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[Towertalk] Position Indicator

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Subject: [Towertalk] Position Indicator
From: VE6JY Don Moman" < (VE6JY Don Moman)
Date: Sat, 11 Jan 2003 23:58:02 -0000
If you are using the same or similar selsyn motors, just wire the third
motor in parallel to the existing two. No need to build anything.

73 Don

> > I am using a selsysn for an indicator on one of my antennas.  Everything
> > works OK now.  However, I would like to get a second output so that I
> > can use it for knowing the position of the antenna for when I use the
> > station remotely.
> > I was wondering if anyone has done this and could suggest a circuit that
> > I could use.
>   Look at the 3 phases of the selsysn generator's output with a scope
> (when it turns), build 3 separate high input impedance, low impedance,
> high current output amplifiers es feed as many selsysn motors you wish
> with them.  (one OP amp. es 2 power transistors)
> --
>         73 (= Best Regards) de: Ron
>      100% Slack. since July, 1997 (still free!) SENT D&T are UTC
>         Visit my HAM Web SITE at:

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