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