2V2

Filamentary high-voltage rectifier for television flyback/EHT service. It rectifies horizontal-output transformer pulses to generate CRT accelerating voltage with a low-power filament at elevated potential.

Directly heatedCold cathodeCommon cathodeDissimilar

Sections: 1
Base: 8FV
Socket code: -
Base pins: 8
Nominal heater: 2.5 V / 200 mA

Description

Directly heated high-voltage half-wave flyback rectifier with dual filament connection ratings.

General specifications

Tube and section characteristics

Properties common to every published source and operating point.

Heater and base

Base: 8FV
Socket code: -
Base pins: 8
Nominal heater voltage: 2.5 V
Nominal heater current: 200 mA
Parallel heater voltage: 1.25 V
Parallel heater current: 400 mA
Series capable: Yes

8FV - 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: 21000 V
Rectifier nominal output current: 1 mA
Rectifier peak forward current: 80 mA
Rectifier forward voltage drop: 150 V

Promoted from clearly identified printed ratings/characteristics; additional published operating points and capacitances 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

195X General Electric Essential Characteristics

Published operating points and test conditions from this source.

SECTION 1

Rectifier

Other

Filament voltage
2.5 V
Series
Filament current
200 mA
Series
Filament voltage
1.25 V
Parallel
Filament current
400 mA
Parallel
DC output current maximum
1 mA
TVFlybackRectifier
Inverse voltage DC component maximum
21000 V
TVFlybackRectifier
Peak current maximum
80 mA
TVFlybackRectifier

Characteristic

Tube voltage drop
150 V
At7mADC