Mullard PL504 Valve Tube NOS Boxed

This listing is for one (1) Mullard PL504 Valve / Vacuum Tube. It is New Old Stock (NOS) and comes in its original box. The box may show some signs of shelf wear, creasing, or minor damage consistent with its age and storage, but the valve itself is unused and in pristine condition. [Crucially, if tested, add details here]: The valve has been tested for emissions and shorts on a [Your Tester Model, e.g., AVO VCM163] and tests strong, meeting or exceeding manufacturer specifications. [If untested, state this clearly]: Please note: This valve is untested and sold as-is. It is recommended for experienced collectors or for use in restoration projects where testing can be performed prior to installation. This PL504 valve is ideal for restoring vintage televisions, radios, or audio amplifiers that require this specific component.