7642

Traveling-wave microwave amplifier providing broadband RF gain through interaction between an electron beam and a slow-wave structure.

Directly heatedCold cathodeCommon cathodeDissimilarSpecialized

Sections: 1
Base: -
Socket code: B9A
Base pins: -
Nominal heater: 6.3 V / 1.75 A

Description

The 7642 is a S-band traveling-wave tube. The supplied datasheet was processed for heater or filament data, maximum ratings, operating characteristics, capacitances where published, and service-specific power or frequency data.

Socket description

Small-button Noval 9-contact

General specifications

Tube and section characteristics

Properties common to every published source and operating point.

Heater and base

Base: -
Socket code: B9A
Base pins: -
Nominal heater voltage: 6.3 V
Nominal heater current: 1.75 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

TravelingWave

X-ray radiationInterelectrode capacitances

Max plate voltage: 3000 V
Max screen voltage: 1700 V
Max cathode current: 80 mA

Published ratings/characteristics promoted from supplied datasheet.

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

TravelingWave

Characteristics

Frequency Minimum
1700 MHz
S-band traveling-wave output amplifier
Frequency Maximum
2300 MHz
S-band traveling-wave output amplifier
Minimum Cathode Heating Time
3 min
S-band traveling-wave output amplifier

Other

Maximum DC Collector Voltage
3000 V
S-band traveling-wave output amplifier
Maximum DC Helix Voltage
2500 V
S-band traveling-wave output amplifier
Maximum DC Grid-No.2 Voltage
1700 V
S-band traveling-wave output amplifier
Maximum DC Collector Current
80 mA
S-band traveling-wave output amplifier
Maximum RF Power Input
5 W
S-band traveling-wave output amplifier
Typical Collector Voltage
2000 V
S-band traveling-wave output amplifier
Typical Helix Voltage
2250 V
S-band traveling-wave output amplifier
Saturated Power Output
20 W
S-band traveling-wave output amplifier