experience to make an educated choice here.
I would like to hear from those who have built this receiver and why
they made the
Hi Larry,
I went with the 150kHz option, personally. I'm not very good at CW,
and was more interested in having the extra tuning range so I could
tune around and listen. The 80kHz does give you finer-tuning on the
dial but personally I'd rather have the wider range. I find it just
Larry wrote
I am building the K1 with the 4 band filter board. I am at the step
where I must decide which VFO range to choose, 150 kHz or 80 kHz.
I would like to hear from those who have built this receiver and why
they made the choice they did.
Larry,
I've used the 170 kHz (that's what
Mike Morrow wrote:
Larry wrote
I am building the K1 with the 4 band filter board. I am at the step
where I must decide which VFO range to choose, 150 kHz or 80 kHz.
I would like to hear from those who have built this receiver and why
they made the choice they did.
I've used the 170 kHz
.
I wonder why I have never seen any mods where a vernier dial has been
added to
the K1 unit? Reasons...???
--
GB 73's
KA5OAI
Sam Morgan
=
The K1 already has a digital dial so I think you mean a vernier drive.
Remember that the K1 is tuned with a
13 matches
Mail list logo
