Totally Tweed! The preferred OEM tube of '50s-era Fender Tweed Champ and Deluxe amplifiers. The Tungsol 6V6 has a geometry designed to safely handle the higher voltages used in guitar amps – plus heavier plate and grid materials. The result: better mids and bottom while keeping the smooth top of the classic 6V6s. The Tungsol 6V6 breaks up evenly from low E to high up the neck. Blues players will LOVE these tubes for the way they sing! All tubes are new in their original box. Made in Russia.