I have both of my LM-470s remotely operated. All I did was parallel the
existing switch on the tower with an identical remote switch in the
shack. It requires paralleling six wires and bringing them into the
shack. I haven't hooked up pilot lights to tell me when I've reached a
limit switch, but it's on my list. But as long as your limit switches
are working, there should be no problem.
Maybe I'm naive, but I never considered changing directions much of an
issue. The switch is spring loaded (M-O-M) and has a center off
position. So you have to pass through "off" to change directions.
If you need my diagrams, I can e-mail them to you.
73, Joe
K2XX
Bill Erickson wrote:
> I have a Tri-Ex LM-470 motorized crank up tower. I would like to be able to
> remotely control it from my ham shack. The only remote control system that I
> have been able to find is the original system that was offered by Tri-Ex. My
> concern with that system is that it uses (GASP) vacuum tubes to provide the
> delay required when changing directions. Does anyone out there have a
> schematic or other information on a more modern design? I have the
> facilities to fabricate anything needed, or I would be willing to purchase
> an existing system. Any suggestions?
>
> Thanks for your help.
>
>
>
> 73,
>
>
>
> Bill N6MXU
> _______________________________________________
>
>
>
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>
>
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