1X2A

Revised directly heated high-voltage television flyback rectifier for CRT accelerating-voltage supplies. Its low-power filament floats at EHT potential while rectifying horizontal-output transformer pulses.

Directly heatedCold cathodeCommon cathodeDissimilar

Sections: 1
Base: 9Y
Socket code: B9A
Base pins: 9
Nominal heater: 1.25 V / 200 mA

Description

The 1X2-A is a miniature power to the anode of the television picture tube. hal f-wave rectifier designed for use in television The 1X2-A is intended primarily for use in fiy-back receivers as the high-voltage rectifier to supply types of power supplies.

Socket description

Small-button Noval 9-contact

General specifications

Tube and section characteristics

Properties common to every published source and operating point.

Heater and base

Base: 9Y
Socket code: B9A
Base pins: 9
Nominal heater voltage: 1.25 V
Nominal heater current: 200 mA
Parallel heater voltage: -
Parallel heater current: -
Series capable: No

9Y - Terminal pinout

Electrical assignments shared by every tube using this base designation.

Terminal	Section	Connection	Evidence
PIN1F1	—	F — Filament Transcribed from EIA chart; manufacturer confirmation pending	Unverified EIA Base Connections, printed page 131, 9Y
PIN2F2	—	F — Filament Transcribed from EIA chart; manufacturer confirmation pending	Unverified EIA Base Connections, printed page 131, 9Y
PIN3IC	—	IC Transcribed from EIA chart; manufacturer confirmation pending	Unverified EIA Base Connections, printed page 131, 9Y
PIN4F1	—	F — Filament Transcribed from EIA chart; manufacturer confirmation pending	Unverified EIA Base Connections, printed page 131, 9Y
PIN5F2	—	F — Filament Transcribed from EIA chart; manufacturer confirmation pending	Unverified EIA Base Connections, printed page 131, 9Y
PIN6F1	—	F — Filament Transcribed from EIA chart; manufacturer confirmation pending	Unverified EIA Base Connections, printed page 131, 9Y
PIN7IC	—	IC Transcribed from EIA chart; manufacturer confirmation pending	Unverified EIA Base Connections, printed page 131, 9Y
PIN8F2	—	F — Filament Transcribed from EIA chart; manufacturer confirmation pending	Unverified EIA Base Connections, printed page 131, 9Y
PIN9F1	—	F — Filament Transcribed from EIA chart; manufacturer confirmation pending	Unverified EIA Base Connections, printed page 131, 9Y
CAP1P	A	P — Plate (Anode) Transcribed from EIA chart; manufacturer confirmation pending	Unverified EIA Base Connections, printed page 131, 9Y

Section ratings

1 physical section, each with unique specifications.

Section 1

Rectifier

X-ray radiationInterelectrode capacitances

Rectifier peak inverse voltage: 20000 V
Rectifier nominal output current: 1 mA
Rectifier peak forward current: 10 mA
Rectifier forward voltage drop: 100 V

Directly heated half-wave high-voltage television flyback rectifier, A revision.

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

195X General Electric Essential Characteristics

Published operating points and test conditions from this source.

SECTION 1

Rectifier

Other

Maximum inverse voltage
16000 V
TVFlyback; InverseVoltageDCComponent
Maximum DC output current
0.5 mA
TVFlyback; InverseVoltageDCComponent
Maximum peak current
45 mA
TVFlyback; InverseVoltageDCComponent

Characteristics

Forward voltage drop
100 V
TVFlyback; InverseVoltageDCComponent; At 7 mA DC

Data set 02

1961 Tung Sol

Published operating points and test conditions from this source.

SECTION 1

Rectifier

Other

Heater voltage
1.25 V
Nominal
Heater current
200 mA
Nominal