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Originally Posted by rob Cashin
*******crackled and hissed like something was burning up. sorry typo. i didnt smell smoke though but im sure something fried. it only did it though when i shut it off...
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Sounds normal if it's a transient 'crackle' lasting a second or two. As the High (positive) Voltage inside the CRT drops rapidly to zero, a negative-going charge is coupled capacitively to the outside of the CRT glass.
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...and turned it back on.
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Again, normal if the crackle lasts only a second or two. As the HV comes up, a positive-going charge is coupled capacitively to the outside of the CRT glass.
If the hiss/crackle continues while the set is running, that would indicate a problem.