Skip to main content

Rectifier - TV Line Scan Boost ·Rectifier

1BQ2

High-voltage television flyback/EHT rectifier designed to convert horizontal-output transformer pulses into the DC accelerating supply required by the CRT.

Directly heatedCold cathodeCommon cathodeDissimilar
Sections
1
Base
E91
Socket code
-
Base pins
9
Nominal heater
1.4 V / 600 mA

Description

Single-anode high-vacuum rectifier for television EHT supplies from the line time base.

General specifications

Tube and section characteristics

Properties common to every published source and operating point.

Heater and base

Base
E91
Socket code
-
Base pins
9
Nominal heater voltage
1.4 V
Nominal heater current
600 mA
Parallel heater voltage
-
Parallel heater current
-
Series capable
No

E91 - 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
25000 V
Rectifier nominal output current
0.5 mA
Rectifier peak forward current
50 mA

Published ratings/characteristics promoted where applicable; additional values retained as parameters.

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

1953 Amperex

Published operating points and test conditions from this source.

SECTION 1

Rectifier

Other

  • Output voltage

    20000 V

  • Output current

    200 uA