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.

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.

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.

Amazing what kind of baloney gets onto a forum, Eh?

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?.....

Yes. There has been much banning lately.......they just keep coming.......

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?

???

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.

Now i know what the red triangle is for