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Matched Pair ShuGuang WE300B PLUS Replica Western Electric Vacuum Tube 300B
Item specifics
Type: Audio Tube
Model: WE300B
Substition: 300B
Brand: Shuguang
Application: tube amplifier
Socket: 4 pins
Material:Glass
Glass part Width: 5.5cm
Height without pin: 11cm
Height with pin: 12.5Cm
Diameter of base: 3cm
Packaging Details
Unit Type: one matched pair in paper box
Factory history and overview
1. Built in the year 1958.
2. Start producing 6Z4 tube in 1963.
3. manufactured 3.7 millions tubes in 1965. Including：6Z4、6P1、6A2、6K4、6N1、6N2、6N12P、6P6P、6L6、FU-7、FU-5.
4.
1971—1979: Designed and produced 6P14P、6P15P、6P17P 6C16、6BK4、6J8P、6P16P、6P18P、6N18P、FU-811、6C41P tubes.
1980—1985: Designed and produced EL34A、6P16PA、6T51、6T50(7092)、FU-812、GL-211、2A3 6P16P tubes.
1986—1991: Designed and produced KT88、6550、572B、50CA10.
1991—1995: Designed and produced 300B、5AR4、6L6WGB、300BC、KT94.
1996—1999: Designed and produced EL156、KT77、KT66. and upgraded 300B、KT88、6550、6L6 to: 300B-98、KT88-98、6550-98、5881A。
2000: Designed and produced 12AX7、6P14.
2001: Designed and produced 12AT7、12AU7.
2002: Designed and produced GE6L6、5881A、6BK4C.
2003: Designed and produced 12AX7M、EL34B、300BS-B、300BS-C、EL37.
2004: Designed and produced 2A3B、2A3C、EL84、845B、845C、EL84L.
2005: Designed and produced 7025A、5751、5Y3GT、EL34M、SG-50.
2006: Designed and produced 805A、SG205、6L6WGS、6L6GC.
2007: Designed and produced SG101、UF101.
2008: Designed and produced 6V6GS、EL34HT. and CV181-Z、6CA7-Z、KT66-Z、2A3C-Z、E、KT88-Z、300B-Z.
2009: Designed and produced GZ34、6V6GTW、6V6GTP.
2010: Designed and produced 12AX7Ⅲ、12BH7、310、EL34BW.
2011: Designed and produced 12AX7Ⅰ、12AX7MB.
2012: Designed and produced 845-T、805A-T、211-T、6CA7-T、CV181-T.
2013: Designed and produced WE300B、WE274，12AX7-T、12AU7-T、KT88-T、6DJ8.
2014: Designed and produced WE845、12AT7-T、6SL7-T.
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