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At US$495, this is well above the typical used market for the item: it’s higher than the 75th percentile of US$207 and far above the median of US$89, so I’d call it ambitious rather than fair. For a buyer, that means you’re paying a premium that only makes sense if the tube is genuinely exceptional, fully tested, and the provenance really matters to you.
The upside is that these old Mullard-era 12AX7/ECC83 tubes are prized for their tone, low noise when healthy, and collectible appeal, especially with a rare 1958 British-branded variant and gold pins. That said, at this price I’d want hard evidence of strong emissions, low noise/microphonics, and matching if claimed; otherwise the premium is mostly for scarcity, not value.
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.
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