Antenna rotator renewing
April 1st, 2008 | Last modified: November 8th, 2011Last summer I got an old antenna rotator from a friend. It’s controller is missing, but at least it still works and it’s only rusty, and needs a little renewing, and of course a new controller.
It has a little 12V motor and a 1K pot inside (as the antenna turns, the pot’s resistance changes and it can be used in a voltage divider circuit to detect the current angle of the antenna).
Today the weather was very nice and I had some time to work on this project, so I disassembled the whole thing.
The pot is in a very bad shape, WD40 spray didn’t helped it, so I’ll have to replace it with a good quality 10K one. To replace the pot, I had to dismount the gears.
At this point I realized that I only have normal quality pots at home, so I’ll have to buy a very good one tomorrow.
After this I went down to my workshop, and I continued the disassembly. There were some very rusty screws that didn’t want to come out easily and I spent most of the time tinkering away at them.
Finally I cleaned the case with methylated spirit and a wire-brush:
To be continued!
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I'm Nonoo. This is my blog about music, sounds, filmmaking, amateur radio, computers, programming, electronics and other things I'm obsessed with.
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