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Power - Triode ·Triode

PJ7

General Electric high-vacuum Pliotron triode for amplification, relay, audio, and RF power service. Modest plate dissipation and several-hundred-volt operation make it an early general-purpose power device spanning low-frequency and radio-frequency circuits.

Directly heatedCold cathodeCommon cathodeDissimilar
Sections
1
Base
-
Socket code
B4B
Base pins
-
Nominal heater
4.5 V / 1.1 A

Description

High-vacuum Pliotron triode for amplification, relay, audio and RF power service.

Socket description

Medium 4-pin bayonet

General specifications

Tube and section characteristics

Properties common to every published source and operating point.

Heater and base

Base
-
Socket code
B4B
Base pins
-
Nominal heater voltage
4.5 V
Nominal heater current
1.1 A
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

Triode

X-ray radiationInterelectrode capacitances
Max plate voltage
350 V
Max plate dissipation
10 W
Max cathode current
40 mA

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

1968 General Electric Co

Published operating points and test conditions from this source.

SECTION 1

Triode

Other

  • D-cplate voltage . . 350

    350 V

    Published datasheet value; semantic OCR text extraction.

  • Plate dissipation AU

    7.5 W

    Published datasheet value; semantic OCR text extraction.

  • D-c plate current . L

    2.8 mA

    Published datasheet value; semantic OCR text extraction.

  • D-c plate current. . . . 32

    35 mA

    Published datasheet value; semantic OCR text extraction.

  • R-fgrid current . . e e

    2.5 A

    Published datasheet value; semantic OCR text extraction.

  • Plate dissipation 9

    10 W

    Published datasheet value; semantic OCR text extraction.

  • D-c plate voltage . 300

    300 V

    Published datasheet value; semantic OCR text extraction.

  • D-cgrid voltage . —40 —

    100 V

    Published datasheet value; semantic OCR text extraction.

  • D-c plate current . 35

    40 mA

    Published datasheet value; semantic OCR text extraction.

  • D-c grid current, 8pProX. . . . oottt e e e 8

    15 mA

    Published datasheet value; semantic OCR text extraction.

  • R-f grid current

    2 A

    Published datasheet value; semantic OCR text extraction.

  • D-cgrid voltage e —25 —

    100 V

    Published datasheet value; semantic OCR text extraction.

  • D-cplate current 35

    40 mA

    Published datasheet value; semantic OCR text extraction.

  • D-c grid current, apProX . . . . .o ot it e e e 5

    15 mA

    Published datasheet value; semantic OCR text extraction.

  • R-f grid current

    3 A

    Published datasheet value; semantic OCR text extraction.