Skip to main content
Tube Tinker — Electron Tube Database
Alternatives & variationsDownload PDF datasheet

Power - Beam (NOT sweep) ·BeamPower

8156

Compactron beam pentode designed for Class-C radio-frequency power-amplifier and oscillator service.

Directly heatedCold cathodeCommon cathodeDissimilar
Sections
1
Base
12EU
Socket code
B12C
Base pins
12
Nominal heater
13.5 V / 300 mA

Description

Compactron beam pentode for Class C radio-frequency power amplifier and oscillator service.

Socket description

Duodecar 12-contact

General specifications

Tube and section characteristics

Properties common to every published source and operating point.

Heater and base

Base
12EU
Socket code
B12C
Base pins
12
Nominal heater voltage
13.5 V
Nominal heater current
300 mA
Parallel heater voltage
-
Parallel heater current
-
Series capable
No

12EU - 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

Beam Power

X-ray radiationInterelectrode capacitances
Transconductance
0.0076 S
Max plate voltage
600 V
Max screen voltage
250 V
Max plate dissipation
15 W
Max screen dissipation
2.5 W

Maximum values use the highest clearly published service rating; service-specific lower limits remain in 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

1968 General Electric Co

Published operating points and test conditions from this source.

SECTION 1

Beam Power

Other

  • HeaterOrFilamentVoltageNominal

    13.5 V

  • HeaterOrFilamentCurrentNominal

    300 mA

  • Maximum Plate Voltage

    600 V

    ICAS/IMS

  • Maximum Screen Voltage

    250 V

  • Maximum Plate Dissipation

    15 W

    IMS

  • Maximum Screen Dissipation

    2.5 W

  • Typical Plate Current

    15 mA

    PlateVoltage=200V

  • Typical Screen Current

    3.5 mA

    PlateVoltage=200V

  • Useful Power Output

    21 W

    ClassC;IMS

Characteristic

  • Transconductance

    7600 uS

    PlateVoltage=200V;ScreenVoltage=125V