[amsat-bb] Alliance U-100
Greg D
ko6th.greg at gmail.com
Sun Nov 29 00:30:21 UTC 2020
>From my notes, I think it's something like a 120uf AC capacitor. This
was from an Alliance U-110, I think. Still a click-click type rotor.
Don't assume that such a rotor is not able to be computer controlled.
It's a rather easy one to home-brew, since all you have to do is count
the clicks. I built one with a Basic Stamp-II (remember them?). Still
works. See the top of a desperately out of date home page:
http://home.wavecable.com/~ko6th/ where there's a link to the design and
code. Should be easy to port to an Arduino or similar.
Greg KO6TH
Gary via AMSAT-BB wrote:
> Years ago I used an Alliance U-100 for an elevation rotator. I turned the control box upside down and the "S" indicated "Straight Up". The click box indicator does not lend itself to computer control, and I parted with that setup long ago. I picked up a couple junker U-100s the other day without a control box. I don't really need the control box, but was hoping someone could tell me the value of the starting cap in the control box.
>
> Does anyone happen to know the value of the starting cap in the U-100 control box?
>
> Thanks and 73,
> Gary "Joe" kk0sd
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