Home / WE300B Plus Tube Upgrade 300B 4300B 7300B WE300B 300BT HiFi Audio Tube Amplifier DIY(1 pcs)
  • WE300B Plus Tube Upgrade 300B 4300B 7300B WE300B 300BT HiFi Audio Tube Amplifier DIY(1 pcs)
  • WE300B Plus Tube Upgrade 300B 4300B 7300B WE300B 300BT HiFi Audio Tube Amplifier DIY(1 pcs)
  • WE300B Plus Tube Upgrade 300B 4300B 7300B WE300B 300BT HiFi Audio Tube Amplifier DIY(1 pcs)
  • WE300B Plus Tube Upgrade 300B 4300B 7300B WE300B 300BT HiFi Audio Tube Amplifier DIY(1 pcs)

WE300B Plus Tube Upgrade 300B 4300B 7300B WE300B 300BT HiFi Audio Tube Amplifier DIY(1 pcs)

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 100 mA
    Fixed bias 70 mA
    Direct interelectrode capacitance
    Enter 9PF
    Output 4.3PF
    Grid to board 15PF
    Static parameters
    Ua300V
    60 volts
    Current 60 mA
    Voltage range 5.5 mA/V
    ri0.7 thousand
    3.85
    Water output 6.6W
    Typical operating parameters
    Audio Amplifier
    Category A1
    Ua -Ug Ia RL Pout Second
    Voltage Current mA Watts dB
    200 42 30 2000 3 20
    200 39 40 2500 2.6 26
    250 55 30 2000 4.9 18
    250 52 40 3000 4.0 26
    250 50 50 2500 4.4 26
    250 48 60 2000 4.7 26
    250 48 60 2700 4.1 30
    250 45 80 1500 5.0 26
    300 65 40 2500 6.7 20
    300 63 50 2000 7.2 21
    300 63 50 3000 6.1 26
    300 61 60 2400 6.6 26
    300 58 80 1700 7.5 26
    350 76 50 3600 7.8 26
    350 74 60 2000 10.2 21
    350 74 60 3000 8.3 26
    350 74 60 4000 7.0 30
    350 71 80 2200 9.6 26
    400 91 40 5000 8.4 26
    400 89 50 1000 11.5 21
    400 89 50 4000 9.4 25
    400 87 60 3500 10.5 26
    400 84 80 2500 12.5 25
    450 104 40 6000 9.5 26
    45010250500010.7

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