Description
Trusted RF Pentode – UF41 Mullard Vacuum Tube
The UF41 Mullard vacuum tube is a classic B8A (rimlock) RF pentode built for vintage radios and early audio gear. Known for its low noise and smooth signal gain, this tube was engineered by Mullard—one of the most respected names in vacuum tube manufacturing.
Thanks to its compact size and durable build, the UF41 fits easily into tight spaces found in 1950s-era equipment. It works especially well in RF and IF stages, where clean signal handling is critical. Additionally, its stable operation at moderate voltages helps maintain reliable performance over time.
The Mullard UF41 is also valued for its warm, detailed tone. It helps preserve the authentic sound character of mid-century electronics. Moreover, it reduces interference and hum, allowing for clearer audio output in sensitive circuits.
Technicians and collectors alike appreciate its rugged construction. The robust glass envelope and well-designed internals contribute to long-lasting operation. As a result, this tube is a dependable choice for restorations and audio upgrades.
Whether you’re restoring a classic radio or enhancing a vintage amplifier, the UF41 Mullard delivers clean tone and consistent performance. Its legacy of quality, combined with Mullard’s attention to detail, makes it a go-to option for vintage audio purists.





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