RCA 21CT55 B8802897 is Alive! - Videokarma.org TV - Video

		Videokarma.org TV - Video - Vintage Television & Radio Forums > Early Color Television
RCA 21CT55 B8802897 is Alive!

Notices

Time to get this site upgraded, so we are passing the hat around. We appreciate any donations. Seriously, even a dollar helps. The payment page may be found here - https://www.audiokarma.org/support.html


	We appreciate your help in keeping this site going.

Thread Tools

Display Modes

#10

12-31-2011, 07:21 PM

Penthode

VideoKarma Member

Join Date: Jun 2009

Location: Kitchener/Waterloo Ontario Canada

Posts: 1,463

I have seen this phenomenon on black and white and color tubes over the years. I suspect the tube is going a bit gassy and the cathodes do contaminate. The higher temperature cleans off the cathodes. That's my guess.

I suspect that over time the emission will diminish somewhat and you will have to burn the cathodes again.

Audiokarma

« Previous Thread | Next Thread »

Posting Rules
You may not post new threads You may not post replies You may not post attachments You may not edit your posts BB code is On Smilies are On [IMG] code is On HTML code is Off Forum Rules

Forum Jump

All times are GMT -5. The time now is 08:32 AM.