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EN10

Cold-cathode pulse tetrode for trigger and switching circuits. Gas-discharge operation provides abrupt pulse conduction without a conventional heater.

Directly heatedCold cathodeCommon cathodeDissimilar

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

Description

The Ferranti EN10 is a neostron cold-cathode tetrode stroboscopic/relay tube emitting reddish light.

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

Cold-cathode gas-discharge tetrode section.

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

Maximum Static Anode Voltage
440 V
Maximum Working Anode Voltage
380 V
Maximum Mean Anode Current
100 mA
Maximum Repetition Frequency
250 Hz
Typical Supply Voltage
300-330 V
Trigger Pulse Amplitude
150 V
Minimum where specified
Charging Resistor
3000 ohm
Peak Inverse Anode Voltage
350 V
Maximum Average Trigger Current
10 mA
Maximum Discharge Capacitor
16 uF

Characteristics

Minimum Working Anode Voltage
240 V
Static Trigger/Striking Voltage
80-130 V
Peak Anode Current
400 A
Pulse
Peak Luminous Intensity
700 cd
Typical
Flash Duration
15 us
Typical