[Elecraft] K1 VFO range??

[Don Brown]

Hi

You can also use a 100 pf NPO cap for about 100 khz of range splitting th=
e difference. Also add a 100 K resistor across pins 1 and 2 of the VFO po=
t to improve the linearity. =20

You may want to change the value of C31 and C67 to 1 uf to speed up the A=
GC a little. Most people like this AGC speed up

Add a 15 to 100 uh choke across pins 3 and 8 of K1 to stop the loud pop w=
hen switching the attenuator in and out

Don Brown
KD5NDB

----- Original Message -----
From: Denis Dimick
Sent: Sunday, October 06, 2002 11:06 AM
To: Wallace, Andy
Cc: elecraft@mailman.qth.net
Subject: RE: [Elecraft] K1 VFO range??

Well I went home and looked at the VFO pot, and low and behold one one th=
e =20
wires had broken while installing the face plate. I did not use the =20
supplied green wire, but used some other wire I got at RS. So this fixed =20
it!! Now getting about 187kHz on the VFO!!..

I also found that I had missed a spot on the earphone plug. So I fixed it=
 =20
and now am ready to start the transmiter part..

Thanks for your help Andy,

Denis - KC6AUP


On Fri, 4 Oct 2002, Wallace, Andy wrote:

> For 60 kHz range, the VFO cap is a little yellow guy. For 150
> it's the silver tubular one. You could have a miswired VFO
> pot, too....double check!
> =20
> Good luck. The K1 is a heckuva rig!
> -Andy
> =20
> > -----Original Message-----
> > From: Denis Dimick [mailto:denis@dimick.net]
> > Sent: Friday, October 04, 2002 3:22 PM
> > To: elecraft@mailman.qth.net
> > Subject: [Elecraft] K1 VFO range??
> > =20
> > =20
> > I cant seem to figure this one out.. I installed the proper =20
> > christals and =20
> > caps to set my VFO to 150Khz, But for some reason I'm only =20
> > getting about =20
> > 87Khz out of the VFO..
> > =20
> > I know someone posted something about this in the last month, =20
> > but have not =20
> > been able to locate the message/thread in the archives..
> > =20
> > Anyone know how to solve this?
> > =20
> > Thanks
> > =20
> > Denis - KC6AUP
> > =20


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