Home / 300B A300B Tube Upgrade 300BT 4300B 7300B WE300B HiFi Audio Tube Amplifier Kit DIY(2pcs)
  • 300B A300B Tube Upgrade 300BT 4300B 7300B WE300B HiFi Audio Tube Amplifier Kit DIY(2pcs)
  • 300B A300B Tube Upgrade 300BT 4300B 7300B WE300B HiFi Audio Tube Amplifier Kit DIY(2pcs)
  • 300B A300B Tube Upgrade 300BT 4300B 7300B WE300B HiFi Audio Tube Amplifier Kit DIY(2pcs)
  • 300B A300B Tube Upgrade 300BT 4300B 7300B WE300B HiFi Audio Tube Amplifier Kit DIY(2pcs)

300B A300B Tube Upgrade 300BT 4300B 7300B WE300B HiFi Audio Tube Amplifier Kit DIY(2pcs)

Preamps
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  • Detail

    Preamps
    Heater
    Voltage (DC) 5V
    Current value (DC) 1.2A
    Maximum Ratings
    UA480V
    Pa40W
    I know
    With cathode bias 100mA
    Fixed bias 70mA
    Direct interelectrode capacitance
    Enter 9PF
    Output 4.3 PF
    Grid to board 15PF
    Static parameters
    Voltage 300V
    -Ug60V
    Current 60 mA
    Voltage range 5.5 mA/V
    0.7K
    3.85
    Outgoing 6.6 W

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