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DIY Audio Tube Amp PSVANE HIFI 300B Power Vacuum Tube Original Factory Test Matched Brand New

Categories Stereo Vacuum Tubes
Brand Name: PSVANE
Model Number: HIFI 300B
Certification: Rhos
Place of Origin: China
MOQ: Negotiable
Price: Negotiable
Payment Terms: Paypal, T/T, Western Union
Supply Ability: 1000pcs/month
Packaging Details: Standard box
Type: Audio Tube
Model: HIFI 300B
Brand: PSVANE
Application: tube amplifier
Socket: 4 pins
Material: Glass
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    DIY Audio Tube Amp PSVANE HIFI 300B Power Vacuum Tube Original Factory Test Matched Brand New

    Matched Pair Psvane Hifi series 300B Vacuum Tubes DIY audio tube amplifier tube Stereo Vacuum Tubes


    300B

    Hi-Fi Series: classic style, exquisite craft, comprehensive and balanced sound performance, largest sales volume over the world, best choice for you .



    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.


    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



    Cheap DIY Audio Tube Amp  PSVANE HIFI 300B Power Vacuum Tube Original Factory Test Matched Brand New for sale
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