Home / 2A3 A2A3 Vacuum Tube Upgrade 2A3C 2A3B 2A3T WR2A3 WE2A3 HiFi Audio Tube Amplifier DIY Matching Four-Way(4pcs Matched Quad)
  • 2A3 A2A3 Vacuum Tube Upgrade 2A3C 2A3B 2A3T WR2A3 WE2A3 HiFi Audio Tube Amplifier DIY Matching Four-Way(4pcs Matched Quad)
  • 2A3 A2A3 Vacuum Tube Upgrade 2A3C 2A3B 2A3T WR2A3 WE2A3 HiFi Audio Tube Amplifier DIY Matching Four-Way(4pcs Matched Quad)
  • 2A3 A2A3 Vacuum Tube Upgrade 2A3C 2A3B 2A3T WR2A3 WE2A3 HiFi Audio Tube Amplifier DIY Matching Four-Way(4pcs Matched Quad)
  • 2A3 A2A3 Vacuum Tube Upgrade 2A3C 2A3B 2A3T WR2A3 WE2A3 HiFi Audio Tube Amplifier DIY Matching Four-Way(4pcs Matched Quad)

2A3 A2A3 Vacuum Tube Upgrade 2A3C 2A3B 2A3T WR2A3 WE2A3 HiFi Audio Tube Amplifier DIY Matching Four-Way(4pcs Matched Quad)

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  • Detail

    Preamps
    Maximum Ratings
    UA300V
    Pascal 15W
    A
    The cathode bias voltage is 0.5 M
    Fixed bias 0.05 M
    Direct interelectrode capacitance
    Input 7.5 PF
    Output 16.5 PF
    Grid spacing 5.5 PF
    Static parameters
    UA300V
    -Ug45V
    Current 60 mA
    On-resistance 5.25 mA/V
    0.8 thousand
    Four point two
    Output 3.5 W
    Recommended operating conditions
    (reference value)
    Class A1, single tube (fixed bias)
    250V
    -Ug45V
    Reflow 2.5k
    Current (0) 60 mA
    General 5.25 mA/V
    0.8 K
    Four point two
    Output 3.5 W
    Total 5 %
    Category AB1
    Push full (fixed deviation)
    Voltage 300V
    -Ug 62 Rk=780V
    RL 3 5 thousand
    üg (peak) 87 110 V
    Current (0) 80 80 mA
    Ia (maximum signal) 140 100 mA
    Output power 15 10 watts
    Total 2.5 5 %

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