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4X150H

General

Tetrode.

Envelope: metal-to-ceramic.

Cooling: forced air.

Mass 150 g.

Lead diagram

General characteristics

Filament voltage, Volt

6

Anode voltage, Volt

2000

2nd grid voltage, Volt

400

Plate current, mA

350

Filament (heater) current, A

3.10.5

1st grid voltage, Volt

-205

2nd grid current, mA

no more than 18

Gain coefficient of 1st grid in relative to 2nd grid

13.54.5

Mutual conductance, mA/V

-226

Warm-up time

60 sec

Oscillating power, W

no less than 250 W

Inter electrode capacitance, pF:

input

29

output

7.5

transfer

0.06

Operation time, h

more than 1000

Limited operating values

Cathode current (steady component), A

0.36

Cathode current (peak component), A

1.2

Filament voltage, V

5.7 to 6.3

Anode voltage, V

2000

Peak anode voltage, V

3500

2nd grid voltage, V

400

1st grid voltage, V

-150

Cathode-heater voltage, V

100

Anode dissipation, W

350

2nd grid dissipation, W

8

1st grid dissipation, W

2

Operating frequency

250 MHz

Plate-grid and plate curves

Plate curves Plate-grid curves