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Voltage Triode Pentode ·Pentode-Triode

E80CF

Long-life rugged triode-pentode for mixer, RF/AF amplification, oscillator, and multivibrator service.

Directly heatedCold cathodeCommon cathodeDissimilar
Sections
2
Base
NOVAL
Socket code
B9A
Base pins
9
Nominal heater
6.3 V / 330 mA

Description

Long-life rugged triode-pentode for mixer/RF/AF amplification and oscillator/multivibrator service.

Socket description

Small-button Noval 9-contact

General specifications

Tube and section characteristics

Properties common to every published source and operating point.

Heater and base

Base
NOVAL
Socket code
B9A
Base pins
9
Nominal heater voltage
6.3 V
Nominal heater current
330 mA
Parallel heater voltage
-
Parallel heater current
-
Series capable
No

NOVAL - 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
3600 Ω
Transconductance
0.005 S
Amplification factor
18
Max plate voltage
275 V
Max plate dissipation
1.75 W
Max grid dissipation
0.1 W
Max cathode current
18 mA

Special-quality long-life ruggedized triode-pentode for RF/IF amplifier, mixer, and oscillator service.

Section 2

Pentode

X-ray radiationInterelectrode capacitances
Plate resistance
400000 Ω
Transconductance
0.0062 S
Amplification factor
40
Max plate voltage
275 V
Max screen voltage
200 V
Max plate dissipation
2.15 W
Max screen dissipation
0.7 W
Max grid dissipation
0.1 W
Max cathode current
18 mA

Special-quality long-life ruggedized triode-pentode for RF/IF amplifier, mixer, and oscillator service.

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 AEG

Published operating points and test conditions from this source.

SECTION 1

Triode

Other

  • TypicalTriodePlateVoltage

    100 V

  • TypicalTriodePlateCurrent

    14.4 mA

SECTION 2

Pentode

Other

  • TypicalPentodePlateVoltage

    170 V

  • TypicalPentodePlateCurrent

    10 mA

  • TypicalPentodeScreenCurrent

    2.8 mA

Data set 02

1963 Philips Electron Tubes Handbook V1a

Published operating points and test conditions from this source.

SECTION 1

Triode

Other

  • Triode plate supply voltage

    100 V

    TriodeSection

  • Triode cathode resistor

    120 ohm

    TriodeSection

  • Triode plate current

    14 mA

    TriodeSection

Characteristic

  • Triode transconductance

    5000 uS

    TriodeSection

  • Triode amplification factor

    18

    TriodeSection

SECTION 2

Pentode

Other

  • Pentode plate supply voltage

    170 V

    PentodeSection; RF

  • Pentode screen supply voltage

    170 V

    PentodeSection; RF

  • Pentode cathode resistor

    155 ohm

    PentodeSection; RF

  • Pentode plate current

    10 mA

    PentodeSection; RF

  • Pentode screen current

    2.8 mA

    PentodeSection; RF

  • Pentode plate current

    8 mA

    PentodeSection; Mixer

Characteristic

  • Pentode transconductance

    6200 uS

    PentodeSection; RF

  • Pentode plate resistance

    0.4 MOhm

    PentodeSection; RF

  • Pentode plate resistance

    0.5 MOhm

    PentodeSection; Mixer

Data set 03

1963 Philips Electron Tubes Handbook V3

Published operating points and test conditions from this source.

SECTION 1

Triode

Characteristic

  • Heater voltage

    6.3 V

    Chauffage: indirect par C.A. ou C.C.; Vf = 6.3 V 1 )

  • Heater current

    330 mA

    Heizung : indirekt durch Wechsel- If = 330 mA

Capacitance

  • Grid capacitance

    1 pF

    Cg1P-aT(2-1) < 0.16 pF

Other

  • Plate supply voltage

    170 V

    Vba = 170 V Vba = 100 V

  • Screen-grid supply voltage

    170 V

    Vbg2 = 170 V Rg = 120 0

  • Plate current

    10 mA

    Ia = 10 mA 1 ) S = 5 mA/V 1 )

  • Transconductance

    5 mA/V

    Ia = 10 mA 1 ) S = 5 mA/V 1 )

  • Screen-grid current

    2.8 mA

    Ig2 =2.8 mA -Ig < 0.3 µA 1 )

  • Transconductance

    6.2 mA/V

    S = 6.2 mA/V 1) µ = 18

  • Amplification factor

    18

    S = 6.2 mA/V 1) µ = 18

  • Plate resistance

    0.4 kohm

    Ri = 0.4 M2

  • Transconductance

    0.3 mA/V

    -Ig1 S 0.3 µA 1 )

  • Plate supply voltage

    170 V

    Vba = 170 V

  • Screen-grid supply voltage

    170 V

    Vbg2 = 170 V

  • Cathode resistor

    330 ohm

    Rk = 330 0

  • Plate current

    8 mA

    Ia = 8c

  • Screen-grid current

    2.5 mA

    Ig2 = 2.5 mA

  • Transconductance

    0 mA/V

    S0 = 2.4 cA/V

  • Cathode current

    10 mA

    (Ik > 10 mA) = max. 200 V

  • Cathode current

    10 mA

    Vg2 (Ik < 10 mA) = max. 225 V

  • Plate dissipation

    1.2 W

    Wg2 (Wa >1.2 W ) = max. 0.7 W

  • Plate current

    6 mA

    Ia < 6 mA Ia < 6.451A

  • Transconductance

    4.3 mA/V

    S < 4.3 mq/V S < 3.5 mA

  • Plate voltage

    170 V

    Va =170V

  • Plate voltage

    170 V

    iiiiiiiiii Va =170V..u.....u••'.■iiiiiiiiiiiu..•1l

  • Plate supply voltage

    170 V

    Vba =170V

  • Screen-grid dissipation

    170 V

    Wg2=170V

  • Plate voltage

    -100 V

    Va-100V

SECTION 2

Pentode

Capacitance

  • Grid capacitance

    1 pF

    Cg1 (2-3+4+5+7.) = 5.6 pF Cg (9-4+5+7+8) _. 2.5 pP

  • Grid-to-plate capacitance

    1 pF

    Cag1(6-2) < 0.025 pP Cag (1-9) = 1.5 pF

  • Grid capacitance

    1 pF

    Cg1f(2-4+5) < 0.160 pF Cgf (9-4+5) < 0.220 pF

Other

  • Plate supply voltage

    170 V

    Vba = 170 V

  • Screen-grid supply voltage

    170 V

    Vbg2 = 170 V

  • Cathode resistor

    1550 ohm

    Rk = 1550

  • Plate current

    10 mA

    Ia 10 mA

  • Screen-grid current

    2.8 mA

    Ig2 = 2.8 mA"

Data set 04

1963 Siemens

Published operating points and test conditions from this source.

SECTION 1

Triode

Characteristic

  • Typical Plate Current

    14 mA

    TriodeSection

SECTION 2

Pentode

Characteristic

  • Typical Plate Voltage

    170 V

    PentodeSection

  • Typical Plate Current

    10 mA

    PentodeSection

  • Typical Screen Current

    2.8 mA

    PentodeSection

Data set 05

1999 Philips E-Z

Published operating points and test conditions from this source.

SECTION 1

Triode

Characteristics

  • Triode mutual conductance

    5 mA/V

    Triode section

  • Triode amplification factor

    18

    Triode section

  • Triode anode current

    14 mA

    Triode section

SECTION 2

Pentode

Other

  • Heater voltage

    6.3 V

    Published datasheet value

  • Heater voltage

    6 V

    Published datasheet value

  • Heater current

    330 mA

    Published datasheet value

  • Heater current

    347 mA

    Published datasheet value

Characteristics

  • Anode current

    10 mA

    Published datasheet value

  • Anode current

    14 mA

    Published datasheet value

  • Anode current

    8 mA

    Published datasheet value

  • Anode voltage

    550 V

    Published datasheet value

  • Screen-grid voltage

    550 V

    Published datasheet value

  • Mutual conductance

    6.2 mA/V

    Published datasheet value

  • Mutual conductance

    5 mA/V

    Published datasheet value

  • Mutual conductance

    3.5 mA/V

    Published datasheet value

  • Amplification factor

    40

    Published datasheet value

  • Amplification factor

    18

    Published datasheet value