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Power - Tetrode (NOT beam) ·Tetrode-Tetrode

6907

Special Amperex radiation-cooled twin tetrode, developed as a high-frequency 832A variant for mobile RF amplification, frequency multiplication, and modulation service.

Directly heatedCold cathodeCommon cathodeDissimilar
Sections
2
Base
-
Socket code
-
Base pins
-
Nominal heater
12.6 V / 650 mA

Description

Special Amperex radiation-cooled twin tetrode, an HF version of the 832A, intended for mobile RF amplifier, frequency-multiplier and modulator service.

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
12.6 V
Nominal heater current
650 mA
Parallel heater voltage
6.3 V
Parallel heater current
1.3 A
Series capable
Yes

Terminal pinout

Electrical assignments shared by every tube using this base designation.

No verified pinout is recorded for this base designation.

Section ratings

2 physical sections, each with unique specifications.

Section 1

Tetrode

X-ray radiationInterelectrode capacitances
Transconductance
0.0025 S
Amplification factor
8
Max plate voltage
600 V
Max plate dissipation
10 W

Representative electrical section; twin tetrode sections are identical and compressed per locked rule.

Section 2

Tetrode

X-ray radiationInterelectrode capacitances
Transconductance
0.0025 S
Amplification factor
8
Max plate voltage
600 V
Max plate dissipation
10 W

Identical second physical Tetrode section; duplicated from representative section per physical-section-row policy.

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

1961 Tung Sol

Published operating points and test conditions from this source.

SECTION 1

Tetrode

Other

  • Heater voltage

    12.6 V

    Nominal

  • Heater current

    650 mA

    Nominal

  • Maximum operating frequency

    600 MHz

  • RF amplifier input power

    90 W

    150 MHz

  • Total plate dissipation

    20 W

    BothSections

Data set 02

1963 Amperex Condensed

Published operating points and test conditions from this source.

SECTION 1

Tetrode

Other

  • Maximum plate dissipation CCS

    20 W

    TwinTube CCS

  • Maximum plate dissipation ICAS

    25 W

    TwinTube ICAS

  • Plate voltage

    600 V

    CCS ClassC

  • Plate current

    100 mA

    TwinTube CCS

  • Power output

    42 W

    TwinTube CCS

  • Grid voltage

    -60 V

    CCS ClassC

  • Grid current

    1.4 mA

    CCS ClassC

  • Screen voltage

    250 V

    CCS ClassC

  • Plate voltage

    750 V

    ICAS ClassC

  • Plate current

    150 mA

    TwinTube ICAS

  • Power output

    79 W

    TwinTube ICAS

  • Grid voltage

    -60 V

    ICAS ClassC

  • Grid current

    2 mA

    ICAS ClassC

  • Screen voltage

    250 V

    ICAS ClassC

Characteristic

  • Maximum frequency

    300 MHz

    FullInput

  • Output capacitance

    4 pF

    TwinTube