Home / Vacuum Tube Rectifier 805A Vacuum Tube Replaces 805 FU-5 Electronic Tube for Audio amplifiers to Provide Precise Parameter(1 pcs)
  • Vacuum Tube Rectifier 805A Vacuum Tube Replaces 805 FU-5 Electronic Tube for Audio amplifiers to Provide Precise Parameter(1 pcs)
  • Vacuum Tube Rectifier 805A Vacuum Tube Replaces 805 FU-5 Electronic Tube for Audio amplifiers to Provide Precise Parameter(1 pcs)
  • Vacuum Tube Rectifier 805A Vacuum Tube Replaces 805 FU-5 Electronic Tube for Audio amplifiers to Provide Precise Parameter(1 pcs)
  • Vacuum Tube Rectifier 805A Vacuum Tube Replaces 805 FU-5 Electronic Tube for Audio amplifiers to Provide Precise Parameter(1 pcs)
  • Vacuum Tube Rectifier 805A Vacuum Tube Replaces 805 FU-5 Electronic Tube for Audio amplifiers to Provide Precise Parameter(1 pcs)

Vacuum Tube Rectifier 805A Vacuum Tube Replaces 805 FU-5 Electronic Tube for Audio amplifiers to Provide Precise Parameter(1 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
    Heater
    Uf--------------------------------------10 V
    If---------------------------------------3.25 A
    Direct Interelectrode Capacitances
    input----------------------------------8.5 PF
    output----------------------------------10.5 PF
    grid to plate---------------------------------6.5 PF
    Maximum Rating
    Ua---------------------------------1500 V
    Pa-----------------------------125 W
    Recommended Operating Conditions (reference value)
    class B(A-F) for two tubes
    typical working condition limited parameter
    Ua------------------ 1250 1500 1250 V
    Ia(mAx.sig per tube)------------------- 210 mA
    Pa(in) (mAx.sig per tube)--------------- 315 W
    Pa(per t ---------------------------- 125 W
    Ug-----------------------------------16 V
    Ug(pk)----------------235 280 V
    Ia (0)-----------------148 84 mA
    Ia(mAx.sig)----------500 600 mA
    Pd(mAx.sig)------------6 7 W
    RL(a-a)---------------6.7 8.2 K
    Pout(mAx.sig)-----------300 370 W
    class B(R-F):
    Carrier conditions the biggest modulation coefficient is 1 per tube
    typical working condition limited parameter
    Ua------------------ 1250 1500 1500 V
    Ug-----------------------------------10 V
    Ia -------------------135 115 150 mA
    Pa (in) ------------------------------185 W
    Pa ---------------------------------125 W
    Ug(pk)----------------70 70 V
    Ig -------------------15 15 mA
    Pd-------------------11 7.5 W
    Pout------------------55 57.5 W
    Purchase 2 4 and 8 pieces for factory precise matching with 100 % identical parameters.
    ==========
    Hign-concerned Chemical : None
    Channels : 1
    Model Number : 805A
    Maximum Power Per Channel : NO POWER
    Origin : Mainland China

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