8139

Five-inch direct-view storage tube with an electrostatically focused writing gun and flood viewing gun, providing persistent stored electronic displays.

Directly heatedCold cathodeCommon cathodeDissimilarSpecialized

Sections: 2
Base: -
Socket code: -
Base pins: -
Nominal heater: 6.3 V / 600 mA

Description

Five-inch direct-view storage tube with electrostatically focused write gun and flood viewing gun.

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: 6.3 V
Nominal heater current: 600 mA
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

2 physical sections, each with unique specifications.

Section 1

Cathode Ray

X-ray radiationInterelectrode capacitances

Max plate voltage: 10000 V

Write gun section of dual-gun storage tube.

Section 2

Cathode Ray

X-ray radiationInterelectrode capacitances

Max plate voltage: 10000 V

Read/flood gun section of dual-gun storage tube.

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

1971 Machlette Laboratories

Published operating points and test conditions from this source.

SECTION 1

Cathode Ray

Other

Write Gun Cathode Voltage
-2500 V
WriteGun
Write Gun Heater-Cathode Peak Voltage
180 V
WriteGun
Viewing Screen Voltage
10000 V

SECTION 2

Cathode Ray

Other

Storage Mesh Voltage Maximum
200 V
Collector Mesh Voltage
300 V
Flood Gun Anode Voltage
200 V
Viewing Screen Dissipation
10 W