6Ж4
 pentod for voltage amplification high-and intermediate frequencies. 
In a metal container with ostalnym base.
The oxide cathode of indirect filament.
Works in any position.
Service life not less than 500 hours. 
Weight 43 g.

Main technical characteristics 6Ж4:
• Rated electrical data
• Filament voltage, ...... 6,3
• The voltage on the anode, ...... 300
• The voltage on the second grid In ...... 150
• The voltage on the third grid ...... 0
• Resistance in the cathode circuit to automatically offset, Ohm ...... 160
• Filament current, mA ...... 450 ±25
• The current in the anode circuit, mA ...... 10,25 ±2,25
• The current in the circuit of the second grid, mA ...... 2,2 ±1,0
• Slope, mA/V ...... 9,0 ±2,0 
• Internal resistance MOhm ...... 3,0
• Input impedance at frequencies 45-60 MHz, Ohm ...... 2600

Maximum permissible electrical values
• The maximum stress intensity, In ...... 7
• The smallest filament voltage, ...... 5,7
• The highest voltage at the anode, ...... 330
• The highest voltage of the PA second grid, ...... 165
• The highest power dissipated at the anode, W ...... 3,3 
• The highest power dissipation in the second grid, W ...... 0,45 
• The highest DC voltage between the cathode and the heater, ...... 100
• The highest leakage current between the cathode and heater, ua ...... 20

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