6P25B-V

Filament current, mA

450±45

Anode current, mA

30±7

2^nd grid current, mA

≤5

1^st grid reverse current, mkA

≤1

Cathode impulse emission current, mA

≥800

Cathode-to-heater leakage current, mkA

≤40

Mutual conductance, mA/V

4.5±1

Output power (at R_a = 3 kOhm, f = 1 kHz), mW

≥750

Output power (at R_a = 3 kOhm, f = 1 kHz, U_f = 5.7 V), mW

≥600

Nonlinear distortion factor

12%

Vibronoise voltage (at R_a = 2 kOhm), mV

≤180

Interelectrode capacitance, pF

input

output

input-to-output

cathode-to-heater

6.7±0.7

6.8±4.3

≤0.2

≤8.5

Durability, h

≥500

Durability criteria

1^st grid reverse current, mkA

output power (at R_a = 3 kOhm, f = 1 kHz), mW

≤2

≥600

Filament voltage, V

5.7..6.9

Anode voltage, V

170

Anode voltage in off-state, V

350

2^nd grid voltage, V

160

2^nd grid voltage in off-state, V

350

1^st grid negative voltage, V

100

Cathode-to-heater voltage, V

150

Cathode current, mA

50

Anode power dissipation, W

4.1

2^nd grid power dissipation, W

0.55

1^st grid circuit resistance, MOhm

0.5

Envelope temperature, ^oC

+200

Vibratory loads

frequency, Hz

acceleration, G

5..2000

10

Multiple mechanical impact acceleration, g

150

Single mechanical impact acceleration, g

500

Linear acceleration, g

100

Ambient air temperature, ^oC

-60..+200