6K4P-EV

Filament current, mA

300±25

Anode current, mA

30±3

2^nd grid current, mA

≤5.5

1^st grid reverse current (at U_g1=-2 V), µA

≤0.3

Cathode-to-filament leakage current, µA

≤20

Transconductance, mA/V

at U_f=6.3 V

at U_f=5.7 V

at U_g=-20 V

4.4±0.9

≥3

0.04

Internal resistance, M?

0.45

Input resistance (at f=60 MHz), kOHm

5

Microphonic voltage (at R_a=10 kOhm), mV

≤180

Interelectrode capacitance, pF

input

output

input-to-output

cathode-to-filament

6.4±0.8

6.7±1.1

≤0.0035

5.5

Lifetime, h

≥5000

Estimation test:

1^st grid reverse current, µA

transconductance, mA/V

≤1

≥2.8

Filament voltage, V

5.7-7

Anode voltage, V

300

Anode voltage in off-state, V

340

2^nd grid voltage, V

125

2^nd grid voltage in off-state, V

340

Cathode-to-filament voltage, V

90

Cathode current, mA

20

Anode power dissipation, W

3

2^nd grid power dissipation, W

0.6

1^st grid circuit resistance, kOhm

500

Envelope temperature, ^oC

140

Sinusoidal vibration

frequency, Hz

acceleration, g

5-600

6

Multiple impacts acceleration, g

150

Single impact acceleration, g

150

Linear acceleration, g

100

Ambient air temperature, ^oC

-60..+90