Sylvania 212-D Oct 3 Written by Iain Really BIG triode. As I understand it Western Electric and Sylvania made this beastie. I have not been able to locate the datasheet but it makes a 211 look small. Sylvania Iain Previous Previous A Pratical Cathode Follower Audio Amplifier 1949 Next Next Retro Hi-Fi Girl Friday
Sylvania 212-D Oct 3 Written by Iain Really BIG triode. As I understand it Western Electric and Sylvania made this beastie. I have not been able to locate the datasheet but it makes a 211 look small. Sylvania Iain
