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6X4 / 6202 / EZ90 types
This GE 6X4 rectifier tube has gray plates and a halo getter. The white print on the label has the GE logo and 188-5 factory code (Owensboro, Ky), and "6X4 U.S.A." is etched in the glass. Tube tests as new.
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This early 1960s military spec 6X4 Raytheon tube has black "X" style plates and a windmill getter. The red print on the label reads JRP-6X4W (label condition varies). Tube tests as new.
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This 1960s RCA 6X4 rectifier tube has black plates and a D-getter with two dimples. The white or red print on the glass has the RCA logo (label conditions vary from excellent to partial or missing). Tube tests as new.
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This RCA 6X4 rectifier tube has black plates and a halo getter. The red print on the glass has the RCA logo (label may be partial). Tube tests as new.
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This Sylvania 6X4 rectifier tube has shiny black plates and a halo getter. The green print on the label has the Sylvania logo. Tube tests as new.
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This 1951 Sylvania 6X4 rectifier tube has shiny black plates and a windmill getter. The yellow print on the label has the Philco logo. Tube tests as new.
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This late 1960s military spec Sylvania 6X4WA rectifier tube has shiny black plates and a halo getter. The green print on the label reads JAN 6X4WA or JHS 6X4WA. Tube tests as new.
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This early 1960s Tung-Sol 6X4 rectifier tube has black plates and a D getter. The white print on the glass has the Tung-Sol logo. Tube tests as new.
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This 1961 military spec Tung-Sol JTL-6X4WA rectifier tube has black "X" style plates and a curved D getter. The white print has the Tung-Sol logo and reads "JTL-6X4WA" or "JTL-6X4W." Tube tests as new.
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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.
PLEASE NOTE: Orders placed Feb. 6-Feb. 20 will ship Tuesday Feb. 21.
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