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Voltage - Dual Triode (similar high frequency) ·Triode-Triode

616

High-transconductance dual triode for VHF amplifiers, push-pull oscillators, and mixer circuits, intended for operation at frequencies extending to roughly 600 MHz.

Directly heatedCold cathodeCommon cathodeDissimilar
Sections
2
Base
-
Socket code
B7G
Base pins
7
Nominal heater
6.3 V / 450 mA

Description

High-transconductance dual triode for VHF amplifiers, push-pull oscillators and mixers up to about 600 MHz.

Socket description

Miniature 7-contact

General specifications

Tube and section characteristics

Properties common to every published source and operating point.

Heater and base

Base
-
Socket code
B7G
Base pins
7
Nominal heater voltage
6.3 V
Nominal heater current
450 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

2 physical sections, each with unique specifications.

Section 1

Triode

X-ray radiationInterelectrode capacitances
Plate resistance
7100 Ω
Transconductance
0.0053 S
Amplification factor
38
Max plate voltage
330 V
Max plate dissipation
2.5 W
Max cathode current
20 mA

Representative promoted row for repeated identical sections.

Section 2

Triode

X-ray radiationInterelectrode capacitances
Plate resistance
7100 Ω
Transconductance
0.0053 S
Amplification factor
38
Max plate voltage
330 V
Max plate dissipation
2.5 W
Max cathode current
20 mA

Second physical triode restored under current one-row-per-physical-section 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

1953 RFT Rundfunk Technik

Published operating points and test conditions from this source.

SECTION 1

Triode

Other

  • HeaterVoltageNominal

    6.3 V

    Nominal

  • HeaterCurrentNominal

    450 mA

    Nominal

  • Maximum Plate Voltage

    330 V

  • Maximum Plate Dissipation

    2.5 W

  • Maximum Cathode Current

    20 mA

Characteristic

  • Transconductance

    5300 µS

    Typical

  • Amplification Factor

    38

    Typical

  • Plate Resistance

    7100 ohm

    Typical