Home / 845-TII Tube Amplifier Kit DIY Tube Amplifier(4pcs Matched Quad)
  • 845-TII Tube Amplifier Kit DIY Tube Amplifier(4pcs Matched Quad)
  • 845-TII Tube Amplifier Kit DIY Tube Amplifier(4pcs Matched Quad)
  • 845-TII Tube Amplifier Kit DIY Tube Amplifier(4pcs Matched Quad)
  • 845-TII Tube Amplifier Kit DIY Tube Amplifier(4pcs Matched Quad)

845-TII Tube Amplifier Kit DIY Tube Amplifier(4pcs Matched Quad)

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  • Detail

    Preamps
    845-TII
    Filament Heating
    Voltage frequency---------------------------------------10V
    If ---------------------------------------- 3.25 A
    Final Rating
    Anode voltage----------------------------------------------------------------
    Anode dissipation power------------------------------------------------------------------------------
    Output power at maximum signal: 150 W
    Maximum anode current------------------------------120 mA;
    Interelectrode capacitance
    Input capacitance--------------------------------6 PF
    Output Capacitor ---------------------------------4.5 PF
    Cross Capacitance-----------------------------------------------------------------
    Static parameters
    Ua----------------------------------------1250V
    -Ug------------------------------------------------200V
    Ia------------------------------------------------80 mA
    Gm--------------------------------------3 mA/V
    Li----------------------------------------------------1.7 K
    You----------------------------------------------------------------5
    RL---------------------------------------------3.4 K
    Ug(pk)--------------------------------69 V
    Pout-------------------------------------15 W
    Recommended working status (reference value)
    Single tube A1 amplification:
    Voltage source ———— 1000 1000 1250 volts
    -Ug--- 145 155 209 V
    RL-----6 9 16 K
    Current------90 65 52 mA
    Transconductance -----3.1 - - mA/V
    Peak voltage --- 110 148 V
    Mileage------1.7 1.9 2.1 K
    Pout----24 21 24 W
    Push-Pull AB1 Amplifier:
    Ua----------------- 800 1000 1000 1250 V
    -Ug---------------- 125 170 175 225 volts
    RL------------------ 4.5 4.6 4.6 6.6 K
    Ia--------------------------------80 70 40 40 mA
    Ug(pk)----------------177 240 - - V
    Ia(mAx.sig)---------170 230 230 240 mA
    Pout----------------40 75 75 115 W

    Model: 845-TII
    Maximum power per channel: No power supply
    Origin: Mainland China
    Certification: CE
    Product Type: Vacuum tube, electron tube
    Replaces: 845 A845 E-845 845-DG 845-T 845-TA
    Application: tube amplifier, HIFI amplifier, DIY audio amplifier accessories
    Note: pairing

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