3CX 5000A7

      The 3CX 5000A7 high-mu triode is designed for use as a cathode driven Class AB power amplifier. The tube does not require a socket as it is designed to bolt directly to the chassis by means of the grid flange. Cathode and heater connections are made by bolting directly to the amplifier circuitry. These features reduce equipment cost and complexity.
      Here you can get some information about the characteristics of 3CX 5000A7.The plate dissipation (Max.) is 5,000 Watts.The grid dissipation (Max.) is 35 Watts.The frequency for Max. rating (CW) is 110 MHz.The amplification factor is 18.It uses oxide coated filament/cathode. Voltage is 10.0 Volts.Current is 17.5 Amps.Then is about the capacitance of grounded grid.Input is 56.5 pf.Output is 34.0 pf.Feedthrough is 0.2 pf.The cooling system uses forced air.Base selects direct chassis mounting.The air chimney SK-306.The inner length is 8.25 cm and the whole is 20.96 cm.The inner diameter 4.94 mm and the outer diameter is 12.55 mm.The Weight is 9.5 lb(4.3 kg).