18 Jul
2003
18 Jul
'03
11:53 a.m.
From: "Fred Cisin"
<cisin(a)xenosoft.com>
On Fri, 18 Jul 2003, Mark Firestone wrote:
Hi
I'm not sure that they run wires to the blades of helicopers.
If it is current caring wire, they most often use brushes.
For signal lines and low power, rotory tansformers are
common.
For autos, it is either a wire or brushes. This depends
on the manufactures choice. Both have relaibility issues.
Dwight
I always wondered how they hooked up wiring to
things that rotate, like
helicopter blades. With brushes?
by periodically running it in reverse to untwist the wires? >I'm trying to put a push-to-talk switch
on the steering wheel of my
>car so I can key the 2-meter ham radio while keeping both hands
>on the wheel. I've got a little boom mic and have built an interface
>box, but how to mount the switch has me stumped.
disconnect the horn and use its button
7841
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