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I, the copyright holder of this work, hereby publish it under the following license:
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Vacuum tube tester (military) Ecco
Electronic components corp. Tube tester TV-7D/4
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Buizentester (militair) Ecco
Electronic components corp. Tube tester TV-7D/4
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Click on a date/time to view the file as it appeared at that time.
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Commons Attribution-ShareAlike 4.0 International
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Add a one-line explanation of what this file represents
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Commons is a freely licensed media file repository.
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Text is available under the Creative Commons Attribution-ShareAlike License. Additional terms may apply.