Home / Vacuum Tube Rectifier WE300B Electronic Tube Reproduction Vacuum Tube Factory Precise Matching for Amplifier(2 Pcs)
  • Vacuum Tube Rectifier WE300B Electronic Tube Reproduction Vacuum Tube Factory Precise Matching for Amplifier(2 Pcs)
  • Vacuum Tube Rectifier WE300B Electronic Tube Reproduction Vacuum Tube Factory Precise Matching for Amplifier(2 Pcs)
  • Vacuum Tube Rectifier WE300B Electronic Tube Reproduction Vacuum Tube Factory Precise Matching for Amplifier(2 Pcs)
  • Vacuum Tube Rectifier WE300B Electronic Tube Reproduction Vacuum Tube Factory Precise Matching for Amplifier(2 Pcs)
  • Vacuum Tube Rectifier WE300B Electronic Tube Reproduction Vacuum Tube Factory Precise Matching for Amplifier(2 Pcs)
  • Vacuum Tube Rectifier WE300B Electronic Tube Reproduction Vacuum Tube Factory Precise Matching for Amplifier(2 Pcs)

Vacuum Tube Rectifier WE300B Electronic Tube Reproduction Vacuum Tube Factory Precise Matching for Amplifier(2 Pcs)

Preamps
The has good linearity low noise and good reliability
The tube is designed for service as power rectifiers in AC operated receivers which require high currents.
The service life longer and the failure rate greatly reduced.
The special with signal and has low noises output.
Dur
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  • Detail

    Preamps
    WE300B
    Heater
    Uf(DC)5V
    If(DC) 1.2A
    Maximum Rating
    Ua480V
    Pa40W
    Ik.....
    with cathode bias100 mA
    with fixed bias70 mADirect Interelectrode Capacitances
    input9PF
    output4.3PF
    grid to plate15PFStatic parameter
    Ua300V
    -Ug60V
    Ia60mA
    Gm5.5mA/V
    ri0.7 K
    u3.85
    Pout6.6W
    typical workong parameter
    aodio amplifier
    class A1
    Ua -Ug Ia RL Pout 2ndV V mA 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 26450 102 50 5000 10.7
    ==========
    Hign-concerned Chemical : None
    Model Number : WE300B
    Maximum Power Per Channel : NO POWER
    Origin : Mainland China

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