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Specialized - Photo Tube ·LightSource

ED50

Gas-discharge stroboscopic light source intended for high-intensity repetitive flash applications.

Directly heatedCold cathodeCommon cathodeDissimilarSpecialized
Sections
1
Base
-
Socket code
-
Base pins
-
Nominal heater
-

Description

The Ferranti ED50 is a gas-discharge stroboscopic light source intended for controlled high-intensity flashes.

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

LightSource

X-ray radiationInterelectrode capacitances
Max plate voltage
600 V

Arc-discharge stroboscopic light-source section; representative section where repeated.

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

LightSource

Other

  • Maximum Static Anode Voltage

    600 V

  • Maximum Working Anode Voltage

    550 V

  • Maximum Dissipation

    10 W

  • Maximum Flash Repetition Rate

    10 Hz

  • Trigger Voltage

    5 kV

    PeakPulse

  • DC Supply Voltage

    350 V

  • Charging Resistor

    75000 ohm

  • Discharge Capacitor

    32 uF

    FlashRate=0-10Hz; Supply=350V

  • Discharge Capacitor

    80 uF

    FlashRate=0-10Hz; Supply=500V

Characteristics

  • Minimum Working Anode Voltage

    350 V