UY41 Mullard OS

Description

Vintage Power Rectifier – UY41 Mullard OS Vacuum Tube

The UY41 Mullard OS vacuum tube is a reliable half-wave rectifier ideal for vintage radios, phonographs, and audio restoration projects. Manufactured by Mullard and labeled “OS” for “old stock,” this tube delivers clean AC-to-DC conversion with consistent voltage regulation and minimal interference—ensuring optimal performance in classic tube gear.

Its compact B8A Rimlock base fits easily into a wide range of European equipment. Moreover, the indirect-heated cathode design helps reduce hum and electrical noise, offering smooth operation that’s crucial for audio clarity. As a result, restorers and hobbyists favor it for enhancing the sonic quality of restored systems.

Handling up to 250 volts, the UY41 provides stable DC output for low- to medium-power circuits. Whether you’re working on a 1950s tabletop radio or a mono amplifier, this rectifier ensures your gear receives clean, dependable power. The Mullard build quality, known for its precision and longevity, adds extra value to each restoration project.

Furthermore, the “old stock” designation means you’re getting a tube manufactured during Mullard’s prime production years—offering both authenticity and long-lasting reliability. Collectors often seek these models for their historical accuracy and proven performance in period-correct builds.

If you’re aiming to restore gear to its original spec or maintain true vintage tone, the UY41 Mullard OS is an excellent choice. It delivers reliable rectification, long service life, and a warm, natural sound that modern replacements often lack.

Choose the UY41 Mullard OS vacuum tube to power your restoration with genuine tone, trusted performance, and lasting value.