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4097A

Directly heated oxide-filament triode on a Standard British four-pin base, documented with Standard Valves construction, operating, and limiting data.

Directly heatedCold cathodeCommon cathodeDissimilar

Sections: 1
Base: -
Socket code: B4
Base pins: 4
Nominal heater: 6 V / 1.1 A

Description

Directly heated triode. SPECIFICATION. Cathode. Oxide coated filament. Constant voltage type. Base. Standard British 4-pin. Dimensions. 7 6 ib

Socket description

European 4-pin base

General specifications

Tube and section characteristics

Properties common to every published source and operating point.

Heater and base

Base: -
Socket code: B4
Base pins: 4
Nominal heater voltage: 6 V
Nominal heater current: 1.1 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

Triode

X-ray radiationInterelectrode capacitances

Plate resistance: 3000 Ω
Transconductance: 0.0033 S
Amplification factor: 10
Max plate voltage: 500 V
Max plate dissipation: 35 W
Max cathode current: 135 mA

Published ratings and characteristics promoted where directly established by the 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

1946 Standard Telephone and Cables

Published operating points and test conditions from this source.

SECTION 1

Triode

Characteristics

Mutual conductance
3300 µS
Published characteristic; normalized from mA/V

Other

Grid-anode capacity
8.5 pF
Published interelectrode capacitance