This listing is for vacuum tubes that have all been tested individually using a handheld vacuum tube tester (emission measurement) and confirmed to be in good working condition. Included photos show the actual items for your reference. On our tester, new unused tubes of the same model typically measure around 80, which can be used as a benchmark. Some tubes have faded markings, with identification numbers noted separately. Please review the photos carefully for condition details. We accept combined shipping. We are located in Japan.For electrical products, check the manufacturer and product and convert to the voltage of each country.Please note that we have many second-hand products (100V) that were used in Japan for sale. If you have any questions, please feel free to contact us at any ti.
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