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标题: Vacuum Tubes Needed? We Have 5,000 In Supply. [打印本页]

作者: ChasityGow 时间: 2025-4-8 23:16 标题: Vacuum Tubes Needed? We Have 5,000 In Supply.

Nearly all huge power tubes used in radio transmitters use thoriated filaments, as do some glass tubes used in hi-fi amps.

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