[Boatanchors] Knight-kit Star Roamer

[Robert Vincent]

If you do build it, you might try replacing the diode (probably a 1N43)
with a schottky Barrier diode as they are much more sensitive.

On Fri, Jun 17, 2022 at 3:33 PM Frank Barnes <fbw4npn at gmail.com> wrote:

> Just one man's opinion:   Go ahead and build it - with a decent antenna it
> should be fun to play with.   I suggest replacing all of the old
> electrolytics with modern ones.   Disc Ceramic caps are probably OK but I'd
> replace the tubular ones.  I would also replace the selenium rectifier with
> a modern diode.
>
> I think it uses a diode for AM detection.   In some circuits, doubling the
> diode with a second one in parallel produces better AM.
>
> I don't know if the antenna input was designed for 50 ohms or 300 ohms -
> that's something to consider, in order to get best performance.  If you
> have a high SW noise level at your location, consider an
> antenna-on-ground.  These do not pick up as much man-made noise but do hear
> transmissions well.   I use one for my old Hammarlund and it makes a world
> of difference, compared to the inverted Vee or an elevated random wire.
>
> On Fri, Jun 17, 2022 at 3:17 PM SGS 126 <brloper at gmail.com> wrote:
>
> > I was able to located an unbuild Star Roamer in the box dated Jan 1969.
> > Essentially the same radio I bought and assembled in June of 1969. When I
> > got the radio I had visions of building the radio like I did 53 years ago
> > but now I’m having second thoughts about it.  I’m wondering if I did
> build
> > the radio I know I would need to buy a few new parts for example the
> > electrolytic in the power supply and I wondered about just building it
> with
> > all new capacitors and replacing any resistors out of tolerance.  I also
> > realize the shortwave world is nothing like it was in 1969.  So now I
> have
> > a kit and I’m wondering if I should just leave it in the box.  It’s given
> > me a new perspective on trying to relive the past.
> >
> > Ben KJ4CC
> > _______________________________________________
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> > Boatanchors at puck.nether.net
> > https://puck.nether.net/mailman/listinfo/boatanchors
> >
>
>
> --
> Frank Barnes
> W4NPN
> Chapel Hill, NC
> Grid Square FM05
> Cell 919.260.7955
> _______________________________________________
> Boatanchors mailing list
> Boatanchors at puck.nether.net
> https://puck.nether.net/mailman/listinfo/boatanchors
>


-- 
Robert Vincent
DLM Antenna Technology
401-487-3933

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