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Voltage - Triode (single) ·Triode

9002

Miniature medium-mu triode for AF/RF amplification and oscillator service through approximately 500 MHz.

Directly heatedCold cathodeCommon cathodeDissimilar
Sections
1
Base
7BS
Socket code
B7G
Base pins
7
Nominal heater
6.3 V / 150 mA

Description

Seven-pin miniature medium-mu triode for AF and RF amplifier or oscillator service through 500 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
7BS
Socket code
B7G
Base pins
7
Nominal heater voltage
6.3 V
Nominal heater current
150 mA
Parallel heater voltage
-
Parallel heater current
-
Series capable
No

7BS - Terminal pinout

Electrical assignments shared by every tube using this base designation.

TerminalSectionConnectionEvidence
PIN1PAP — Plate (Anode)

EIA source label P; independent manufacturer confirmation pending

Unverified

EIA Base Connections, printed page 128, 7BS

PIN2KAK — Cathode

EIA source label K; independent manufacturer confirmation pending

Unverified

EIA Base Connections, printed page 128, 7BS

PIN3H—H — Heater

EIA source label H; independent manufacturer confirmation pending

Unverified

EIA Base Connections, printed page 128, 7BS

PIN4H—H — Heater

EIA source label H; independent manufacturer confirmation pending

Unverified

EIA Base Connections, printed page 128, 7BS

PIN5PAP — Plate (Anode)

EIA source label P; independent manufacturer confirmation pending

Unverified

EIA Base Connections, printed page 128, 7BS

PIN6G1AG1 — Control Grid

EIA source label G1; independent manufacturer confirmation pending

Unverified

EIA Base Connections, printed page 128, 7BS

PIN7KAK — Cathode

EIA source label K; independent manufacturer confirmation pending

Unverified

EIA Base Connections, printed page 128, 7BS

Section ratings

1 physical section, each with unique specifications.

Section 1

Triode

X-ray radiationInterelectrode capacitances
Plate resistance
11400 Ω
Transconductance
0.0022 S
Amplification factor
25
Max plate voltage
250 V
Max plate dissipation
1.6 W

First published Class-A operating point used for promoted characteristics.

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

1956 RCA Transmitting Tubes

Published operating points and test conditions from this source.

SECTION 1

Triode

Characteristic

  • HeaterOrFilamentVoltage

    6.3 V

  • HeaterOrFilamentCurrent

    150 mA

  • EquivalentElectricalType

    955

    Except interelectrode capacitances

Other

  • MaximumOperatingFrequency

    500 MHz

    Reduced ratings may apply at upper frequencies

Data set 02

195X General Electric Essential Characteristics

Published operating points and test conditions from this source.

SECTION 1

Triode

Other

  • Maximum plate voltage

    250 V

    Published handbook rating

  • Plate voltage

    250 V

    ClassA

  • Control-grid bias

    7 V

    ClassA

  • Plate current

    6.3 mA

    ClassA

Characteristic

  • Plate resistance

    11400 ohm

    Published handbook characteristic

  • Transconductance

    2200 µS

    Published handbook characteristic

  • Amplification factor

    25

    Published handbook characteristic

  • Heater/filament voltage

    6.3 V

    Published heater/filament rating

  • Heater/filament current

    150 mA

    Published heater/filament rating

Data set 03

195X Raytheon Special Purpose Tubes

Published operating points and test conditions from this source.

SECTION 1

Triode

Other

  • Plate voltage

    250 V

    UHFOscillator

  • Control-grid voltage

    -7 V

    UHFOscillator

  • Plate current

    6.3 mA

    UHFOscillator

Characteristic

  • Amplification factor

    25

    Section1

  • Transconductance

    2200 µS

    Section1

Data set 04

1960 RCA Industrial and Communications Types

Published operating points and test conditions from this source.

SECTION 1

Triode

Characteristic

  • HeaterOrFilamentVoltage

    6.3 V

  • HeaterOrFilamentCurrent

    150 mA

  • MaximumOperatingFrequency

    500 MHz

    Approximate/useful limit

  • EquivalentElectricalType

    955

Data set 05

1961 Tung Sol

Published operating points and test conditions from this source.

SECTION 1

Triode

Other

  • Heater voltage

    6.3 V

  • Heater current

    150 mA

  • Plate current

    2.5 mA

    ClassA;Vp=90V

Capacitance

  • Grid-to-plate capacitance

    1.4 pF

  • Input capacitance

    1.2 pF

  • Output capacitance

    1.1 pF

Characteristic

  • Plate resistance

    11400 ohm

    ClassA;Vp=250V

  • Transconductance

    2200 uS

    ClassA;Vp=250V

Data set 06

1971 RCA HB3 Binder 3 of 7

Published operating points and test conditions from this source.

SECTION 1

Triode

Characteristics

  • Voltage

    6.3 V

    Published datasheet value; multiple numbers on a source row represent separate limits or operating conditions.

  • Current

    0.15

    Published datasheet value; multiple numbers on a source row represent separate limits or operating conditions.

  • Grid to Plate

    1.4

    Published datasheet value; multiple numbers on a source row represent separate limits or operating conditions.

  • Grid to Cathode

    1.2

    Published datasheet value; multiple numbers on a source row represent separate limits or operating conditions.

  • Plate to Cathode

    1.1

    Published datasheet value; multiple numbers on a source row represent separate limits or operating conditions.

  • Pin 1 -Plate — published value 1

    1

    Published datasheet value; multiple numbers on a source row represent separate limits or operating conditions.

  • Pin 1 -Plate — published value 2

    5

    Published datasheet value; multiple numbers on a source row represent separate limits or operating conditions.

  • Pin 1 -Plate — published value 3

    5

    Published datasheet value; multiple numbers on a source row represent separate limits or operating conditions.

  • Pin 2 -Cathode — published value 1

    2

    Published datasheet value; multiple numbers on a source row represent separate limits or operating conditions.

  • Pin 2 -Cathode — published value 2

    6

    Published datasheet value; multiple numbers on a source row represent separate limits or operating conditions.

  • Pin 3 -Heater — published value 1

    3

    Published datasheet value; multiple numbers on a source row represent separate limits or operating conditions.

  • Pin 3 -Heater — published value 2

    7

    Published datasheet value; multiple numbers on a source row represent separate limits or operating conditions.

  • Pin 4 -Heater

    4

    Published datasheet value; multiple numbers on a source row represent separate limits or operating conditions.

  • Plate — published value 1

    90 V

    Published datasheet value; multiple numbers on a source row represent separate limits or operating conditions.

  • Plate — published value 2

    135 V

    Published datasheet value; multiple numbers on a source row represent separate limits or operating conditions.

  • Plate — published value 3

    180 V

    Published datasheet value; multiple numbers on a source row represent separate limits or operating conditions.

  • Plate — published value 4

    250 V

    Published datasheet value; multiple numbers on a source row represent separate limits or operating conditions.

  • 'Grid — published value 1

    -2.5 V

    Published datasheet value; multiple numbers on a source row represent separate limits or operating conditions.

  • 'Grid — published value 2

    -5 V

    Published datasheet value; multiple numbers on a source row represent separate limits or operating conditions.

  • 'Grid — published value 3

    -7 V

    Published datasheet value; multiple numbers on a source row represent separate limits or operating conditions.

  • Plate Res — published value 1

    14700 ohm

    Published datasheet value; multiple numbers on a source row represent separate limits or operating conditions.

  • Plate Res — published value 2

    13200 ohm

    Published datasheet value; multiple numbers on a source row represent separate limits or operating conditions.

  • Plate Res — published value 3

    12500 ohm

    Published datasheet value; multiple numbers on a source row represent separate limits or operating conditions.

  • Plate Res — published value 4

    11400 ohm

    Published datasheet value; multiple numbers on a source row represent separate limits or operating conditions.

  • Plate Cur — published value 1

    2.5 mA

    Published datasheet value; multiple numbers on a source row represent separate limits or operating conditions.

  • Plate Cur — published value 2

    3.5 mA

    Published datasheet value; multiple numbers on a source row represent separate limits or operating conditions.

  • Plate Cur — published value 3

    4.5 mA

    Published datasheet value; multiple numbers on a source row represent separate limits or operating conditions.

  • Plate Cur — published value 4

    6.3 mA

    Published datasheet value; multiple numbers on a source row represent separate limits or operating conditions.

Other

  • Plate Voltage

    250 V

    Published datasheet value; multiple numbers on a source row represent separate limits or operating conditions.

  • Plate Dissipation

    1.6 mA

    Published datasheet value; multiple numbers on a source row represent separate limits or operating conditions.