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Electron Tube Diy Audio Tube New Tested Psvane HiFi 300B-N 300B Audio Vacuum Tube

    Buy cheap Electron Tube Diy Audio Tube New Tested Psvane HiFi 300B-N 300B Audio Vacuum Tube from wholesalers
     
    Buy cheap Electron Tube Diy Audio Tube New Tested Psvane HiFi 300B-N 300B Audio Vacuum Tube from wholesalers
    • Buy cheap Electron Tube Diy Audio Tube New Tested Psvane HiFi 300B-N 300B Audio Vacuum Tube from wholesalers

    Electron Tube Diy Audio Tube New Tested Psvane HiFi 300B-N 300B Audio Vacuum Tube

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    Brand Name : PSVANE
    Model Number : HIFI 300BN
    Certification : Rhos
    Price : Negotiable
    Payment Terms : Paypal, T/T, Western Union
    Supply Ability : 1000pcs/month
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    Electron Tube Diy Audio Tube New Tested Psvane HiFi 300B-N 300B Audio Vacuum Tube

    Electron Tube Diy Audio Tube New Tested Psvane HiFi 300B-N 300B Audio Vacuum Tube


    300B is directly-heated type cathode triode, used as class A1. In audio amplifier it suits for the condition that the output power is 10W.


    300B-N is an item of HIFI Series, with the tube department of this type all adopt screen structure, lifting hook filament, gold plated pins, and the essential part of tubes transplant technologies of producing PSVANE Reproducing Western Economics, it is the mid-priced 300B tube item with great cost performance.



    300B-N is directly-heated type cathode triode, used as class A1. In audio amplifier it suits for the condition that the output power is 10W.

    Heater
    Uf(DC)………………5V
    If(DC) …………… 1.2A

    Maximum Rating

    Ua……………480V
    Pa………40W

    Ik
    with cathode bias………………100 mA
    with fixed bias……………70 mA

    Direct Interelectrode Capacitances
    input……………9PF
    output……………4.3PF
    grid to plate……………15PF

    Static parameter


    Ua……………………300V
    -Ug………………… 60V
    Ia……………………60mA
    Gm……………………5.5mA/V
    ri……………………0.7 KΩ
    u ……………………3.85
    Pout…………………6.6W

    typical workong parameter
    aodio amplifier
    class A1

    Ua -Ug Ia RL Pout 2nd

    V V mA Ω W 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
    450 102 50 5000 10.7





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