[HECnet] VT420 with a "worn out" display

Cory Smelosky b4 at gewt.net
Fri Oct 4 19:29:38 PDT 2013


On Fri, 4 Oct 2013, Dave McGuire wrote:

On 10/04/2013 02:07 PM, Ian McLaughlin wrote:
Please note that a discharged CRT can build up a static charge again
just by sitting on a shelf.   Always re-discharge the tube when coming
back to a tube you've left alone for a while.

This is dielectric absorption.   It happens with all capacitances,
including capacitance in things that are not capacitors, like CRTs.

                        -Dave



I'm suddenly reminded of my largely unrelated habit of always touching a door handle with the back of my hand first and never the fingers or the palm.

-- 
Cory Smelosky
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