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NSP1

Cold-cathode gas-discharge tetrode for stroboscopic neon-red light and very-high-peak-current pulse service. Ionized discharge produces intense short-duration conduction and light.

Directly heatedCold cathodeCommon cathodeDissimilar

Sections: 1
Base: -
Socket code: -
Base pins: -
Nominal heater: -

Description

Cold-cathode gas-discharge tetrode for stroboscopic neon-red light and very-high-peak-current pulse service.

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: -
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

Tetrode

X-ray radiationInterelectrode capacitances

Max plate voltage: 440 V
Max cathode current: 100 mA

Published Ferranti ratings and characteristics promoted where applicable; additional electrical, pulse, regulator, microwave, and operating data retained as parameters.

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

1963 Ferranti

Published operating points and test conditions from this source.

SECTION 1

Tetrode

Other

Anode voltage static maximum
440 V
Anode voltage working maximum
380 V
Anode voltage working minimum
220 V
Peak inverse anode voltage maximum
350 V
Average anode current maximum
100 mA
Discharge capacitance maximum
16 uF
Average trigger current maximum
10 mA
Flashing frequency maximum
250 Hz
Recommended peak anode current minimum
5 A
Pulse
Example peak anode current
230 A
Pulse
Example peak luminous intensity
460 cd
Pulse
DC supply voltage
300 to 330 V
Trigger pulse amplitude minimum
150 V
Pulse
Charging resistor
3000 ohm

Characteristics

Static striking voltage
80 to 130 V
Trigger current minimum at 380 V anode
50 uA
Trigger current minimum at 220 V anode
300 uA

Application

Application
Stroboscopic light / high-peak-current pulse source