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