2A3C

The 2A3C uses the slender die of the 2A3B model, combined with a double-layer mica structure; it is housed in a highly transparent 300B glass envelope. A new type of spring filament is used for fixation, and ultra-high vacuum conditions are achieved, ensuring stability and reliability. In terms of appearance, it resembles the 300B model, but it features many attractive details. The double-layer mica structure enhances its integrity and helps to prevent the occurrence of microphone effects. The transparent quartz glass envelope, along with gold-plated terminals, gives it a sophisticated look. What??s truly pleasing about it is its unique musical performance capabilities.