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5AR4 / GZ34 tubes
This 1972 Mullard GZ34 / 5AR4 full-wave rectifier tube has plates with 7 notches and a hole in the centering pin (f32 series). The yellow label has the Sylvania logo (partial). The Blackburn, UK factory code is etched in the glass. Tests as new.
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This Valve Art 5AR4 / GZ34 full-wave rectifier tube has welded gray plates and a halo getter. The gold print on the glass has the Valve Art logo and says "O&J, China." Tube is tested for tight section match and ships in its original box.
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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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