Home / 572B Tube Replacement 572B HiFi Audio Tube Amplifier kit DIY Matching Four-Way(4pcs Matched Quad)
  • 572B Tube Replacement 572B HiFi Audio Tube Amplifier kit DIY Matching Four-Way(4pcs Matched Quad)
  • 572B Tube Replacement 572B HiFi Audio Tube Amplifier kit DIY Matching Four-Way(4pcs Matched Quad)
  • 572B Tube Replacement 572B HiFi Audio Tube Amplifier kit DIY Matching Four-Way(4pcs Matched Quad)
  • 572B Tube Replacement 572B HiFi Audio Tube Amplifier kit DIY Matching Four-Way(4pcs Matched Quad)

572B Tube Replacement 572B HiFi Audio Tube Amplifier kit DIY Matching Four-Way(4pcs Matched Quad)

Preamps
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  • Detail

    Preamps
    Filament Heating
    Voltage: 6.3V
    If: 4A
    Extreme Rating
    Anode voltage: 1250V
    Anode current at maximum signal: 210 mA
    Anode dissipation power: 125W
    Gate current: 50mA
    Interelectrode capacitance
    Input capacitance: 6PF
    Output capacitance: 0.9PF
    Inter-circuit capacitance: 5.9PF
    Static parameters
    Voltage: 2000V
    - Voltage: 2V
    Current value: 32mA
    µ(at Ia=20mA):190
    Recommended working status (reference value)
    Single tube A1 type amplifier (single-ended)
    UA:750
    Ugg: 30
    IA(0): 130
    Ia (maximum signal): 210
    U(.pk):60
    Ia (maximum signal): 210
    Remaining: 5
    Pout (when Dtot=5%): 40
    Push-pull AB2 amplifier
    Email: 1000
    Ugg: 20
    IA(0):75
    Ia (maximum signal): 300
    U (.pk): 195
    Remaining: 8
    Pout (when Dtot=5%): 150

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