Shuguang Electronics（曙光電子）300B-98です。使用時間は不明ですが、それほど長くないようです。音も300Bらしい音色です。WE300Bを手に入れたので処分したいと思います。２本での出品です。

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Shuguang 300B-98 (300B) Vacuum Tube_Triode_Shuguang Tube_Analog Metric - DIY Audio Kit Developer

Shuguang 300B-98 Electronic Tube 300B-98B 300BS-B 300B-T WE300B Vacuum Tube Brand New and Genuine Pairing

Amazon.com: Changsha Shuguang Electron Tube 300B-98 Elm Block White Porcelain Factory Direct s for one Year Replacement : Musical Instruments

Amazon.com: Changsha Shuguang Electron Tube 300B-98 Elm Block White Porcelain Factory Direct s for one Year Replacement : Musical Instruments

Buy Standard Quality China Wholesale Shuguang 300b-98 Vacuum Tube For Amplifier Supplier(300b-98b/300ba/300bc/we300b/300bs-b/300b-z) Direct from Factory at Leisure Audio Electronical Co.,Ltd | Globalsources.com

Amazon.com: Changsha Shuguang Electron Tube 300B-98 Elm Block White Porcelain Factory Direct s for one Year Replacement : Musical Instruments

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Shuguang 300B-98B / Mesh Plate Power Vacuum Tube (Matched)

Shuguang 300B-98 Power Vacuum Tube (Matched)

300B-98 曙光電子 - 中古オーディオ 高価買取・販売 ハイファイ堂

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Amazon.com: Changsha Shuguang Electron Tube 300B-98 Elm Block White Porcelain Factory Direct s for one Year Replacement : Musical Instruments

Changsha Shuguang Electron Tube 300B-98 Elm Block White Porcelain Factory Direct s for one Year Replacement

Shuguang electronic tube 300b-98 generation noble voice full true golden lion EH 300B 300b-t 300BZ 4300