Valvo (Mullard) GZ34 NOS pair

Matched Pair NOS Valvo GZ34 Rectifier Tubes – Mullard Made – Tests Strong – Rare Vintage European Pair

Up for sale is a matched pair of NOS Valvo GZ34 rectifier tubes, manufactured by the legendary Mullard factory and tested strong.

Among vintage rectifier tubes, the Mullard-made GZ34 is widely considered the gold standard. Famous for their exceptional reliability, long service life, and superior voltage regulation, these tubes have been the preferred choice for vintage Marshall, Vox, Fender, Hiwatt, and high-end hi-fi amplifiers for decades.

These Valvo-branded examples were produced by Mullard and offer the same renowned construction and performance that have made vintage Mullard GZ34s some of the most sought-after rectifiers ever made.

Features:

• Genuine NOS (New Old Stock) Valvo GZ34 rectifier tubes
• Manufactured by Mullard
• Matched pair
• Both tubes test strong
• Legendary British-made quality and reliability
• Excellent for vintage guitar amplifiers and hi-fi equipment
• Smooth response, tight bass, and stable voltage regulation
• Increasingly difficult to find, especially in matched NOS pairs

Whether you're restoring a vintage amplifier, upgrading a boutique build, or adding a premium set of rectifiers to your collection, this pair represents some of the finest rectifier tubes ever produced.

Why Vintage Mullard GZ34s?

• Exceptional durability and lifespan
• Preferred by collectors and professional amp technicians
• Known for maintaining strong performance under demanding operating conditions
• Highly desirable for vintage Marshall, Vox AC30, Fender Bassman, and many other classic amplifiers

Please review all photos carefully for date codes, construction details, and overall condition. Feel free to contact me with any questions.

Professionally packed and shipped with care. Check out my other listings for additional NOS Mullard, Philips, Telefunken, Amperex, and other vintage tube treasures.