Balanced Audio Technology 6C33C-B Vacuum Tube. Peak-Performing BAT 6C33C-B Vacuum Tube Delivers High Current at a Relatively Low-Plate Voltage. The Balanced Audio Technology dual-filament triode 6C33C-B vacuum tube is unique in its ability to deliver high current at a relatively low-plate voltage.

The data of this tube was much better than anything made before in the west and SanEi of Japan imported some 6C33C tubes for audio application in 1997, renaming them EC33C for the Japanese consumer. Mr Dakesue in Japan was the first person to design a 6C33C-B OTL power amplifier circuit in 1997. Sep 01, 2013 · 2 thoughts on “ 6S33S 6C33C Russian Triode ” Steve Marsh September 1, 2013 at 5:43 pm. Hello, I am a reviewer for the online audio magazine, 6moons.com. I am helping an elderly gentleman get his system going again. His amp requires four of the 6C33C-B tubes. A dealer friend of mine referred me to you.