Tube Rectifier 5z3p J Military Grade For Hifi Tube Amplifier Model Wvt2016 Replace 5t4 5u4g U52 High Reliability - Home Theater Amplifiers - AliExpress
Equivalence table
Gowe Rectifier Vacuum Tube Equivalent to 5u4g 5Z3P Imitate with WE274B Electron Lamp : Amazon.de: DIY & Tools
Tube Rectifier 5z3p J Military Grade For Hifi Tube Amplifier Model Wvt2016 Replace 5t4 5u4g U52 High Reliability - Home Theater Amplifiers - AliExpress