CRT experts please

[radio nut]

I """think"""" 500uuf......

Could Muntz for this set have ordered uncoated crt's?
I am very sure that the diagram does NOT show a line from the crt coating to ground.

But It calls for a 16rp4 crt.

I could scrub the coating from the extra crt......but.....that just does not seem right.
I had my friend check and there is NOT a grounding strap or stiff wire touching the crt anywhere, or something broke off that could be it.

[jr_tech]

I have a slightly later photofact, #116, folder 10 for a M31,32,33 Muntz using a 16RP4. The grounded coating is clearly shown, but there is no cap shown in the HV cage. The grounding for the dag is provided by a "finger" about 1/2 inch wide and about 3 inches long mounted at the top center of the yoke mounting plate... check above the yoke for a hole or broken "finger"

jr

[dieseljeep]

[QUOTE=radio nut;3053511]I """think"""" 500uuf......

Could Muntz for this set have ordered uncoated crt's?
I am very sure that the diagram does NOT show a line from the crt coating to ground.

But It calls for a 16rp4 crt.

I have a 20" Muntz, where the CRT was necked. I removed the broken CRT and trashcanned it. I don't remember seing a aquadag coating on it. I also remember seeing other Muntz's without it as well.
The tube had a rubber stamping stating: American Television, Chicago,Il.
IIRC, Those CRT's, had a slightly bluish white phosphor, when compared to other sets next to it.

[wa2ise]

On a CRT with missing 'dag, would using aluminum foil glued to the outside where the 'dag should be work? Of course such foil would be grounded.

[bandersen]

Originally Posted by wa2ise

On a CRT with missing 'dag, would using aluminum foil glued to the outside where the 'dag should be work? Of course such foil would be grounded.

Sure, I've done that a few times

[radio nut]

[QUOTE=dieseljeep;3053944]

Originally Posted by radio nut

I """think"""" 500uuf......

Could Muntz for this set have ordered uncoated crt's?
I am very sure that the diagram does NOT show a line from the crt coating to ground.

But It calls for a 16rp4 crt.

I have a 20" Muntz, where the CRT was necked. I removed the broken CRT and trashcanned it. I don't remember seing a aquadag coating on it. I also remember seeing other Muntz's without it as well.
The tube had a rubber stamping stating: American Television, Chicago,Il.
IIRC, Those CRT's, had a slightly bluish white phosphor, when compared to other sets next to it.

The original crt had american television on it also...But It had to be cheaply made, the phosphor did not even cover the entire front screen area . on the top right side there is a section about one quarter of an inch tall that is uncoated