A2272

Indirectly heated high-voltage vacuum diode for rectifier or inverse-diode service at elevated ambient temperatures, providing approximately 16 kV inverse-voltage capability.

Directly heatedCold cathodeCommon cathodeDissimilar

Sections: 1
Base: -
Socket code: -
Base pins: -
Nominal heater: 6.3 V / 1.6 A

Description

The A2272 is a high-voltage vacuum diode with an indirectly heated cathode, suitable for rectifier or inverse-diode service at high ambient temperatures.

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: 6.3 V
Nominal heater current: 1.6 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

Rectifier

X-ray radiationInterelectrode capacitances

Max plate dissipation: 10 W
Rectifier peak inverse voltage: 16000 V
Rectifier nominal output current: 100 mA
Rectifier peak forward current: 600 mA
Rectifier max heater-cathode voltage: 250 V
Rectifier warm-up time: 60 s

Published maximum ratings and characteristics audited; remaining useful numerical data retained in TUBE_SECTION_PARAMETER.

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

1955 Marconi

Published operating points and test conditions from this source.

SECTION 1

Rectifier

Other

HIGH VOLTAGE DIODE RA2
272 V
HIGH VOLTAGE DIODE RA2272
*Ia {pulse) [1]
7
*Ia {pulse) 7-5 max. A
*Ia {pulse) [2]
-5
*Ia {pulse) 7-5 max. A
Max. frequency of fault= [1]
1
Max. frequency of fault=1 per 5 minutes.
Max. frequency of fault= [2]
5
Max. frequency of fault=1 per 5 minutes.
Heater voltage
6.3 V
Published heater rating.
Heater current
1.6 A
Approximate published heater current.
Peak inverse voltage
16000 V
Maximum rating in rectifier and inverse-diode service.
DC output current
100 mA
Maximum rectifier rating.
Peak cathode current
600 mA
Maximum rectifier rating.
Surge anode current
2 A
Maximum rectifier rating.
Warmup time
60 s
Minimum heater warmup time.