Uploaded June 2017 | Updated September 2026, 22 hours ago

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Non-polished and short video of a short-circuited 7189A tube, sitting in a Pioneer SM-83 tube amplifier. The tube apparently has metal fragments inside of the glass bulb, shorting out the grids and plates.

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youtube.com/channel/UC_AsCqaAbUgZ44_-uVAEnMA
vintage computer mainframes & stuff
really deserves more views

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