Alternatives & variations Download PDF datasheet

GTR120AS

Primed Ericsson gas-discharge reference/stabilizer with an unusually low approximately 10 V maintaining voltage and comparatively high current capability.

Directly heatedCold cathodeCommon cathodeDissimilar

Sections: 1
Base: -
Socket code: B4
Base pins: -
Nominal heater: -

Description

GTR120AS: primed voltage stabilizer/reference tube. The complete approved datasheet supplies limit ratings, characteristics and recommended operating conditions.

Socket description

European 4-pin base

General specifications

Tube and section characteristics

Properties common to every published source and operating point.

Heater and base

Base: -
Socket code: B4
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

Voltage Regulator

X-ray radiationInterelectrode capacitances

Max cathode current: 75 mA
Regulator voltage: 10 V
Regulator minimum current: 10 mA
Regulator maximum current: 75 mA
Regulator maintaining voltage: 10 V

Applicable published ratings promoted; switching, display, trigger and regulator characteristics 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

196X Ericsson Telephones Ltd

Published operating points and test conditions from this source.

SECTION 1

Voltage Regulator

Characteristics

Nominal/running voltage
10 V
Voltage stabilizer/reference tube type
Primed

Other

Maximum cathode/anode current
75 mA
Minimum cathode/anode current
10 mA