6K4P 6К4П 8 pcs (6BA6, EF93) USSR HF PENTODE 

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6К4П:

Filament voltage 6.3 V

The anode voltage of 250V

Second grid voltage 100V

Filament current 300±30mA 300±25mA

Anode current 10±3mA

Second grid current <5.5 mA

The steepness of the characteristics 4.4±0.9 mA/V

The steepness of the characteristics at UN=5,7 V

    >2.8 mA/V >3.0 mA/V

The steepness at the beginning of the characteristic (Uc1=-20V) 0.04 mA/V

First grid reverse current <1.0 µa <0.3 µa

The cut-off voltage of the electronic current of the first mesh < -1.5 V

Resistance in the cathode circuit for automatic displacement of 68 ohms

Internal resistance of about 850Ком about 450Ком

Input impedance (at f=60MHz) type. 19kom     >2kom

(type. 5kω)

Voltage fibrosum (Ra=10kOhm) <400mV <180мВ

Input capacitance 6pf 6.4±0.8 pF

The output capacitance of 6.3 pF 6,7±1,1 pF

Internal capacitance <0,0045 pF <pF 0,0035

Capacitance cathode-heater is a 5.5 pF to 5.5 pF

Operating time 1000h 5000h

We can do combine shipping

In good condition! 

TESTED

Made in USSR.

LOT  8pcs. 

Thanks And Good luck!