CRT decay

From: Allison J Parent <allisonp_at_world.std.com>
Date: Sun Nov 1 20:35:00 1998

< There shoudln't be any extra hazard from firing electrons at the screen,
< but I am still _very_ curious as to what's happening. I've used 40 or 50
< year old CRTs with no problems, you see.

I have two O'scope crts (3BP1 and a 2AP1) that are still good (they were
purchased as military surplus when I was a teen for homebrew use) and
neither were made much later than 1958 (maybe much older!). I know they
work as the scopes I built with them still operate! The glass
doesn't decay. If the phosphor is peeling it may be that someone has
vented the tube to remove the implosion hazard.

Allison
Received on Sun Nov 01 1998 - 20:35:00 GMT