Emission Labs strive to supply the best sounding triodes, with the highest possible mechanical and electrical quality. They work the traditional way, and have all critical processes in house. In this way, they depend as little as possible on other companies for technical support. Emission Labs use hard metal for all critical parts of the tube, and produce every part by themselves. This starts with the complete glasswork, and even for the pins of the tube base they have their own tools. This is how they achieve reproducible quality.