[BC] A new Whatzit?

[Dennis Cope]

Connect the thing up to a network analyzer and find out what frequency it's
tuned to.
Dennis



the material the loop and base are made of?? (Looks a little like brass or
bronze in the pics, to me... how much does it weigh??) Would brass help, or
hinder DF ?

   what if there were another ring inside this one... any outputs to that?

   Is that a pulley partway up the center??

   My mech skills tell me that even "back in the day" - nobody would go to
the time and expense of using three screw to level / plumb the thing unles
they really needed to...   So I wonder why they did it.  the points are used
rather than pads because they "get down through all the junk" and are more
reliable...

 I can't help but think there was another loop inside the large one,
probably 90 degrees to the first... or at least at a different angle to the
first...

   and I cant help but notice all the screws (?) around the circumference of
the vertical support.   If they hold it still from spinning, that's one
thing, but if they hold a bearing or a race, it means the accuracy of the
swing was more important than just DF work... or... it was run by something
other than a crank at the bottom (like the old DF trucks from the movies had
a crank... )


   I wonder if this was partly gimbal to hold and feed something else...
which isn't in the picture...
  Jason
>
> I wish I could give you a make and model, but there is nothing like this
> on
> the Whatzit.  There is however, several connecting posts located near the
> bottom label "A" through "H". "A" is the common post and "B" through "H"
> are
> tap points for a coil of wire looping around the circumference of the
> ring.
> "H" indicates there are a total of 105 turns.  The coil is made of green,
> cotton, insulated, magnet wire, gauge unknown.
>
> I too, believe it is some sort of RDF antenna, but what kind and where it
> came from are a mystery.  Each of the three legs comes to a point that is
> itself an adjustable screw to adjust the level of the loop.  The design
> leads me to believe there is a missing base plate of some sort as I see no
> way of keeping the base from moving while trying to adjust the direction
> of
> the loop.
>
> There also appears to be something missing, inside, at the bottom of the
> loop.  There is a finely threaded mount, approximately 1/2" in diameter by
> 1/2" long, that looks like something else should mount there.
>
> I came by this piece while cleaning out one of the supply closets at our
> remote studio in a theme park.  No one knows where it came from or how it
> got there.
>
> Dan
>
> -----Original Message-----
> From: broadcast-bounces at radiolists.net
> [mailto:broadcast-bounces at radiolists.net] On Behalf Of Barry Mishkind
> Sent: Sunday, February 05, 2006 12:47 AM
> To: broadcast at radiolists.net
> Subject: [BC] A new Whatzit?
>
> Perhaps someone knows the make and model of this item?
>
> www.oldradio.com/pic1.jpg
> www.oldradio.com/pic2.jpg
>
>
>
>
>
> _______________________________________________________________________
> Barry Mishkind     -       Tucson, AZ    -   520-296-3797
>
>
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>
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