I removed the vertical osc. tube 6SN7GT and the vertical output tube 6AH4GT and had them both tested . The 6AH4GT tested fine but the 6SN7GT was below minimum output and was shorting out intermittently. I thought just maybe,just maybes would solve the problem and I would get "snow" on the screen . My luck ran out when I turned the tv on. I have the same basic pattern that I did before. What should I do next, check/replace capacitors? Thanks in advance for any input.
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