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Friday, September 26, 2014
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8 comments:
Shown in the open wagon up front
are 2 (I can tell by the yokes)
General Electric 60" WW 2 anti
aircraft searchlights that had
160 amp DC carbon arc sources
At 1 time I owned 5 made by the
Sperry Gyroscope Co & 1 by GE
The Sperrys were much better
There were 8000 of these lights
built between 1937 & 1943 & were
rendered useless in the tracking
of enemy aircraft with the advent
of jet powered planes & most of
them were dumped in the ocean
after the war ended & the rest
of them became publicity units
Very few of them remain today
(6K were GE & 2K were Sperry)
Each of the lights was powered by
it's own generator set using a
Hercules JXD flat head 6 engine
driving a Westinghouse or a GE
genny depending on which light
The 24" rotating uncoated positve
carbon fed throught the center
of the Rhodium reflector & the
smaller coated negative came up
to meet it up front at an angle
A pair would burn about an hour
That's a generator up front in
the wagon another was in back
That's ten cents worth of my
my "knickel knowledge"
Chic, There`s one still here in Columbia SC. It`s mounted on a trailer and parked behind a electrical company on Millwood Ave. I`ve never seen it in operation and it`s in terrible shape. I`ll try and get some pictures of it.
Thanks Hal but don't bother on my
account as I had my share of them
long long ago & I know there are
still a few around but some 30
or more years ago Sky Tracker
came out with a 4 headed Xenon
cam action rotating unit & has
been copied by several others
that put out about an eighth of
the illumination the 60" units
did at 800 million candlepower
These are "plug & play" devices
that don't require any knowledge
The old 60" Rhodium reflectors
have some severe value as scrap
I would guess Hal that the unit
in Columbia is long past repair
We had to manufacture many of
the parts to keep ours operating
more than 30 years ago
Well it seems I lied about the
position of the carbons as now
I remember that the positive
fed through a metal donut in the
center of the glass front & the
negative came up from behind
(the reflector had no hole)
Sorry for those taking notes
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