NOS Mullard GZ34 / 5AR4 Rectifier Tube
Made in Great Britain | Tested & Guaranteed | Limited Stock
The holy grail of rectifier tubes. The original Mullard GZ34 is known for its ultra-reliable construction, and its rich, musical voice. Perfect for classic Marshalls, Voxes, Hi-Fi rigs, and boutique builds that demand the best.
Why it’s special:
Smooth tube rectification with no harshness
Long-life British construction (Blackburn plant)
NOS (New Old Stock) with factory printing and crisp pins
Preferred by tone chasers for its feel and durability
Guitarists love it. Audiophiles swear by it.
If you know, you know.
Limited supply. These don’t come around often.
Ships fast. Backed by the Fuzz Audio Guarantee.
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See our full guide to vintage tubes or check our shop for more NOS treasures.