4CX400H

4CX400H

General

Tetrode.
Envelope: metal-ceramic.
Cooling: forced air.
Mass 220 g.

Lead diagram

General characteristics

Filament voltage, Volt 6.3

Anode voltage, Volt 1000

2^nd grid voltage, Volt 325

Plate current 400 mA

Filament (heater) current, A 3.15±0.2

Pulse anode current, A no less than 0.7

1^st grid voltage -14.5±7.5 Volt

1^st grid cut-off voltage £ 60 Volt

Mutual conductance 20 to 34 mA/V

Output power no less than 250 W

Inter electrode capacitance, pF:

input 24

output 7

transfer £ 0.08

Operation time, h more than 1000

Limited operating values

Filament voltage, V 6 to 6.6

Anode voltage, steady component, V 2100

Peak anode voltage, V 4000

1^st grid current 5 mA

1^st grid voltage, V -60

2^nd grid voltage, V 325

Cathode voltage, steady component, V 400 mA

Cathode pulse current, A 34

Anode dissipation, W 400

1^st grid dissipation, W 0.2

2^nd grid dissipation, W 8

Operating frequency 500 MHz

Plate-grid and plate curves

Filament voltage, Volt	6.3
Anode voltage, Volt	1000
2^nd grid voltage, Volt	325
Plate current	400 mA

Filament (heater) current, A	3.15±0.2
Pulse anode current, A	no less than 0.7
1^st grid voltage	-14.5±7.5 Volt
1^st grid cut-off voltage	£ 60 Volt
Mutual conductance	20 to 34 mA/V
Output power	no less than 250 W
Inter electrode capacitance, pF:
input	24
output	7
transfer	£ 0.08
Operation time, h	more than 1000

Filament voltage, V	6 to 6.6
Anode voltage, steady component, V	2100
Peak anode voltage, V	4000
1^st grid current	5 mA
1^st grid voltage, V	-60
2^nd grid voltage, V	325
Cathode voltage, steady component, V	400 mA
Cathode pulse current, A	34
Anode dissipation, W	400
1^st grid dissipation, W	0.2
2^nd grid dissipation, W	8
Operating frequency	500 MHz