1U1

Ballast tube designed for approximately a one-volt drop at a 740 mA operating current.

Directly heatedCold cathodeCommon cathodeDissimilarSpecialized

Sections: 1
Base: -
Socket code: OCTAL6
Base pins: 6
Nominal heater: -

Description

One-volt-drop 740 mA ballast tube.

Socket description

Octal 6-contact base

General specifications

Tube and section characteristics

Properties common to every published source and operating point.

Heater and base

Base: -
Socket code: OCTAL6
Base pins: 6
Nominal heater voltage: -
Nominal heater current: 740 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

1 physical section, each with unique specifications.

Section 1

Ballast

X-ray radiationInterelectrode capacitances

No fixed ratings are recorded for this section.

Current-regulating ballast/reference source; no ordinary electrode ratings/characteristics table is published, so promoted active-section fields are intentionally not inferred.

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

1938 National Union

Published operating points and test conditions from this source.

SECTION 1

Ballast

Other

formation on a
1 volt
Published source value; see source line context.
type of shell and is based in an oetal
6 in
Published source value; see source line context.