8 Feb
2007
8 Feb
'07
4:32 p.m.
On Thu, 8 Feb 2007 18:56:50 -0500, William Donzelli wrote:
> Many years ago, a very stupid Marine stuck a
screwdriver in a radar display to discharge the tube,
with
> power still on. He died and the screwdriver
planted itself several inches in the prestressed concrete
bunker
> roof. It turns out he had his other hand holding
tight to the grounded chassis as he leaned over to
discharge
> it.
What radar? The supplies in military radar scopes are
real ass kickers
compared to those found in computer and TV monitors.
--
Will
Try discharging one of the big 37/38" display monitors, or for that matter my RCA
38" HDTV is a big hunk
of glass. It is not only the powersupply, but once it is charged up and turned off, the
size of the bang is
directly related to the surface area of the glass holding the charge. Big CRT's need
higher voltages to
operate and have a lot more glass to hold the charge. Those big round radar tubes had a
lot of surface
area. The only one I ever worked on (outside of AT school) was attached to weapons
simulator doing
some ECM stuff that I should not get into detail about.
Back under my rock ....
The other Bob.