28 Dec
2005
28 Dec
'05
11:15 a.m.
On 12/28/2005 at 1:51 PM Scott Stevens wrote:
> I really doubt you could implode the CRT by
accidentally hitting that
> board, unless you were using a sledge hammer or something...
I've disposed of many CRTs by snapping off the tip of the evacuation stem.
Admitting atmosphere through the stem actually reduces stresses on the
tube as internal pressure equalizes with the atmosphere over the few
seconds that the process takes.
The big issue with destroying CRTs is making sure that they're kept out of
the landfill. The frit seal material used to attach the face of the tube
to the funnel section contains quite a bit of lead. CRT's are safer to
transport and handle if the vacuum is removed from the tube before
disposal.
Cheers,
Chuck