A while back, I wired up an SPST momentary switch to a pigtail with a household
plug and a miniature phono plug to the other sex household plug. Stuck each
into
the end of a 50 foot extension cord, and used it to remotely fire a Winder 2 to
shoot hi-power rocket launches. Worked flawlessly. Don't know how long the
extension cord can be but next time I plan to use a 100 foot extension cord.
One
of the amateur rocketeers failed to understand the basic longitudinal stability
requirements for free rockets. His did three complete loops before it hit the
ground. Though I and my OM-4T both survived unscathed, this professional rocket
engineer plans to be farther away next time. Great sequence, though, if anybody
is interested.
Gary Edwards
Malcolm Clay wrote:
> At 11:58 AM 7/21/99 -0600, you wrote:
>
> >You don't have any problems with "ripple"? (that's what we call it in
> Denmark -
> >sounds kinda english, so I assume it is). You know, where in fact pushing the
> >contact generates not just a single - but an unintended sequence of rather
> >short contacts, before the connection is permanent.
>
> Hummm...I haven't had any kind of trouble with it so far, seems to fire the
> shutter fine both in single and sequence mode. I've been using the
> home-built remote cable for a number of years and it doesn't seem to have
> had any adverse effects. (At least none that show...yet.)
>
> >I could ask more specifically: what currency is required through the wire in
> >order for the camera to fire? Yes, I am initially wondering how long I can
> make
> >it and which cable I should be using....
>
> I would guess it would be 6 volts (the internal power supply) -- I'll hook
> up my fluke and see if I can get a reading. I wouldn't expect there to be
> that much of a fall-off in current, but maybe we can extrapolate for longer
> cables.
>
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