I've just broken my CRT monitor, now I'm worried...

Sam Goldwasser ha escrito:

I was in an electronics store a few months back and they had a number of monitors there. some fairly decent used crt monitors and a few new LCDs. they were all displaying the same - a black background with a digital clock readout in green numbers. The lcds had this horrible, smeary sort of colour-bleed aura around the numbers. The CRTS were ultra sharp in comparison. At a third of the price! some people will put up with all kinds of crap just to save a few inches of room on their desks....

-B.

tossed in a skip and

Do they still use mercury to flash the getter in the CRT gun assembly? I'd be a little worried about that possbility.

Do you have any technical info sources that show mercury was ever used in getters?

Mercury is not good for you, but contacting it once in your life won't hurt anything. I wonder sometimes about those compact fluorescent lamps that so often end up in the trash, every one of them contains mercury.

I doubt it. Mercury is not that reactive. He's probably just thinking of the shiny getter coating and associating it with mercury.

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How many of us have played with liquid mercury as kids?

Please stand up (if you still can). :)

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Would it be any good for making a thyratron though?

How many people are "mad as a hatter" today?!

On, or off usenet?

-- Service to my country? Been there, Done that, and I've got my DD214 to prove it. Member of DAV #85.

Michael A. Terrell Central Florida

I got my vacuum technology mixed up. Mercury is used in some kinds of vacuum pumps. Barium is the most used material for a vacuum tube getter.

You might be thinking of barium and/or strontium cathode emissive coatings.

Right. Older diffusion pumps used mercury. Newer ones use special low vapor pressure oils. But both types are rather obsolete now.

--- sam | Sci.Electronics.Repair FAQ:

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Important: Anything sent to the email address in the message header above is ignored unless my full name AND either lasers or electronics is included in the subject line. Or, you can contact me via the Feedback Form in the FAQs.