The 805A Tube Replaces The 805 FU-5 Tube for Audio amplifiers, Providing an Exact Parameter Match(1 pcs)

PreamplifiersItem No.: Hifi 805A805 is a directly heated thoriated tungsten cathode triode, which can be used for Class B, AF, power amplification, Class C power amplification and high frequency oscillation.HeaterUf----------------------------------------10VIf-------------------------3.25 ADirect interelectrode capacitanceInput----------------------------------8.5 PFOutput----------------------------------10.5 PFGrid to Plate---------------------------------6.5 PFMaximum RatingsUa--------------------------------1500VPa-----------------------------125 WRecommended operating conditions (reference values)Class B (AF) double barrelTypical operating limit parametersUa------------------ 1250 1500 1250 VIa (mAx.sig per tube) -------------------- 210 mAPa (in) (mAx.sig per tube)--------------- 315 WPa (per ton---------------------------- 125 WUh----------------------------------16VUg(pk)----------------235 280 VIa (0)----------------148 84 mAIa(mAx.sig)----------500 600 mAPd(mAx.sig)------------6 7 WRL(aa)--------------6.7 8.2 KOutput power (mAx.sig) --------------300 370 WClass B ():The maximum modulation factor under current carrying condition is 1 per tubeTypical operating limit parametersUa------------------ 1250 1500 1500 VUG----------------------------------10VIa -------------------135 115 150 mAPascal (inch) ---------------------------- 185 WattsPa---------------------------------125 WUg (peak)----------------70 70 VImmunoglobulin ------------------- 15 15 mAPd-------------------11 7.5WPout------------------55 57.5 WBuy 2, 4 or 8 pieces, the factory will accurately match them and the parameters are 100% consistent

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