E-805A E805A tube HIFI audio tube replaces 805 805A 805M tube amplifier kit DIY matching four-way(2pcs Matched Pair)

PreampsE805A features:The screen (metal screen) is made of carburized Permalloy, which has high purity, strong electron emission ability and long service life.Tone: The sound field is wide, gentle and pleasant, smooth and lingering, with diverse styles and good balance. The female voice is very beautifulE-805A direct-heated needle-shaped tungsten cathode triode can be used for class B A-FR-F power amplification, class C power amplification and high-frequency oscillation.Filament HeatingUf---------------10VIF --------------3.25AInterelectrode capacitanceInput capacitance: 8.5PFOutput capacitor ------------------10.5PFInter-circuit capacitance------------- 6.5PFExtreme RatingAnode voltage: 1500VAnode dissipation power ------ 125WStatic test parametersFilament voltage -----------10VAnode voltage -------------- 1500vGrid voltage 10Screen current value -------------48-72mA

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