[Towertalk] Position Indicator

[VE6JY Don Moman]

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
VE6JY

> > 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 ka4inm@tampabay.rr.com
>      100% Slack. since July, 1997 (still free!) SENT D&T are UTC
>         Visit my HAM Web SITE at: http://www.qsl.net/ka4inm
>
>