Items where Subject is "600 Technology (Applied sciences) > 621 Applied physics > 621.3 Electrical, magnetic, optical, communications, computer engineering; electronics, lighting > 621.38 Electronics, communications engineering > 621.381 Electronics > 621.381 5 Components and circuits > 621.381 51 Electronic tubes"

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This list was generated on Tue Oct 26 21:30:19 2021 WIB.