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Old 04-13-2012, 11:22 AM
6GH8cowboy 6GH8cowboy is offline
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Why so Big

Why were the color tv deflection yokes so big? There were certainly "big screen" B&W sets and the B&W yokes DY's were all about the same size.
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Old 04-14-2012, 08:27 AM
W3XWT W3XWT is offline
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First, look at the CRT neck diameter... those three electron guns in a triangle couldn't help but make the neck wide. Now, add in the complexity of bending those three beams in precise angles through a shadow mask. That was among the many reasons a single electron gun system (like the Trinitron(tm)) was so sought after.
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Old 04-14-2012, 09:06 PM
6GH8cowboy 6GH8cowboy is offline
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I guess the coil to beam distance makes sense. I now recall some of the GE and Admiral 19" sets with the really small neck CRT's and the yoke was smaller too. I have a 4-1/2 inch orthicon tube that starts out the same size as a old color neck and gets much bigger down most of its legnth. I'm willing to bet the DY was huge or used a much higher amount of power to sweep, but then again it was only a 4-1/2 inch target at the business end.
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Old 05-08-2012, 08:39 AM
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Amazing what kind of baloney gets onto a forum, Eh?
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Old 05-08-2012, 07:30 PM
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That is spam, and you can do the forum and mods a favor by clicking the red outlined triangle in the top right corner of the spam post to alert the mods to it.

Been a lot of these loonies lately haven't there?.....
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Old 05-10-2012, 11:23 PM
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Quote:
Originally Posted by Electronic M View Post
Been a lot of these loonies lately haven't there?.....
Yes. There has been much banning lately.......they just keep coming.......
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Old 05-11-2012, 12:28 PM
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Maybe making a rule that the first post can only be in the introductions and the person has to have something cogent to the forums to say to get permission from mods or members in order to post elsewhere might cut the spam down?
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Old 06-03-2012, 05:51 PM
6GH8cowboy 6GH8cowboy is offline
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???
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Old 06-06-2012, 10:03 AM
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Also, higher anode voltage in color sets makes a stiffer electron beam. If I remember right, there is an RCA color that loses it's regulator and develops soft vert lock. This is because the vertical is opened near it's limit and is not too easily synced at what would be caused by the overscan.
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Old 08-06-2013, 12:27 AM
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Now i know what the red triangle is for
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