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VI410050

Forced-air-cooled indirectly heated oxide-cathode pulse rectifier, designated VI4-100/50, designed primarily as a clipping element in cyclic or pulse-burst operation with approximately 50 kV reverse-voltage capability.

Directly heatedCold cathodeCommon cathodeDissimilar

Sections: 1
Base: -
Socket code: -
Base pins: -
Nominal heater: 27 V / -

Description

The VI4-100/50 is an indirectly heated oxide-cathode pulse rectifier tube designed to operate as a clipping element in cyclic or pulse-burst mode. It uses a glass-to-metal envelope and forced-air anode cooling.

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: 27 V
Nominal heater current: -
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 voltage: 25000 V
Max plate dissipation: 2500 W
Rectifier peak inverse voltage: 50000 V
Rectifier peak forward current: 100 A
Rectifier warm-up time: 180 s

Pulse rectifier. Positive anode-voltage limit 25 kV; peak reverse-voltage limit 50 kV. Voltage-change data retained as conditioned parameters rather than mapped to forward-voltage-drop.

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

1968 Electronintorg

Published operating points and test conditions from this source.

SECTION 1

Rectifier

Characteristic

Heater Voltage
27 V
Heater Current
23 A to 35 A
Published minimum/maximum
Peak Voltage Change
2.5 kV
HeaterVoltage=27V; PeakAnodeCurrent=100A; PulseDuration=1-3us; DutyFactorDenominator=200
Peak Voltage Change
2.65 kV
HeaterVoltage=24.3V; PeakAnodeCurrent=100A; PulseDuration=1-3us; DutyFactorDenominator=200
Warm-up Test Peak Anode Current
90 A
VoltageChange=2.5kV; PulseDuration=1-3us; DutyFactorDenominator=200

Other

Heater Voltage
24.5 to 29.5 V
Limit operating range
Positive Anode Voltage Maximum
25 kV
Peak Anode Reverse Voltage
50 kV
Anode Dissipation Maximum
2.5 kW
Peak Anode Current Maximum
100 A
Minimum Warm-up Time
180 s
Minimum Peak-Anode-Current 1/Duty Factor
200
Maximum Pulse Duration
3 us
Anode Temperature Maximum
150 C
Bulb Temperature Maximum
180 C

Environmental

Vibration Frequency Range
1 to 80 Hz
Vibration Acceleration
98 m/s2
Multiple-Impact Acceleration
392 m/s2
Ambient Temperature
-60 to 85 C
Relative Humidity Maximum
98 percent
Temperature<=35C