Home / WE2A3 Tube 1:1 Copy WE 2A3 Upgrade 2A3C 2A3B HiFi Audio Tube Amplifier kit DIY Matching(1 pcs)
  • WE2A3 Tube 1:1 Copy WE 2A3 Upgrade 2A3C 2A3B HiFi Audio Tube Amplifier kit DIY Matching(1 pcs)
  • WE2A3 Tube 1:1 Copy WE 2A3 Upgrade 2A3C 2A3B HiFi Audio Tube Amplifier kit DIY Matching(1 pcs)
  • WE2A3 Tube 1:1 Copy WE 2A3 Upgrade 2A3C 2A3B HiFi Audio Tube Amplifier kit DIY Matching(1 pcs)
  • WE2A3 Tube 1:1 Copy WE 2A3 Upgrade 2A3C 2A3B HiFi Audio Tube Amplifier kit DIY Matching(1 pcs)

WE2A3 Tube 1:1 Copy WE 2A3 Upgrade 2A3C 2A3B HiFi Audio Tube Amplifier kit DIY Matching(1 pcs)

Preamps
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  • Detail

    Preamps
    WE2A3 direct-heated cathode medium-power triode is used for A1 Ab1 amplification.
    Filament Heating
    Uf----------------2.5V
    Medium frequency-------------2.5A
    Static parameters
    Voltage----300V
    -ug--45V
    Current value---- -----60 mA
    Gm----------5.25 mA/V
    Li---0.8k
    Uh----------4.2
    Output-------------3.5W
    Extreme Rating
    Anode voltage --- 300V
    Anode dissipation power: 15W
    Grid resistance
    Self-bias period ------ 0.5m
    Fixed bias voltage --- 0.05m
    Interelectrode capacitance
    Input capacitance: -7.5PF
    Output capacitor --- 16.5PF
    Inter-circuit capacitance --- 5.5PF
    Recommended working status (reference value)
    Single tube class A1 amplifier (fixed bias)
    Voltage------------------250V
    -Voltage-------------45V
    Remaining--------------2.5k
    Current----------------60 mA
    Gm--------------5.25Ma/V
    ri-----------------0.8k
    u-----------------4.2
    Output--------------3.5W
    Total---------------5%

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