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7357

Rugged high-power-sensitivity beam-power transmitting tube with a 26.5-volt heater, intended for demanding RF power service.

Directly heatedCold cathodeCommon cathodeDissimilar

Sections: 1
Base: -
Socket code: B9A
Base pins: -
Nominal heater: 26.5 V / 300 mA

Description

The 7357 is a beam-power transmitting 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: 26.5 V
Nominal heater current: 300 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

Beam Power

X-ray radiationInterelectrode capacitances

Transconductance: 0.006 S
Max plate voltage: 750 V
Max screen voltage: 250 V
Max plate dissipation: 25 W
Max screen dissipation: 3 W
Max cathode current: 150 mA

Representative electrical section from supplied RCA data 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

1971 RCA HB3 Binder 6 of 7

Published operating points and test conditions from this source.

SECTION 1

Beam Power

Other

Maximum DC Plate Voltage
750 V
Inherited from explicitly referenced 6146W/7212 parent except heater characteristics
Maximum DC Screen Voltage
250 V
Inherited from explicitly referenced 6146W/7212 parent except heater characteristics
Maximum DC Plate Current
150 mA
Inherited from explicitly referenced 6146W/7212 parent except heater characteristics
Plate Dissipation
25 W
Inherited from explicitly referenced 6146W/7212 parent except heater characteristics
Screen Input
3 W
Inherited from explicitly referenced 6146W/7212 parent except heater characteristics
Typical RF Power Output
30 W
Inherited from explicitly referenced 6146W/7212 parent except heater characteristics

Characteristics

Transconductance
6000 µS
Inherited from explicitly referenced 6146W/7212 parent except heater characteristics