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274B Vacuum Tube Replaces 5U4G 5Z3P 5R4 5AR4 GZ34 5Z4P HiFi Audio Tube Amplifier DIY Matching(4pcs Matched Quad)
274B Vacuum Tube Replaces 5U4G 5Z3P 5R4 5AR4 GZ34 5Z4P HiFi Audio Tube Amplifier DIY Matching(4pcs Matched Quad)
Preamps
Quantity
-
Detail
Preamps
Filament Heating
Voltage......5V
If...2.5A
Final Rating
Peak anode reverse voltage: 1550V
Peak anode current......750mA
Recommended working status
Anode power supply voltage 2×500V
Impedance per arm 75
Load impedance 2000
Filter capacitor 4F
Rectification current 230mA -
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