Specifications and electrical parameters of the lamp 6J4:
Rated electrical data:
Tension of heat, V 6,3
Anode voltage, V 300
Voltage on the second grid, V 150
Voltage on the third grid, V 0
Resistance in the cathode circuit for automatic bias, Ohm 160
Filament current, mA 450 ± 25
Current in the anode circuit, mA 10.25 ± 2.25
Current in the circuit of the second grid, mA 2.2 ± 1.0
The steepness of the characteristics, mA / V 9.0 ± 2.0
Internal resistance, mOhm 3
Input impedance at frequencies 45-60 MHz, ohms about 2600
Maximum permissible electrical quantities:
• The highest filament voltage, V 7
• The lowest voltage on the heat, V 5.7
• The greatest tension on the anode, V 330
• The highest voltage on the second grid, V 165
• Maximum power dissipated at the anode, W 3.3
• Maximum power dissipated on the second grid, W 0.45
• The greatest constant voltage between the cathode and the heater, V 100
• Maximum leakage current between the cathode and the heater, µA 20