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CBS-Hytron 5U4GB Vintage 1960s Rectifier Tube NOS in Box Tested / Guaranteed

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MPN:
5U4GB
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  • Vintage NOS CBS-Hytron 5U4GB rectifier tube with GZ base marking, in original box. Authentic USA-made full-wave rectifier perfect for Collins 516F-2 low voltage B+ section. Ideal for vintage ham radio restoration, Collins S-Line gear, and tube equipment.
  • Vintage NOS CBS-Hytron 5U4GB rectifier tube with GZ base marking, in original box. Authentic USA-made full-wave rectifier perfect for Collins 516F-2 low voltage B+ section. Ideal for vintage ham radio restoration, Collins S-Line gear, and tube equipment.
$19.99
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CBS-Hytron 5U4GB Vintage 1960s Rectifier Tube NOS in Box Tested / Guaranteed

 This Tube and all others I sell, have been tested on a B&K Dyna-Quik Model 700 Dynamic Mutual Conductance Tube Tester and tests at or close to a NOS full Emission /Tube.

Vintage NOS CBS-Hytron 5U4GB Rectifier Tube – Original Box, GZ Base MarkingPristine New Old Stock CBS-Hytron 5U4GB full-wave rectifier tube in its original box. Features the distinctive "GZ" marking on the base (factory/date code) and strong vintage cosmetics.These are excellent, period-correct replacements for the low-voltage B+ section in the Collins 516F-2 power supply. CBS-Hytron tubes are respected for their rugged black-plate construction and reliability in demanding vintage applications.Why this tube?
  • True USA-made NOS – preferred by Collins enthusiasts and purists for original performance, natural sag, and authenticity over modern reproductions.
  • Direct drop-in compatibility with Collins S-Line / 516F-2 power supplies.
  • Ideal for maintaining or restoring vintage ham radio gear and tube amplifiers.
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