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5U4G / 5U4GB types
Price: From $19.00 to $39.00
This National Union 5U4G full-wave rectifier tube has an ST bottle, ribbed black plates, and a bottom D getter. Tube tests as new.
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This Raytheon 5U4G full-wave rectifier tube has an ST bottle, ribbed black plates, and a bottom D getter. The black base has yellow print with the Raytheon logo. Tube tests as new.
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This1950s RCA 5U4G rectifier tube has an ST bottle, ribbed black plates, and a top getter. The full black base has silver print. Tube tests as new.
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Price: From $39.00 to $59.00
This RCA 5U4G full-wave rectifier tube has an ST bottle, smooth black plates, and a top or bottom getter. The full black base has silver print. Tube tests as new.
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Price: From $19.00 to $29.00
This rare CBS 5U4GB full-wave rectifier tube black plates and dual D getters. The short bottle has "5U4GB" etched in the glass. The red print on the base has the CBS logo. Click "more info" for current availability.
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This 1960s 5U4GB rectifier tube was made by GE and labeled for Amperex. It has gunmetal gray plates and a side getter. The orange print on the glass has the Amperex globe logo (partial). Tube tests as new with balanced diode sections.
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This 1960s GE 5U4GB full-wave rectifier tube has gray plates and a side O or side D getter. The tall bottle has "5U4GB U.S.A." and the dot pattern characteristic of GE tubes etched in the glass. Tube tests as new.
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Price: From $24.00 to $29.00
This RCA 5U4GB full-wave rectifier tube has black plates and a side O getter. The bottle has "5U4GB USA" inscribed on it and the black base has red or silver print. Tube tests as new. Click "more info" for current availability.
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This 1960s RCA 5U4GB full-wave rectifier tube has black plates and a top D getter. The tall bottle has a white or red RCA label and "5U4GB" inscribed on the glass. Tube tests as new and ships in its original box or in a new white box.
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Price: From $20.00 to $22.00
This Sylvania 5U4GB rectifier tube has black plates and a top halo getter. The black base has yellow or red print with the Sylvania lightening logo. Tube tests as new and ships in a new white box. Click "more info" for current availability.
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TC Tubes specializes in precision testing and matching of vintage and new production vacuum tubes for guitar & bass players, audiophiles, and DIY tube audio enthusiasts. Our website features secure payment options and fast, convenient shipping around the world.
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