AX50

Directly heated gas-filled full-wave rectifier for higher-current power supplies. Its heavy four-volt filament and low gas-discharge forward voltage provide efficient moderate-current rectification.

Directly heatedCold cathodeCommon cathodeDissimilar

Sections: 2
Base: -
Socket code: -
Base pins: -
Nominal heater: 4 V / 3.75 A

Description

Gas-filled directly heated full-wave rectifier for power-supply 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: 4 V
Nominal heater current: 3.75 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

2 physical sections, each with unique specifications.

Section 1

Rectifier

X-ray radiationInterelectrode capacitances

Rectifier nominal output current: 275 mA
Rectifier peak forward current: 1 A
Rectifier forward voltage drop: 15 V

Promoted from clearly identified published ratings/characteristics; additional operating points, capacitances, rectifier conditions, and application-specific values are retained in TUBE_SECTION_PARAMETER.

Section 2

Rectifier

X-ray radiationInterelectrode capacitances

Rectifier nominal output current: 275 mA
Rectifier peak forward current: 1 A
Rectifier forward voltage drop: 15 V

Second physical rectifier section; promoted electrical properties populated from identical section.

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

1963 Philips Electron Tubes Handbook V1

Published operating points and test conditions from this source.

SECTION 1

Rectifier

Other

AC supply voltage per plate maximum
500 V RMS
FullWave
DC output current maximum
275 mA
FullWave
Maximum input capacitor
64 µF
CapacitorInputFilter
Peak plate current maximum
1000 mA
CapacitorInputFilter
Choke-input inductance
6 H
ChokeInputFilter
Choke-input capacitor
50 µF
ChokeInputFilter

Characteristic

Tube voltage drop maximum
15 V
GasFilled

SECTION 2

Rectifier

Other

AC supply voltage per plate maximum
500 V RMS
FullWave

Data set 02

1999 Philips 0-D

Published operating points and test conditions from this source.

SECTION 1

Rectifier

Other

Maximum transformer secondary voltage
2x500 V RMS
CapacitorInputFilter
Maximum DC output current
275 mA
Maximum peak anode current
1000 mA
Maximum forward voltage drop
15 V
Maximum filter input capacitance
64 uF
CapacitorInputFilter
Minimum series resistance per anode
100 ohm
FilterCapacitance=16uF
Minimum series resistance per anode
150 ohm
FilterCapacitance=32uF
Minimum series resistance per anode
200 ohm
FilterCapacitance=64uF
Maximum transformer secondary voltage
500 V RMS
ChokeInputFilter

SECTION 2

Rectifier

Other

Maximum transformer secondary voltage
2x500 V RMS
CapacitorInputFilter
Maximum DC output current
275 mA