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Stereo Vacuum Tubes Tested HiFi 2A3B 2A3 Psvane Vacuum Tube For Tube Amp

Categories Stereo Vacuum Tubes
Brand Name: PSVANE
Model Number: HIFI 2A3B
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 2A3B
Brand: PSVANE
Application: tube amplifier
Socket: 4 pins
Material: Glass
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    Stereo Vacuum Tubes Tested HiFi 2A3B 2A3 Psvane Vacuum Tube For Tube Amp

    Stereo Vacuum Tubes Tested HiFi 2A3B 2A3 Psvane Vacuum Tube For Tube Amp





    2A3 is a direct-heated cathode power double triode, it is used in classA1, AB1 amplifier.


    Direct Interelectrode Capacitances input………………………… 7.5 PF
    output…………………………16.5 PF
    grid to plate…………………………5.5 PF

    Static parameter
    Ua………………………… 300 V
    -Ug………………………… 45 V
    Ia………………………… 60 mA
    Gm………………………… 5.25 mA/V
    ri………………………… 0.8 kΩ
    μ………………………… 4.2
    Pout…………………………3.5 W

    Heater
    Uf ………………………… 2.5 V
    If…………………………2.5 A

    Maximum Rating
    Ua…………………………300 V
    Pa…………………………15 W
    Rg
    with cathode bias…………………………0.5 MΩ
    with fixed bias…………………………0.05 M


    Recommended Operating Conditions(reference value)
    class A1.single tube.fixed bias.
    Ua………………… 250 V
    -Ug……………………45 V
    RL……………………2.5 kΩ
    Ia(0)…………………60 mA
    Gm……………………5.25 Ma/V
    ri……………………0.8 Kω
    μ……………………4.2
    Pout……………………3.5 W
    Dtot……………………5 %

    Push-full.class AB1.



    fixed bias cathode bias
    Ua……………300 300 V
    -Ug……………62 Rk=780Ω V
    RL……………3 5 kΩ
    üg(pk)………87 110 V
    Ia(0)…………80 80 mA
    Ia(max.sig)…140 100 mA
    Pout……………15 10 W
    Dtot……………2.5 5 %




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