Features: Premium gold plated and tin coated contacts secure optimal conductivity and oxidation resistance, specifically engineered for B9A tube socket like 12AX7/ECC83 in sound systems to minimize signals loss and distortion. Reinforced phenolic base with multiple solder lugs and sturdy mounting feet enables secure point to point wiring, featuring bronze construction for enhanced durability in high temperature tube amplifier environments. Designed for audiophiles, tube amplifier builders, and professional sound engineers seeking stable vintage styles wiring solution for premium preamp stage and boutique guitar amplifiers. Essential for constructing high end vacuum tube preamplifiers, restoring classical sound gear, or upgrading modern systems requiring authentic through hole soldering connection. Combines gold low contact resistance with tin's superior solderability, delivering studio grade signals integrity for audiophile grade 12AU7/ECC82 circuits while preventing joint brittleness in prolonged use. Specifications: Component : Copper Height: about 17.5mm/0.68inch Part number: GZC9-C-1-G Package Includes: 5xTube Socket note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item.