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4072

High-power pulsed L-band pencil triode for oscillator service around 1090 MHz. Kilovolt plate pulses and ampere-level peak current produce roughly 500 W useful peak output for specialized transponder-type microwave transmitters.

Directly heatedCold cathodeCommon cathodeDissimilar

Sections: 1
Base: -
Socket code: -
Base pins: -
Nominal heater: 6.3 V / 330 mA

Description

L-band cavity pencil-tube oscillator for 1090 MHz pulsed operation.

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: 330 mA
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

Max plate voltage: 1540 V
Max plate dissipation: 15 W
Max grid dissipation: 1 W
Max cathode current: 1.2 A

1090-MHz cavity pencil-tube oscillator.

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

1971 RCA HB3 Binder 6 of 7

Published operating points and test conditions from this source.

SECTION 1

Triode

Other

Heater/filament voltage
6.3 V
Heater/filament current
330 mA
Operating frequency
1090 MHz
Maximum DC plate voltage
1540 V
Maximum negative grid bias
100 V
Magnitude
Peak plate current
1.2 A
Peak grid current
700 mA
Plate dissipation
15 W
Grid dissipation
1 W
Peak heater-cathode voltage
60 V
BothPolarities
Duty factor maximum
0.01
Typical plate voltage
1400 V
1090MHz
Typical useful peak output
500 W
1090MHz

Characteristic

Tuning range
15 MHz