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sony trinitron

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    Corona discharge in Sony Trinitron CRT TV

    I recently got a free Sony Trinitron KV-27TS20 CRT TV (assembled in San Diego in April 1990). I opened it and didn't see anything obviously broken. The "serviceman label" insides says that the anode potential is 28 kV. It works when powered on, but there's a corona discharge from a part that's...

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