TAW1220

Water-cooled directly heated Philips transmitting triode for high-power RF amplifier and oscillator service. Approximately 18 kW plate dissipation and 12 kV capability provide major continuous transmitter power.

Directly heatedCold cathodeCommon cathodeDissimilar

Sections: 1
Base: -
Socket code: -
Base pins: -
Nominal heater: 21.5 V / 78 A

Description

Water-cooled directly heated transmitting triode paired with TAL1220 on the supplied Philips sheet.

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: 21.5 V
Nominal heater current: 78 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

Triode

X-ray radiationInterelectrode capacitances

Transconductance: 0.01 S
Amplification factor: 1
Max plate voltage: 12000 V
Max plate dissipation: 18000 W

Water-cooled directly heated transmitting triode paired with TAL1220 on the supplied Philips sheet.

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

1963 Philips Electron Tubes Handbook V4

Published operating points and test conditions from this source.

SECTION 1

Triode

Characteristic

Filament voltage
21.5 V
DirectlyHeated
Filament current
78 A
DirectlyHeated

Other

Maximum plate voltage
12000 V
Published limit
Maximum plate dissipation
18000 W
Published limit
Maximum starting filament current
160 A
FilamentStarting