Stock photo: Old vacuum tubes
Stock photo: Old vacuum tubes on white background
Stock photo

#1868676 Old vacuum tubes by dmitry_rukhlenko Stock photo dmitry_rukhlenko

L JPG 2504 x 2504 pixels
8.3" x 8.3" | 21.1 cm x 21.1 cm @ 300dpi JPG
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Keywords

airtight amplifier anode cathode electrical electronic electronics isolated isolated on white lamp pentode triode tube vacuum valve