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| Re: Remember TV Test Patterns? (258050) | |||
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Re: Remember TV Test Patterns? |
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Posted by tracksionmotor on Sat Oct 27 20:42:41 2007, in response to Re: Remember TV Test Patterns?, posted by SelkirkTMO on Sat Oct 27 17:18:08 2007. YES. I remember. Kinescope and scanning photomultiplier all in one. The image was fixed internally unlike spot scanners or film chains. Kudo to BIE for the image. I don't make things up...just need some help.In 1976 Dayton HamVention fleamarket, hottest item was the 'fishbowl' named afer its construction. What this electronic assembly did was to take a motion picture film cassette and turn it into video....short lived by limited selections. RCA would be next with 'Selectravision' using vynil discs with seven grooves in place of the one of a 33RPM record...short lived by electromechanical problems. I once encountered the first video player on the internet. It used a 78RPM record to modulate a special neon lightbulb mechanically syncronised which displayed image on a small glass screen. Bulb was common to all early Nipkow disc sytems including Jenkins and Baird. I'd like to find a link to turn over to 'Early Television.' I did remember visiting a museum of 'Quicksilver Mining' (mercury) with a section devoted to CRTs in California four decades ago which I attributed to FARNSWORTH but was actually a tube collector whose collection is in San Jose. BEST collection of vacuum tubes was assembled by a Catholic Brother and is in Bronx, New York. PETER ROSA might just remember and share. Collection has everything from DeForest to Numitrons. More to come. I'm not easily ridden of. |
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