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Finished HiFi Preamplifier Board DIY Audio Amplifier Board Replacement for Marantz HDAM Classic Preamplifier
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Line Magnetic Audio LM-508IA 48W+48W Tube Amplifier Integrated Amplifier Tube Amp with Two VU Meters
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2x80W HiFi Digital Power Amplifier Board V1.6 Class D Amplifier Board for MERUS MA12070 with Toggle Switch
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Shuguang 274B Tube Electron Tube Improved Vacuum Tube Replacement For 5Z3PJ 5U4G Fit Tube Amplifiers
Description:
274B is a high-performance rectifier tube. It adopts a special cathodic electrophoresis process; the surface is smooth and firm and has sufficient emission current. An ultra-high vacuum exhaust machine is used to exhaust it for a long time. The vacuum degree in the tube is more than 100 times higher than that of 5U4G. At the same time, it adopts high-pressure refining to improve the stability of the whole tube. The anti-peak voltage of the tube can reach more than 850V, and the output DC current is 150MA, and it will not be sparked under high voltage. This is an ideal rectifier tube, which can be used as the rectifier of tube amplifier.
Attention:
It is an improved tube, which is mainly improved in terms of technology, bulb size, and elimination of sparking.
Package Included:
- 1 x Electron Tube
