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21st Apr 2019, 12:33 pm | #1 |
Nonode
Join Date: Oct 2010
Location: Gloucester, Glos. UK.
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How it's made. 1950's Televisions
Came across this YouTube presentation today looking at how TVs were made in the 50s.
Fascinating footage , looks like it was an American RCA Victor Tv plant. https://www.youtube.com/watch?v=lxQS58t39_U |
7th Oct 2019, 6:09 pm | #2 |
Rest in Peace
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Location: Ripley, Derbyshire, UK.
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Re: How its made. 1950s Televisions
"Kinescope", not Cathode Ray Tube - How fancy can you get ?
Actually, I have seen that word used for a C.R.T. many years ago in an American "toob" data book. Tony. |
7th Oct 2019, 9:42 pm | #3 |
Nonode
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Location: Sunderland, Tyne and Wear, UK.
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Re: How its made. 1950s Televisions
Re: Kinescope, this was used in a roundabout way fairly recently wrt crt sets in various manuals, the abbreviation AKB (Auto Kine Bias), which was of course meant for the automatic greyscale feedback signal on more modern sets, some of Japanese origin and some of Turkish origin.
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7th Oct 2019, 10:50 pm | #4 |
Dekatron
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Re: How it's made. 1950's Televisions
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7th Oct 2019, 11:20 pm | #5 |
Octode
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Re: How it's made. 1950's Televisions
I've heard Kinescope used as an American term for a telerecording, ie a programme made with electronic cameras recorded onto film.
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8th Oct 2019, 9:11 am | #6 | |
Dekatron
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Re: How it's made. 1950's Televisions
Quote:
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8th Oct 2019, 9:46 am | #7 |
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Re: How it's made. 1950's Televisions
BVWS members will have the Video Disks of GEC and Bush manufacturing as for tube safety they were tough back then.
Cheers Mike T
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9th Oct 2019, 5:16 pm | #8 |
Dekatron
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Re: How it's made. 1950's Televisions
I think the "kinescope" term was created by RCA to describe the receiver CRT at the same time that they named the camera tube as the "iconoscope".
Peter |
9th Oct 2019, 6:44 pm | #9 |
Dekatron
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Re: How it's made. 1950's Televisions
As an aside, the original monitor for the TRS-80 model 1 was an RCA portable TV with the tuner and IF board removed and a video input board fitted. The service manual for it is mostly pages from the RCA manual along with a circuit diagram for the video input board. Anyway, it refers to the CRT as a 'kinescope', shortened to 'kine' (for example the parts list might include 'bracket, kine mounting')
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9th Oct 2019, 8:30 pm | #10 | |
Dekatron
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Re: How it's made. 1950's Televisions
Quote:
Also, the commentator, he used to be on hundreds of such short documentary films, what was his name?
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9th Oct 2019, 11:28 pm | #11 |
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Re: How it's made. 1950's Televisions
I have now seen both the American and British 'How TVs were made' You Tube videos and, as expected, the processes shown in the two are broadly similar, since both were dealing with the Mass Production of black & White sets of the same era, and which, broadly speaking would surely have been similar in design, aside from the obvious differences in the TV broadcast standards, and the mains voltage/frequency difference. Incidentally I'm assuming that U.S. TVs were basically 'live chassis' sets, as ours were.
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10th Oct 2019, 6:04 pm | #12 |
Dekatron
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Re: How it's made. 1950's Televisions
Hi,
I've wondered about American tellies having 'live chassis'technology. Wouldn't the line voltage be too low to supply the various HT supplies required without depending on the boost HT circuits? I have an old French 819 line TV that uses a transformer because the national supply back then was 110 volts. My telly has a voltage selector from 110 to 250 volts, and 'E' series valves. Rummaging through boxes of valves on flea markets, rallies, etc. I have never seen any 'P' types. Cheers, Pete.
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10th Oct 2019, 7:08 pm | #13 |
Dekatron
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Re: How it's made. 1950's Televisions
Most 'color' american 'tube' sets use a mains transformer. I think the mono ones are a mixed bag, certainly less live ('hot') chassis sets than in the uk where it's almost a given that they are. There seemed to be a liking for metal-cabinet sets as well, (on a 2-pin cable!) either with a wood grain photo transfer or some 50's garish coloured enamel paint job.
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