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