3BH2

High-voltage rectifier diode for color television receivers. Its specialized role is picture-tube high-voltage generation from the television line-output system.

Directly heatedCold cathodeCommon cathodeDissimilar

Sections: 1
Base: -
Socket code: -
Base pins: -
Nominal heater: 3.15 V / 370 mA

Description

High-voltage rectifier diode intended for color television receivers; the datasheet warns that X-ray shielding may be required.

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: 3.15 V
Nominal heater current: 370 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

1 physical section, each with unique specifications.

Section 1

Rectifier

X-ray radiationInterelectrode capacitances

Rectifier peak inverse voltage: 35000 V
Rectifier nominal output current: 1.7 mA

Absolute maximum negative plate-to-cathode voltage 35 kV; X-ray shielding warning published.

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

Maximum output voltage
27500 V
Typical output voltage
25000 V
Typical plate current
1.5 mA