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Stockphotos.ro (c) 2025. All stock photos are provided by Dreamstime and are copyrighted by their respective owners.
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| navigate by keyword : amplifier anode antique applied audio bulb cathode diode discharge dual effect electric electricity electron electronic emission emitting equipment filled gas glass glowing high illustration incandescent ionized lamp light music old pentode photoelectric phototube physics radio rendering retro science sound steampunk stereo technology television tetrode thermionic triode triple tube tubes tuner vacuum valve vintage voltage |
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| Vintage thermionic tubes: tetrode, triple-triode and dual pentode, 3D rendering |
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Stockphotos.ro (c) 2025. All stock photos are provided by Dreamstime and are copyrighted by their respective owners. |
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