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At US$795, this used Mullard 12AU7 is ambitiously priced compared to the obvious alternative of reissues like the current Mullard 12AU7/ECC82, which typically sell for around US$18 to US$22 each. The listing sits well above the 75th percentile of US$649 and exceeds the median of US$504 by nearly US$300, making it a tough sell unless the condition is exceptional or the tube is a verified vintage original from the Mitcham factory.
The Mullard 12AU7 remains well-regarded for its low noise and low microphonics, offering a smooth, musical character that many audiophiles prefer over modern equivalents. If this is a genuine vintage piece in original-owner condition with no plate semi-circle (a reliable indicator of authenticity), the rarity and sonic upside justify some premium, but at US$795, buyers should verify the tube’s testing results and physical integrity before committing.
Independent perspective — not a price guarantee. Always verify condition, accessories and provenance before purchase.
Captain Stanley R. Mullard founded the Mullard Radio Valve Company in 1920 in the United Kingdom, initially to produce high-power transmitting valves for the British Admiralty. Drawing from his engineering background and passion for music, he expanded into audio components, creating vacuum tubes renowned for their reliability and superior sound quality. Acquired by Philips in the 1920s, the brand grew into a dominant force in valves and semiconductors, with production spanning facilities in Mitcham and Southampton.
Mullard focused primarily on vacuum tubes—or "valves"—that powered high-fidelity amplifiers and professional recording equipment, alongside early transistors and audio drivers. Historical products like the 1960s Mullard 510 valve amplifier exemplified their expertise in hi-fi amplification, while their hand-assembled valves became staples in studio and home systems. Though not a modern maker of speakers, turntables, DACs, or headphones, their components influenced entire audio chains.
Today, Mullard holds a revered position as a vintage high-end icon among audiophiles and collectors, celebrated for the "Mullard sound"—warm, detailed, and musical. Reissues and NOS tubes command premium prices in the boutique market, cementing its legacy over a century of craftsmanship amid technological shifts.
See all Mullard listings on RADAR.
