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Old 1st Jan 2014, 1:17 pm   #8
boxdoctor
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Join Date: Sep 2010
Location: Ripley, Derbyshire, UK.
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Default Re: Rejuvenating Magic eye Valves?

I wonder if the loss of brightness is always entirely due to loss of emission by the cathode.
It could be that the phosphor coating on the target might be deteriorating. Targets often look discoloured in the illuminated area. In that case, it would be very difficult to ever achieve the original brightness.
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