Export type Changsha Sugon electron tube 805 FU-5 factory direct warranty One year vacuum Original pairing | Инструменты

805 (FU-5) Direct thermal helium-tungsten cathode triode 805 can be used for Class B, A-F, R-F power amplification, Class C R-F power amplification and high frequency oscillation. The 805 is similar to the GL-805 and is used interchangeably.   Filament heating Uf ..............................10 V If............................ 3.25 A   Interelectrode capacitance Input capacitance ........................8.5 PF Output Capacitance ........................10.5 PF Cross capacitance........................6.5 PF   Limit rating Anode voltage........................1500 V Anode Dissipation Power ........125 W Operating frequency and anode voltage When the operating frequency is above 30MC, the anode voltage and anode input power will be adjusted as follows:   Frequency (MC) Anode Voltage and Anode Input Power B pole electrode C grade telephone anode modulation telegram 30 100% 100% 45 90% 82% 80 71% 55%     Recommended working condition (reference value) Class B A-F power amplification (two tubes) limit Ua........................... 1250 1500 1500 V Ia(max.sig.per tube)...............210 mA Pa(in)(max.sig.per tube) z......315 W Pa (per tube) ...........................125 W Ug..........................................16 V Üg(pk).....................235 280 V Ia(0)........................148 84 mA Ia(max.sig)...............500 600 mA Pd..............................6 7 W RL(a-a)........................6.7 8.2 kΩ Pout(max.sig)............300 370 W               Class B R-F power amplification (Maximum modulation factor for each tube under carrier conditions is 1.0) Limit value Ua..................1250 1500 1500 V Ug..............-10 V Ia..................135 115 150 mA Pa(in)..........................................185 W Üg(pk)............70 70 V Ig......................15 15 mA Pd..................11 7.5 W Pout...............55 57.5 W   Class C R-F power amplification and oscillation (anode modulation) (Maximum modulation factor for each tube under carrier conditions is 1.0) Limit value Ua........1000 1250 1250 V Ug..................-155 -160 -500 V Ia..................160 160 175 mA Ig..................60 60 70 mA Pa(in)..........................................220 W Pa................................................85 W Üg(pk)............295 300 V Pd..................16 16 W Pout...............110 140 W   Class C R-F Power Amplification and Oscillation (Anodic Modulation) (If there is no modulation for each tube under keying conditions) Limit values Ua..................1000 1250 1500 1500 V Ug..................-95 -100 -105 -500 V Ia........200 200 200 210 mA Ig ....40 40 40 70 70 mA Pa(in)......................................................315 W Pa............................................................125 W Üg(pk)............225 230 235 V Pd..................8.5 8.5 8.5 8.5 W Pout...............130 170 215 W