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Forum Free Registration Closed
Granada Television Brochure, 1970s
Long Gone UK TV Shops
Memories of a Derwent Field Service Engineer
PYE Australia Circa 1971
Radios-TV VRAT
Fabulous Fablon
Thorn TX10 Chassis
Crusty-TV Museum, Analogue TV Network
Philips N1500 Warning!
Rumbelows
Thorn EMI Advertising
Thorn’s Guide to Servicing a VCR
Ferguson 3V24 De-Robed
Want to tell us a story?
Video Circuits V15 – Tripler Tester
Thorn Chassis Guide
Remove Teletext Lines & VCR Problems
Ceefax (Teletext)
Suggestions
Website Refresh
Colour TV Brochures
1970s Lounge Recreation
CrustyTV Vintage Television Museum
Linda Lovelace Experience
Humbars on a Sony KV2702
1972 Ultra 6713
D|E|R Service “The Best”
The one that got away
Technical information
The Line Output Stage
The map
Tales of a newly qualified young engineer.
Tales of a Radio Rentals Van Boy
Sanyo SMD
Disastrous Company Rebranding
1969 Philips G22K511
Memories Of The TV Trade
Crazy house
Dirty TV screens
Dual Standard and Single Standard CTV’s
Radios-TV on YouTube
The Winter of 62/63
A domestic audio installation
1979 Ferguson Videostar Deluxe 3V16
Music centre modifications
Unusual record player modification
B&K 467 Adapters
Mishaps In The Trade
1971 Beovision 3200
Spiral scanning of a CRT
I found this article and noted it was an April magazine, Now is this a spoof or a possible working CCTV system? page 94
https://www.americanradiohistory.com/Archive-Tele-Tech/Tele-Tech-1955-04.pdf
Keep the grey cells working.
Frank
Without looking at the article my first thoughts were that the spot would spend more time in the central area than in the periphery. I see that the author does include brightness correction so it sounds as if a greater range of brightness is demanded of the phosphor and I would think that's a bad thing.
Peter ?
Posted by: peterscottWithout looking at the article my first thoughts were that the spot would spend more time in the central area than in the periphery. I see that the author does include brightness correction so it sounds as if a greater range of brightness is demanded of the phosphor and I would think that's a bad thing.
Peter ?
Brilliance correction is mentioned, see fig 8 .
Seems a bit like re-inventing the wheel to me (pun intended) ? ?
Personally, I think it is an April fools trick designed to get you thinking. And it certainly succeeds there. ?
To understand the black art of electronics is to understand witchcraft. Andrew.
I vote for April Fool, too- as well as the shading implications, I imagine that movement artefacts could be at best weird, if not disturbing. Long, long ago, one of the electronics publications did a spoof about Lissajou TV scanning, the idea being that if the pattern was dense enough, a credible image could be produced.
It's not to say that there weren't all sorts of people, from mad lone inventors in sheds to learned boffins with big industrial money behind them, trying to conjure up improved methods of portraying an electronic picture. I think it's reasonable to imagine that the original EMI team (who were indisputably, as Ian Durie put it, clever baxxxxds) would have thrown all sorts of ideas up in the air during research and development and settled on line and field raster scanning as the least troublesome solution.
Yes, I hadn't spotted the publication month, so well a truly fooled.
Peter ? ?
Out of interest a search for further information proved negative, so it was either an April fool or and solution looking for a problem it never found.
On the search I came across this from 1947 for a spiral chronograph which looks much more useful at a time when other instruments to do this task were probably not as reliable.
page 69.
https://www.americanradiohistory.com/Archive-Tele-Tech/Tele-Tech-1947-06.pdf
Keep you away from the football. ?
Frank
Posted by: peterscottYes, I hadn't spotted the publication month, so well a truly fooled.
Peter ? ?
Never mind Peter..... but of course it might not be an April fool's. We may never know. ?
To understand the black art of electronics is to understand witchcraft. Andrew.
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