CRT experts please

[jr_tech]

I think that a bit of extra filtering likely would not cause a problem with the HV supply, BUT the HV would pack a greater punch if you should get across it.

jr

[radio nut]

Well Jr Tech....You were right! On Sunday I went back to the diagram and sure enough it calls for a coating on the crt. Well, I do have a really strong crt with an intact coating to put in it and I did. I also added a ground connection.
The tv has a really good picture now plus it has the shut off dot! Now the sound has a loud type of hum so I will have to readjust the sound trap and see what happens.

[Reece]

It is possible for you to put a new coating on yourself. I forget the name of the product but it has been mentioned on the forum before. Someone will know the name of it.

[lnx64]

Slip-plate?

[Phil Nelson]

Another good product for replacing aquadag is Aerodag G. Easy to spray on, and it dries in a few minutes.

Phil Nelson

[snelson903]

Originally Posted by Phil Nelson

Another good product for replacing aquadag is Aerodag G. Easy to spray on, and it dries in a few minutes.

Phil Nelson

where can you buy aerodag ,and how is it made conductive, tell me more if you have the info im interested.

[bandersen]

Originally Posted by snelson903

where can you buy aerodag ,and how is it made conductive, tell me more if you have the info im interested.

I got mine from Ted Pella, Inc. http://www.tedpella.com/semmisc_html...#anchor1349940

It's finely powdered graphite, which is conductive, mixed with is some aerosol bonding agent. I've also used SlipPlate and think it's easier to work with because it produces a thicker, tougher surface.

[radio nut]

The uncoated crt is weak and has the tv station test patterned burned into the screen. So I will keep it for the set that needs one in order to run. The crt I put in tested 800 or so on my B&K (before I broke the meter on it!!!). The picture is sooooo much better now! I am thinking about posting all of the final pictures here soon. Oh and yes someone did say to use slip plate from grainger for the aquadag. I drive past there on my way to work so I will give it a shot.

[josephdaniel]

Could you post a picture of the burn in if you can photograph it sounds like it would lok kinda neat.

[radio nut]

Originally Posted by josephdaniel

Could you post a picture of the burn in if you can photograph it sounds like it would lok kinda neat.

I will give it a shot......will not be til sunday "probably" I agree that would be kinda cool to post it. I believe it is the classic"indian" test pattern.....
would be cool to find out that I am wrong and have someone post the correct pattern

[radio nut]

I need to add that Stromberg6 was also right.... He pulled up the specs for this crt and he did state that it called for a coating to be in place.