Many years ago, on Armed Forces Day, the Oregon National Guard Unit I
belonged to had moved several pieces of our Ordinance, and our
surveillance radar unit which had a range of 150 miles or so, to a static
display in front of Marion County Courthouse. We were sweeping at extreme
range and allowing visitors to see how we could detect flying objects at
great distances. Directly across a 4 lane city street was a Pay Less drug
store. A customer exited the store with a whole paper sack full of Press 25
flashbulbs. When the sweep and the customer aligned, all of his flash bulbs
went off simultaneously. The clerks from the PayLess store came running to
the Radar Unit, eyes as big as saucers, and jabbering excitedly about
exploding flash bulbs, etc. We turned down the ranging to local, and that
seemed to solve the problem. You do not want to be in the apex of that
array when it is operating. Birds swerve away from it.
Jim Hupy
Salem, Oregon
On Sat, Nov 9, 2019, 2:56 PM Matt Colie via Gmclist
wrote:
> > I'd be just real interested in a photo (from a distance) of a 480Kv
> battery system....

> >
> > --johnny
>
> A known safe distance, I'll wager.
>
> The way Johnny wrote this reminds me of a humorous incident of years past
> that at least all the juice smart people here will appreciate....
>
> Before the age of modern electronics (yes, I am that old), the flash that
> some photographers used ran on a 510V battery. These really did exist at
> one time. They lived in a case, and when the case was closed, two pins
> pierced the celluloid cover to connect it. I was in my room at the dorm and
> preparing to go shoot some sports to maybe sell some images for money. By
> the meter I had, the battery was marginal so I replaced it. A classmate
> came in to see what I was doing because he had seen the test flashes. I
> told him that I was changing out the flash battery because it was bad. I
> was
> turned around and packing my kit when I heard the scream.
>
> When I turned around, classmate was standing frozen in place holding the
> test probes of my meter (yes a 260), and he had let his fingers slide down
> on
> the probes. A dead 510V flash battery is still about 480V DC.
>
> Matt (Who almost sold enough to pay the subway fare.)
> --
> Matt & Mary Colie - '73 Glacier 23 - Members GMCMI, GMCGL, GMCES
> Electronically Controlled Quiet Engine Cooling Fan
> OE Rear Drum Brakes with Applied Control Arms
> SE Michigan - Twixt A2 and Detroit
>
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