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Voltage Pentode ·Pentode

5A152M

Standard Telephones pentode with published technical characteristics, ratings, and operating information. The available source establishes pentode signal service but does not explicitly identify a sufficiently narrow application category for further functional reassignment.

Directly heatedCold cathodeCommon cathodeDissimilar
Sections
1
Base
-
Socket code
-
Base pins
-
Nominal heater
6.3 V / 470 mA

Description

5A152M Pentode. Technical characteristics, ratings, and operating information are provided in the approved Standard Valves datasheet.

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
470 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

Pentode

X-ray radiationInterelectrode capacitances
Max plate voltage
250 V
Max screen voltage
150 V
Max plate dissipation
5 W

Ratings and characteristics extracted from 5A152M.pdf.

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

1946 Standard Telephone and Cables

Published operating points and test conditions from this source.

SECTION 1

Pentode

Other

  • Voltage

    6.3 v

  • Nominal curren

    470 mA

  • Grid to anode

    0.018 pF

  • Inpu

    10 pF

  • Outpu

    5 pF

  • Maximum direct anode voltage

    250 v

  • Maximum direct screen voltage

    150 v

  • Maximum direct screen curren

    5 mA

  • Maximum anode dissipation

    5 w

  • May 1947

    5 A

  • Direct anode voltage

    250 A

  • Direct anode curren

    10 mA

  • Direct screen voltage

    150 v

  • Direct screen curren

    2 mA

  • Direct suppressor voltage

    0 v

  • May 1947

    5 A

Characteristic

  • Mutual conductance (at la |10mA)

    7.5 mA