Hello Marc,
If your prop pitch motor has been modified already, and it sounds like it has
since it turns fast with only 10 volts DC, it is ruined and probably cannot be
repaired.
This idea to remove one set of gears from a prop pitch that was developed in the
early '50s is a very poor idea in my opinion. I modified one and after that, it
would not hold my antennas in position during a wind. I use one now that is not
modified to turn my large 5 element 20 meter beam on a 48 foot boom and I am
very happy with it. I use about 35 volts AC on it and it turns at about 1 rpm
which is a very good speed for a large antenna.
If I were you, I would look for a different prop pitch motor to use.
Stan
w7ni@teleport.com
Marc Wullaert wrote:
> > I need some help....
> > I'm busy now to rebuild a used Prop pitch.Whit the rotor there was a bell
> > gear(M) supplied.
> > i have some copy's from CQ magazine where the info I found.
> > The PP is modified and turn to fast .If a put 10vdc on the motor it take
> > about 50seconds for one turn.To fast for me and my antennas.
> >
> > Now my question is : Is the bell gear (M,in the cq magazine) token out for
> > modifing ?
> > Can someone send me a JPG file of the bell gear .The one I have is looking
> > like someone
> > already modified it or it is broken !!!!!
> >
> > Another question :what is the going price for a selsyn and a Radio compass
> > (like in the Arrl antenna book)
> >
> >
> > Marc Wullaert ON4MA
> > Software Manager UBA
> > Visit my UBA -TLS club webpage at
> > http://users.pandora.be/nitro/tls/
> >
> >
>
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