• 5U4G/274B is glass- shell, 8-pin socket, directly heated full-wave high vacuum rectifier tube.The special blue glass tube is sensitive with signal and has low noises output.
• The tube is designed for service as power rectifiers in AC operated receivers which require high currents.
• For this 5U4G tube,it can be directly upgraded or used by 274B/5Z3P.
• This tube is used sapphire crystal as a bulb, which not only brings visual art enjoyment to people, but also has the function of shielding electronic clutter and uniform electron escape.
• This is vacuum tubes made by Linlai Tube which is a factory in China.With rich producing and design experiences,Linlai Tube supply the up to great quality and service for their tubes.