TH361

Forced-air-cooled transmitting tetrode designed for television and RF power service. Its output construction supports professional broadcast and radio-frequency amplifier applications.

Directly heatedCold cathodeCommon cathodeDissimilar

Sections: 1
Base: -
Socket code: -
Base pins: -
Nominal heater: 7 V / 140 A

Description

Forced-air-cooled transmitting tetrode for television and RF power service.

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: 7 V
Nominal heater current: 140 A
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

Tetrode

X-ray radiationInterelectrode capacitances

Max plate voltage: 8000 V
Max screen voltage: 800 V
Max plate dissipation: 12000 W
Max screen dissipation: 250 W
Max grid dissipation: 100 W
Max cathode current: 40 A

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

Tetrode

Other

Operating Frequency
300 MHz
Maximum Anode Voltage
8000 V
Maximum Anode Dissipation
12000 W
Maximum Screen/Grid 2 Voltage
800 V
Maximum Screen/Grid 2 Dissipation
250 W
Maximum Grid Dissipation
100 W
Maximum/Peak Cathode Current
40 A
Typical RF Output Power
12 kW
Driving Power
250-300 W

Characteristic

Heater/Filament Voltage
7 V
Heater/Filament Current
140 A

Capacitance

Grid-Cathode Capacitance
published pF
Grid-Anode Capacitance
published pF