1Y2

Directly heated high-voltage half-wave rectifier for very-low-current supplies. Its extremely high inverse-voltage capability and modest filament requirements suit specialized high-voltage electronic equipment.

Directly heatedCold cathodeCommon cathodeDissimilar

Sections: 1
Base: 4P
Socket code: -
Base pins: -
Nominal heater: 1.5 V / 290 mA

Description

Directly heated half-wave high-voltage rectifier with a 50 kV peak-inverse-voltage rating. Published maximum ratings, characteristics, and representative operating conditions were extracted from the approved manual page.

General specifications

Tube and section characteristics

Properties common to every published source and operating point.

Heater and base

Base: 4P
Socket code: -
Base pins: -
Nominal heater voltage: 1.5 V
Nominal heater current: 290 mA
Parallel heater voltage: -
Parallel heater current: -
Series capable: No

4P - 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: 50000 V
Rectifier nominal output current: 2 mA
Rectifier peak forward current: 10 mA
Rectifier forward voltage drop: 100 V

Directly heated half-wave high-voltage rectifier with a 50 kV peak-inverse-voltage rating.

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
50000 V
HalfWaveRectifier
Maximum DC output current
2 mA
HalfWaveRectifier
Maximum peak current
10 mA
HalfWaveRectifier

Characteristics

Forward voltage drop
100 V
HalfWaveRectifier; At 8 mA DC