TH3508

Thomson-CSF traveling-wave microwave tube designed for broadband RF amplification in specialized communications, radar, or electronic microwave equipment.

Directly heatedCold cathodeCommon cathodeDissimilarSpecialized

Sections: 1
Base: -
Socket code: -
Base pins: -
Nominal heater: 6.3 V / -

Description

Forced-air-cooled metal-ceramic C-band TWT for satellite earth-station transmitters.

General specifications

Tube and section characteristics

Properties common to every published source and operating point.

Heater and base

Base: -
Socket code: -
Base pins: -
Nominal heater voltage: 6.3 V
Nominal heater current: -
Parallel heater voltage: -
Parallel heater current: -
Series capable: No

Terminal pinout

Electrical assignments shared by every tube using this base designation.

No verified pinout is recorded for this base designation.

Section ratings

1 physical section, each with unique specifications.

Section 1

TravelingWave

X-ray radiationInterelectrode capacitances

Max plate voltage: 5400 V
Max cathode current: 300 mA

Source-dependent data

Operating conditions by source

Each block preserves the test conditions and published values from one reference. Values from different sources are intentionally kept separate.

Data set 01

1972 Thomson CSF

Published operating points and test conditions from this source.

SECTION 1

TravelingWave

Characteristic

Frequency Range
5.925-6.425 GHz
Heater Voltage
6.3 V
Heater Current
2.3-2.6 A
RF Output Power
>250 W CW
Gain
>35 dB
Cathode Current
240 to 300 mA

Other

Maximum Helix/Beam/Anode Voltage
5400 V
Cathode/Beam Current
300 mA
Warm-up Time
3 min
Collector Voltage Maximum
4500 V
Collector Dissipation Maximum
1200 W
Cooling Airflow Minimum
47 L/s