1953 Arvin 8213 Restoration

[Electronic M]

Originally Posted by Gleb

It sounds strange that the HV cage had to be cutted while replacing the CRT. The metal cone of the 'old' CRT was supposed to be pretty far from any metal parts to prevent arcing. Is the glass CRT that much bigger than the metal/glass one?

Good luck in restoration of such a wonderful television!

Most American CRTs where there were equivalent glass and metal types the bell of the glass tube was shifted back 1-3" compared to the metal.

The metal tube would place the screen right at the edge of the flare, but the glass would place the screen 1-3" out from that and leave a flat side around the screen where a mounting strap could be placed...

Despite many metal glass pairs having basically the same socket to screen dimension, the rear shifted bell meant a shorter neck and repositioning of the yoke...If you've ever converted an American metal CRT set to a glass CRT you probably will have had some fun mounting hardware modifications to do.