Upgrade your tube amplifier with the 4-Pin 300B Socket featuring gold-plated pins. Designed for 300B and compatible UX4-based tubes, this premium socket ensures excellent conductivity, minimal signal loss, and long-term reliability. Perfect for hi-fi and SET (Single-Ended Triode) amplifiers, it provides a secure fit and stable connection for your tubes, while the gold plating helps prevent oxidation and maintain consistent performance over time. Ideal for audiophile builds, vintage amp restorations, and high-end audio applications.