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| Re: Remember TV Test Patterns? (252428) | |||
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Re: Remember TV Test Patterns? |
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Posted by tracksionmotor on Tue Oct 9 23:01:25 2007, in response to Re: Remember TV Test Patterns?, posted by BIE on Tue Oct 9 21:09:32 2007. Sarnoff had problems with the 'Iconoscope' with poor resolution and sent Vladimir Zyorkin to Philo Farnsworth for a 'wassup.' What Sarnoff did with 'Radio Manufacturing Company of America' was to purchase up every patent in radio for control.....you came up with a new idea and belayed by a patent....the RCA radios had a back label with dozens of patents. Major Armstrong was his first victim with the regenerative receiver....Sarnoff owned DeForest patents. Major Armstrong developed FM transmission and established the 'Yankee Network' in the range of the six meter band....like 52 to 56 Mc. and fought him for patent rights.....Armstrong commited suicide from the stress but his widow won....nothing. Farnsworth as NOT defeated and when the pedecessor of the the FCC said, 'The NTSC standard will be 525 line resolution with 60 cycle AC lock and 15,750 cycle scan sync' sucessfully sold key patents to Sarnoff/RCA. Took a while to get toobs to work this. Making UHF TV to work after the war when the spectrum was scambled.....was a whole another project because of cost....UHF tuners had no 'front end' using a broad band diode mixer in a down conversion scheme.I don't write stuff like this up from reading internet seaches. In 1974, Sarnoff Jr. was dumping non-electronic units like car rental (Hertz), carpet (ABC) and RCA Institutes (originally founded by Marconi to train radio operators). I know this stuff from 'hands on' and so does Selkirk TMO and Peter Dougherty. I'm an RCA/TCI graduate. I need to put my classic Yaesu FT station on the air and bake those 572Bs. I'm working hard cut overtime...there is no money available for a Icom IC-7000 'wonderbox' but maybe a few dollars for Newtronics 6BTV from HRO....I can build the most spectacular HF arrays on eight acres but cannot be left unattended due to weather...a 6BTV on a fold-over mount made from discarded S/S mountings (from sander program...out of dimension specs) is the easy way to go. Check out the 7272 Ragchew net and if you speak to 'Loby' WA2AXT tell him you heard from the 'Hurricane.' He'll know. Mom passed away Last October 12th. More hard cut time. Peter, WB2SGT |
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