Shuguang KT66 KT88-98 (KT88) KT94 KT100A (KT100) Vacuum Tube We supply all the Shuguang, Beijing, Shanghai, Namjing vacuum tubes. Please feel free to email us for any inquiries. We supply all the Shuguang, Beijing, Shanghai, Namjing vacuum tubes. Please feel free to email us for any inquiries