U24

Indirectly heated full-wave rectifier designed for television or mains-operated power supplies, providing conventional dual-anode AC-to-DC conversion rather than flyback EHT rectification.

Directly heatedCold cathodeCommon cathodeDissimilar

Sections: 2
Base: -
Socket code: IO
Base pins: -
Nominal heater: 2 V / 150 mA

Description

Rectifier for television or mains power-supply service.

Socket description

International Octal

General specifications

Tube and section characteristics

Properties common to every published source and operating point.

Heater and base

Base: -
Socket code: IO
Base pins: -
Nominal heater voltage: 2 V
Nominal heater current: 150 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

2 physical sections, each with unique specifications.

Section 1

Rectifier

X-ray radiationInterelectrode capacitances

Rectifier peak forward current: 15 mA

Section 2

Rectifier

X-ray radiationInterelectrode capacitances

Rectifier peak forward current: 15 mA

Second physical rectifier section; electrical properties populated from applicable published ratings.

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

1960 Mazda

Published operating points and test conditions from this source.

SECTION 1

Rectifier

Characteristics

Anode-heater-shield capacitance
1.3 pF

SECTION 2

Rectifier

Characteristics

Anode-heater-shield capacitance
1.3 pF