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4061

Integrated dual-triode L-band oscillator-amplifier assembly specifically designed for 1090 MHz airborne transponder service. Separate oscillator and amplifier sections share one compact assembly, providing pulsed microwave transmission for aircraft identification equipment.

Directly heatedCold cathodeCommon cathodeDissimilar

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

Description

Integrated L-band pencil-tube oscillator-amplifier assembly for 1090 MHz airborne 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: 1100 V
Max plate dissipation: 9 W
Max grid dissipation: 1 W

Oscillator unit in integrated 1090-MHz assembly.

Section 2

Triode

X-ray radiationInterelectrode capacitances

Max plate voltage: 1100 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
1100 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
1100 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
500 W
1090MHz

Characteristic

Tuning range
15 MHz
Amplifier