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4071

Dual UHF/L-band pulse triode assembly for paired oscillator and amplifier operation near 1090 MHz. The amplifier section provides several hundred watts of peak output while the companion oscillator operates across the same narrow transponder-frequency range.

Directly heatedCold cathodeCommon cathodeDissimilar

Sections: 2
Base: -
Socket code: -
Base pins: -
Nominal heater: 6.3 V / 660 mA

Description

Integrated pencil-tube oscillator-amplifier for 1090 MHz pulsed transponder 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: 6.3 V
Nominal heater current: 660 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

2 physical sections, each with unique specifications.

Section 1

Triode

X-ray radiationInterelectrode capacitances

Max plate voltage: 1050 V
Max plate dissipation: 9 W
Max grid dissipation: 1 W
Max cathode current: 700 mA

Oscillator unit in integrated 1090-MHz assembly.

Section 2

Triode

X-ray radiationInterelectrode capacitances

Max plate voltage: 1050 V
Max plate dissipation: 9 W
Max grid dissipation: 1 W
Max cathode current: 2 A

Amplifier unit in integrated 1090-MHz assembly.

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
660 mA
Operating frequency
1090 MHz
Oscillator
Maximum DC plate voltage
1050 V
Oscillator
Peak heater-cathode voltage
60 V
Oscillator
Duty factor maximum
0.01
LongTerm
Pulse duration
0.45 us
Typical
Peak oscillator grid current
500 mA
Peak oscillator plate current
700 mA

Characteristic

Tuning range
15 MHz
Oscillator

SECTION 2

Triode

Other

Operating frequency
1090 MHz
Amplifier
Maximum DC plate voltage
1050 V
Amplifier
Peak heater-cathode voltage
60 V
Amplifier
Duty factor maximum
0.01
LongTerm
Pulse duration
0.45 us
Typical
Peak amplifier cathode current
2 A
Peak amplifier plate current
1.5 A
Useful peak power output
600 W
1090MHz

Characteristic

Tuning range
15 MHz
Amplifier