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274B Tube Replacement 274B 5Z3P 5U4G WE274B HiFi Amplifier kit DIY(4pcs Matched Quad)
274B Tube Replacement 274B 5Z3P 5U4G WE274B HiFi Amplifier kit DIY(4pcs Matched Quad)
Preamps
Quantity
-
Detail
Preamps
Glass-enclosed eight-pin direct-heated full-wave rectifier, 274B is very similar to 5U4G and 5Z3P and can be replaced with each other.
Heater
Voltage....................5V
If ............... 2.5A
Maximum Ratings
Anode reverse peak voltage...............1550V
Anode peak current.........750mA
Recommended working status
Anode power supply voltage 2×500V
Impedance per arm 75
Load impedance 2000
Filter capacitor 4F
Rectification current 230mA
Model: 274B
Maximum power per channel: No power supply
Origin: Mainland China
Certification: CE
Product Type: Vacuum tube, electron tube
Replacement:274B 5Z3P 5U4G WE274B
Application: tube amplifier, HIFI amplifier, DIY audio amplifier accessories -
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