tesen 82Tube ECL 82 or Röhre ECL82 ID415, Triode-Beam Power Tube, Noval, 9 pin miniature (USA pico-9) B9A and Audio Frequency shown. Radio tubes are valves.Carlos D. Tesen is on . Join to connect with Carlos D. Tesen and others you may know. gives people the power to share and makes the world more open