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2T450E

Directly heated high-vacuum half-wave rectifier with thoriated-tungsten filament for very-high-voltage supplies. Rated for approximately 30 kV peak inverse voltage, 100 mA DC output, and 400 mA peak current.

Directly heatedCold cathodeCommon cathodeDissimilar

Sections: 1
Base: B4A
Socket code: B4A
Base pins: 4
Nominal heater: 5 V / 10 A

Description

Half-wave high-vacuum rectifier; thoriated-tungsten filament.

Socket description

4-contact B4A physical base

General specifications

Tube and section characteristics

Properties common to every published source and operating point.

Heater and base

Base: B4A
Socket code: B4A
Base pins: 4
Nominal heater voltage: 5 V
Nominal heater current: 10 A
Parallel heater voltage: -
Parallel heater current: -
Series capable: No

B4A - 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

Rectifier

X-ray radiationInterelectrode capacitances

Rectifier peak inverse voltage: 30000 V
Rectifier nominal output current: 100 mA
Rectifier peak forward current: 400 mA

Extracted semantically from complete approved 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

Rectifier

Other

Maximum anode dissipation
60 W
Maximum peak anode current
600 mA
PIV=15kV
Maximum average anode current
150 mA
PIV=15kV