[HBR] Current day HBR

[Peter Bertini]

I second that comment on Walt! Always learn a lot reading about his
projects.

There is a gent who is making new coil forms, I don't have the link, but
they look very nice.

The mechanics of the dial drive system is a big challenge.

One thing I was thinking about is the availabiltiy of three section tuning
caps for AM FM tuners. Folks often comment about the the lack of general
coverage bandspread on Ted's designs. Using one of these AM FM caps opens
some possibilities. The FM sections could be used to replace the original
HBR three section tuning caps. Shortwave coils could be wound, with  short
flying leads off the top,  that would be connected to pin jacks on the 365pF
sections for general purpose SW coverage. That would give a bit more utility
to the receiver, besides ham use.

Pete

On Mon, Jan 10, 2011 at 11:41 AM, <W6ph at aol.com> wrote:

> Some random thoughts:
>
> Plug-in coils are really the way to go.  But the plug-ins are rapidly
> becoming unobtainium.
> K5MO had a bunch of four, five, and six pin Meissner coils that he was
> selling.  I'm not
> sure if he still has them.
>
> One of the big concerns that Ted had was stability of the first local
> oscillator.  By building
> a single band HBR, the three front end coils could be hard wired in.  A
> really cool idea
> would be to pick up one of those 5-5.5 MHz Heathkit LMO's to use as the
> first LO for
> linearity and stability.  Combining that range with the 1415 KHz IFT's
> would give you
> 3585 KHz to 4085 KHz.  I haven't considered any spurs which might be there.
>  If you
> had the wherewithall to modify the 1415 KHz IFT's to 1500 KHz, you would
> have the
> entire 80m ham band.
>
> There seem to be quite a few choices for dials other than the Eddystone.
> One thought
> that I have had is to use the Jackson Brother verniers with a blank CD as a
> circular
> dial.
>
> One other comment.  There may be another Ted Crosby out there.  I have
> followed
> Walt Hutchens' postings over the years and have archived most of them for
> ideas.
> He might be the 21st Century Ted Crosby.
>
>                                    73, Kurt, W6PH
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