Home / 300B-L 300BL Tube Upgrade 300B 300BT 300BN 4300B 7300B HiFi Audio Tube Amplifier DIY(2pcs Matched Pair)
  • 300B-L 300BL Tube Upgrade 300B 300BT 300BN 4300B 7300B HiFi Audio Tube Amplifier DIY(2pcs Matched Pair)
  • 300B-L 300BL Tube Upgrade 300B 300BT 300BN 4300B 7300B HiFi Audio Tube Amplifier DIY(2pcs Matched Pair)
  • 300B-L 300BL Tube Upgrade 300B 300BT 300BN 4300B 7300B HiFi Audio Tube Amplifier DIY(2pcs Matched Pair)
  • 300B-L 300BL Tube Upgrade 300B 300BT 300BN 4300B 7300B HiFi Audio Tube Amplifier DIY(2pcs Matched Pair)

300B-L 300BL Tube Upgrade 300B 300BT 300BN 4300B 7300B HiFi Audio Tube Amplifier DIY(2pcs Matched Pair)

Preamps
Quantity
ADD TO CART
BUY IT NOW
  • Detail

    Preamps
    300BL
    This product is a direct-heated cathode medium-power triode, suitable for class A1 amplification. In audio amplifiers, it is suitable for 10W output power.

    Anode voltage: 480V
    Anode dissipated power... ...
    Cathode current
    Self bias ................................. 100 mA
    Fixed bias voltage 70 mA
    Interelectrode capacitance
    Input capacitance ................................. 9pF
    Output capacitance................................4.3PF
    Inter-circuit capacitance.................................15PF
    Static parameters
    Ua300V
    -Ug 60V
    Current 60 mA
    Voltage range 5.5 mA/V
    Ri0.7 K
    Three point eighty five
    Water output 6.6W
    Recommended parameters
    Ugg
    Ua Uf (AC) Uf (DC) I a
    Voltage --~ Voltage----Voltage---- mA
    200--33--29.5--77
    200--45--41.5--20
    250--46--42.6 --74
    250--57--53.6 --22
    300--60--56.5--68
    300--70--66.5--23
    400--86--82.5 --68
    400--98--94.5 --19
    Limit Parameters
    450--100--96.5--60

  • Customer Reviews
    No comments