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Specialized - Ballast ·Ballast

340

Philips current-regulator ballast tube designed to maintain approximately 0.9 A over a 3–10 V operating range.

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

Description

Philips current-regulator ballast tube nominally regulating about 0.9 A over a 3 to 10 V operating range.

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

Ballast

X-ray radiationInterelectrode capacitances
Regulator minimum current
850 mA
Regulator maximum current
930 mA
Regulator maintaining voltage
7 V

Published ratings and characteristics promoted semantically from the approved Philips source.

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

1957 Philips Receiving and Amplifying Tubes

Published operating points and test conditions from this source.

SECTION 1

Ballast

Characteristic

  • Nominal Regulating Current

    900 mA

  • Operating Voltage Minimum

    3 V

  • Operating Voltage Maximum

    10 V

  • Current-Tolerance Test Voltage

    7 V

  • Current Tolerance Minimum

    850 mA

    From tube to tube

  • Current Tolerance Maximum

    930 mA

    From tube to tube