Deutsche Elektronenröhren Manufaktur celebrates 5 years of ELROG tube production. In these five years, the tube portfolio has expanded to the 14 types shown above. The latest addition is the ER5U4G on the front.
The Deutsche Elektronenröhren Manufaktur started their venture with ER211, ER845, and ER300B and proved their ability to develop and produce completely new tube types with the ER887, a driver tube for the 845. The ER888 is the same tube with a molybdenum plate.