Elektronenröhre 8F76R_FU113F_1417

Electron Tube 1417_FU113F_8F76R VHF TETRODE Peak-of-sync output power in TV vision carrier amplification: 13.4 kW General characteristics Cathode thoriated tungsten Heating direct Filament voltage 7.5 V Filament current 120A Interelectrode capacitances, approx,: Cathode-control grid 56pF Control gird-screen grid 91 pF Control gird-anode 0.6 pF Cathode-anode 0.075pF Transconductandce (la=2.5A) 60mA/V Internal amplification factor, average 8.75 Operating positionvertical, anode up Weight, approx.9.4kg Anode cooling forced air Cooling at the sealing between electrode terminal and ceramic forced air Temperature on the surface of the tube, max 250 Maximum ratings Frequency 250 MHz Anode voltage 8 kV Anode current 5.5A Screen-grid voltage 1.5kV Anode dissipation 15kW Control-grid dissipation 180W Screen-grid dissipation 300W Typical operation Vision carrier amplification Peak-of-sync output power 13.4 kW Anode voltage 6.2 Kv Control-grid bias voltage -120 V Screen-grid voltage 880 V Anode current, with signal 3.5 A Control-grid current 46 mA Screen-grid current 27 mA