[Tig] mistake in wikipedia?

[CBRichins at aol.com]

Rob,
 
I read your post and the replies re: kinescope and iconoscopes.
in the early sixties I worked on a military weapons system in the Navy that  
converted radar to video.
The RCA system employed kinescopes and iconoscopes and graphicons.
The kinescopes were their term for the picture tube display.
TV stations used a kinescope to display images to be recorded on a 16mm  film 
camera,
i.e. "Kinescope recordings" before video tape.
The iconoscopes were their term for a pickup tube scanning an internal  
etched target
to generate alpha-numeric symbols (also used in TV stations to generate the  
"indian head test pattern").
The graphicon was a double-ended tube with a common, controlled persistence  
target.
one end scanned PPI radar video (rotating yoke) and the other end scanned  
the radar image
off to a preamp (tv deflection yoke). Essentially a scan converter.
The symbols were moved with joysticks over radar targets on a display more  
easily viewed.
Used to pinpoint targets in an anti-aircraft defense system.
Like a huge early video game except the targets really disappeared!
All employed in a system with 1,200 tubes (really high maintenance)!
 
Craig B. Richins 
_cbrichins at aol.com_ (mailto:cbrichins at aol.com) 
 
 
 



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