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This from the TCO 95 Standards description:
Emissions
- Considerable reduction of magnetic and electrical fields.
- Minimized electrostatic fields.
Operative concern for the tele is a lack of these reductions. But even at their worst, generally of little concern, unless you plaster your face to the front of the tele and sleep with it there. Most likely long term effect would be a severe sunburn. Years of it might cause cataracts.
well i guess ill let the rad screens stay, have been used to them.
that wraps up about 95% of the discussion. in the end id just mention the rad screen measurements from one tco certified monitor of 22inches at 1 volt and another non tco certified lcd with wled backlight 24 inches at 1.5 volts which were surprising since these were more than the CRT while the lcds are considered far more benign. this matters for people who spend most of their time on the displays
What type of radiation? When we made CRT monitors we measured many different types of radiation.CRT monitor radiation measurement project
I designed CRT monitors for Sony and they need aligned.The Trinitron doesn't have to be aligned, if I remember right.
The Trinitron didn't require convergence adjustments.
This article: https://en.wikipedia.org/wiki/Trinitron says no adjustments post manufacturer.
What is the mains voltage and frequency where the OP lives? Is the US and 120 VAC or some 240 V system?
That shield
I used to hear it as a thump in early sets made in 1968.
If this is a Sony Trinitron monitor
What type of radiation? When we made CRT monitors we measured many different types of radiation.
I designed CRT monitors for Sony and they need aligned.
Toward the end the 'government' was very hard on us about 'radiation'. We made special yokes that reduced magnetic radiation at 60-80hz and 30-100khz. (vertical and horizontal frequency of a typical 21" CRT monitor) We put shielding on transformers to keep the 100khz power frequency from radiating. CRTs got more metal. The plastics received special metal spray on the inside. The video amplifiers went into metal boxes to keep the RF radiation down. We tried to keep the HV down.
well you can use a copper mesh with 100 dots per inch instead of the rad screen and get the same results.'radiation screens' are just a scam .
What is connected to the other end of the VGA cable?
.
Usually a NTC resistor applies power to this degauss coil when the monitor starts up to demagnetize the CRT.
If this is a Sony Trinitron monitor, there is a metal grid barely visible from the front. It's part of the monitor design. The Trinitron doesn't have to be aligned, if I remember right.