6K4P-EV

The 6K4P-EV (6К4П-ЕВ rus.) tube high-frequency miniature pentode with an extended anode-grid characteristic.
Designed to amplify intermediate and high frequency voltages in circuits with the AGC system (Automatic Gain Control). Works in any position.

Socket: B7G (Miniature 7-pin).

Equivalents: EF93, 6BA6, W727, 5749, 6F31, E93F, CV4009, 6K4 (Shuguang).

E – the letter characterizing the increased durability of the tube
V – tube with increased reliability and mechanical strength

• Stamp of technical control department of the manufacturer ” ОТК “

Technical specifications: 

• Filament voltage: 6.3 ± 0.6V
• Filament current: 300 ± 25mA
• Anode voltage nominal (constant): 250V
• Anode voltage limit (constant): 300V
• Anode current: 10 ± 3.3mA
• Cathode current limit: 20mA
• The reverse current of the grid of the first: not more than 0.5μA
• Grid voltage second nominal (constant): 100V
• Grid voltage second limit (constant): 125V
• Grid current second: 3.7 ± 1.3mA
• Power dissipated by the anode limit: 3W
• Power dissipated by the second grid limit: 0.6W
• Voltage between the cathode and the heater limit (constant): 90V
• Slope: 4.4 ± 0.9mA/V
• Internal resistance: not less than 0.45MOhm

Operating time not less than 5000 hours.