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RY12100

Directly heated vacuum half-wave rectifier for high-voltage rectifier and surge-limiting circuits, providing approximately 40 kV inverse-voltage capability.

Directly heatedCold cathodeCommon cathodeDissimilar

Sections: 1
Base: -
Socket code: B4B
Base pins: 4
Nominal heater: 5 V / 6 A

Description

Vacuum half-wave rectifier for high-voltage rectifier and surge-limiting circuits, rated 40 kV peak inverse and 100 mA average current. Rectifier service maximum anode dissipation is 60 W; limiter service permits 12.5 kV forward anode voltage and 75 W anode dissipation. Filament may be raised to 5.8 V in limiter service.

Socket description

Medium 4-pin bayonet

General specifications

Tube and section characteristics

Properties common to every published source and operating point.

Heater and base

Base: -
Socket code: B4B
Base pins: 4
Nominal heater voltage: 5 V
Nominal heater current: 6 A
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

Max plate dissipation: 60 W
Max cathode current: 100 mA
Rectifier peak inverse voltage: 40000 V
Rectifier nominal output current: 100 mA
Rectifier peak forward current: 750 mA
Rectifier forward voltage drop: 200 V
Rectifier warm-up time: 5 s

Gas filling: Vacuum. Rectifier service maximum anode dissipation is 60 W; limiter service permits 12.5 kV forward anode voltage and 75 W anode dissipation. Filament may be raised to 5.8 V in limiter service.

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

1962 Mullard Industrial Rectifiers

Published operating points and test conditions from this source.

SECTION 1

Rectifier

Characteristic

Filling
Vacuum
Filament Voltage Tolerance
5 percent
RectifierService
Filament Current Tolerance
500 mA
At5V

Other

Filament Voltage
5.8 V
SurgeLimitingService
Maximum Anode Seal Temperature
225 C
RectifierService
Maximum Forward Anode Voltage
12500 V
LimiterService
Maximum Anode Dissipation
75 W
LimiterService
Applied AC Voltage per Valve RMS
14000 V
SinglePhaseFullWave;CapacitorInputFilter
DC Output Voltage
17000 V
SinglePhaseFullWave;CapacitorInputFilter
DC Output Current
160 mA
SinglePhaseFullWave;CapacitorInputFilter
DC Output Voltage
12500 V
SinglePhaseFullWave;ChokeInputFilter
DC Output Current
200 mA
SinglePhaseFullWave;ChokeInputFilter

Capacitance

Output Capacitance
1.4 pF