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#1
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Try your soldering iron on the grid of the output tube. If louder than the volume control lug, trouble probably in the first audio section. Detective work, Mr. Watson.
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Reece Perfection is hard to reach with a screwdriver. |
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#2
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kind of reminds me of an at home radio repair course I have from the 1930s: since the average radio owner did not have any test gear, they instructed you to put your finger on the grid caps of each tube to determine which stage was malfunctioning-pretty clever, and something I do on my sets when trying to chase down a gremlin or two.
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