rear panel high frequency power amplifier with vacuum tubes black and white |
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| navigate by keyword : amplifier amplify analog antenna big black cabinet circuit close closeup component connector control controls device electrical electronic electronics engineering equipment frequency glowing high large metal modern nobody object obsolete panel plug polished power powerful radio rear receiver retro shiny solid switch system techno technology transceiver tube tubes tumbler tuner tuning vacuum view vintage voltage white |
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| Close up view of a rear panel of a high frequency power amplifier with vacuum tubes in black and white |
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