[Boatanchors] DX-40/VF-1

Dave Sublette k4to.dave at gmail.com
Fri Mar 4 12:51:13 EST 2022


Good point Rod.  I was told that they drift.  Also,  the conversion would
make the VFO independent from the rig.  No more power plug.  I was also
told that it chirped and clicked...both important to me as I am almost 100%
CW.

73,

Dave, K4TO

On Fri, Mar 4, 2022, 11:50 AM <radio_man at wbsnet.org> wrote:

> Dave,
> Why would you want to convert the VF-1? They work quite well as designed,
> stability in mine is no problem after a warm up. Works well enough for AM
> use....
>
> Rod
> K0EQH
>
>
>
>
>
> > Good evening,
> >
> > I seldom post on here because I am not much of a Boatanchor person.  But
> I
> > enjoy reading the posts and remembering the rigs I have known since 1956.
> >
> > A year ago, I was given a DX40 and a VF-1 to restore for a friend.  I
> > worked all year and finally have the DX-40 on the air and it works well.
> > I
> > can either use a crystal to control frequency, or an N3ZI DDS VFO.  My
> > question is this:  There is a 40M peaking coil in the driving chain, the
> > purpose of which is to enhance the harmonic content when driving the rig
> > on
> > 20 meters and above with the 7 MHz crystal or VFO.  If I want to drive
> 20M
> > through 10M with the fundamental from the DDS, should I remove or short
> > across this coil?
> >
> > 2nd question:  I have yet to start on the VF-1.  I have a set of plans
> for
> > changing it over to a solid state VFO, basically just using the case,
> dial
> > and tuning cap.  Externally it would seem to be the VF-1 when finished,
> > but
> > is supposed to be more stable.  What are your thoughts?  Is it OK to
> > convert this?  Have any of you done this conversion?  Any advice?
> >
> > Thanks very much and 73,
> >
> > Dave, K4TO
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