CurtPalme.com Home Theater Forum

**Curt Palme** · Posted: Tue Dec 18, 2007 5:04 pm Post subject: BANG!

NEC PG tube, too much pressure in it. The cool thing about this tube is that the middle of the CRT face blew inward, leaving the rest of the tube envelope and safety front glass intact. Sweet! Thumbs Up

Now if I could only take pix that were in focus. Thumbs Down

**kal** · Posted: Tue Dec 18, 2007 5:32 pm Post subject:

Want to avoid this happening to you? See: http://www.curtpalme.com/Bleeding_CRT_Tubes1.shtm

Kal

garyfritz · Joined: 08 Apr 2006 Posts: 12088 Location: Fort Collins, CO

That WAS lucky that only the tube face blew, thus trapping all the glycol inside. I thought when a tube imploded, usually the whole thing went kaflooey.

wallace123456 · Joined: 14 Aug 2006 Posts: 2236 Location: Northwest VA area

perisoft · Joined: 29 Aug 2007 Posts: 2920 Location: Ithaca, NY

I can see that one on ebay... "Tubes look fine, but have no way to test... one tube may have some wear"

Fujifrontier · Joined: 20 Oct 2007 Posts: 354 Location: San Antonio, Texas

That's what happens with too much glycol??????? I thought it would be forced back out the vent hole. HAHA. I'd like to have seen it happen.

Mark_A_W · Posted: Wed Dec 19, 2007 3:22 am Post subject:

Interesting that the THICK tube face glass broke and the thin outer glass didn't. We've seen any number of the other way round breakages.

jkruger · Joined: 24 Oct 2007 Posts: 2435 Location: Carlsbad, CA

Maybe the vacuum in the tube helped it break to the inside....

dbaisey · Posted: Wed Dec 19, 2007 3:31 am Post subject:

This is strange, the face glass should have cracked before the tube envelope. I'm wondering if the tube face could have etched and weakened. Use a dud to test the chassis. Check on the video input to see if the raster was riding on the edge of the right side in the photo. Doug

kschmit2 · Posted: Wed Dec 19, 2007 8:50 am Post subject: