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Voltage - Dual Triode (similar) ·Triode-Triode

PCC84

300 mA series-heater dual triode designed for cascode RF amplification in television receiver front ends, corresponding functionally to the ECC84 family.

Directly heatedCold cathodeCommon cathodeDissimilar
Sections
2
Base
Noval
Socket code
B9A
Base pins
9
Nominal heater
7.2 V / 300 mA

Description

300 mA series-heater dual triode for cascode RF amplification; the source refers to ECC84 for remaining characteristics.

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
7.2 V
Nominal heater current
300 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
4000 Ω
Transconductance
0.006 S
Amplification factor
24
Max plate voltage
180 V
Max plate dissipation
2 W
Max cathode current
22 mA

Published section ratings and characteristics promoted where applicable.

Section 2

Triode

X-ray radiationInterelectrode capacitances
Plate resistance
4000 Ω
Transconductance
0.006 S
Amplification factor
24
Max plate voltage
180 V
Max plate dissipation
2 W
Max cathode current
22 mA

Second physical triode section; added to align rows with SectionCount.

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 La Radiotechnique

Published operating points and test conditions from this source.

SECTION 1

Triode

Characteristic

  • Indirect (cathodes isolees du filament)

    3 A

    Triode

  • Alimentation du filament en serie. Vvf

    7 V

    Triode

Other

  • Plate voltage

    90 V

    Triode

  • Tension de la grille

    15 V

    Triode

  • Plate current

    12 mA

    Triode

  • Plate resistance

    4 kohm

    Triode

  • Transconductance

    6 mA/V

    Triode

  • Plate voltage

    180 V

    Triode

  • Puissance dissipee surl'anode

    2 W

    Triode

  • Cathode current

    22 mA

    Triode

  • Grid-circuit resistance G

    0.5 MA

    Triode

  • Grid-circuit resistance G'

    5 Mohm

    Triode

  • (cathode positive par rapport au filament) Vk'f

    250 V

    Triode

  • (cathode negative par rapportaufilament) Vk'f

    100 V

    Triode

  • Heater-cathode voltage K

    100 V

    Triode

  • {1) La composante continue ne doit pas depasser 180 V

    180 V

    Triode

Capacitance

  • Capacite de la grille

    21 pF

    Triode

  • Plate capacitance

    0.45 pF

    Triode

  • Capacite anode-grille

    12 pF

    Triode

  • Capacite anode-cathode

    16 pF

    Triode

  • Capacite cathode-(grille+filament). Ck'(gJ'Hf)

    47 pF

    Triode

  • Capacite anode-(grille+filament)

    25 pF

    Triode

  • Cathode-heater capacitance

    2.7 pF

    Triode

  • Capacite anode-grille

    2.3 pF

    Triode

  • + filament + grille G'

    12 pF

    Triode

  • Capacite anode A-anode A

    0.035 pF

    Triode

  • Capacite grille G-anode A

    0.006 pF

    Triode

Data set 02

1953 RFT Rundfunk Technik

Published operating points and test conditions from this source.

SECTION 1

Triode

Other

  • HeaterVoltageNominal

    6.3 V

    Nominal

  • HeaterCurrentNominal

    340 mA

    Nominal

  • Maximum Plate Voltage

    180 V

  • Maximum Plate Dissipation

    2 W

  • Maximum Cathode Current

    20 mA

Characteristic

  • Transconductance

    6000 µS

    Typical

  • Amplification Factor

    24

    Typical

  • Plate Resistance

    4000 ohm

    Typical

Data set 03

1958 Brimar Radio Valve No 7

Published operating points and test conditions from this source.

SECTION 1

Triode

Characteristic

  • Application

    VHF cascode amplifier

    Two identical triodes

  • Referenced Characteristics

    Type ECC84

    Source explicitly refers to ECC84 for further characteristics

Data set 04

1958 Mullard Receiving Tubes

Published operating points and test conditions from this source.

SECTION 1

Triode

Characteristics

  • Maximum Intended Frequency

    220 MHz

  • Plate Voltage

    90 V

    Each section

  • Plate Current

    12 mA

    Each section

  • Grid Voltage

    -1.5 V

    Each section

Data set 05

195X Tesla

Published operating points and test conditions from this source.

SECTION 1

Triode

Characteristics

  • Heater voltage

    7.2 V

    Published nominal value

  • Heater current

    300 mA

    Published nominal value

Data set 06

1961 Ferranti Technical Handbook

Published operating points and test conditions from this source.

SECTION 1

Triode

Characteristics

  • Heater Voltage

    7 V

  • Heater Current

    300 mA

  • Maximum Intended Frequency

    220 MHz

    CascodeRFAmplifier

Data set 07

1963 Philips Electron Tubes Handbook V1

Published operating points and test conditions from this source.

SECTION 1

Triode

Other

  • Plate voltage

    90 V

    Cascode;EachSection

  • Control-grid voltage

    -1.5 V

    Cascode;EachSection

  • Plate current

    12 mA

    Cascode;EachSection

Characteristic

  • Transconductance

    6000 µS

    EachSection

  • Amplification factor

    24

    EachSection

  • Input conductance at 200 MHz

    250 µA/V

    Cascode

  • Noise figure

    6.5

    Cascode;InputBandwidth7To8MHz

Capacitance

  • Grid-to-plate capacitance

    1.2 pF

    GroundedCathodeSection

  • Grid capacitance

    2.1 pF

    GroundedCathodeSection

  • Plate capacitance

    0.45 pF

    GroundedCathodeSection

Data set 08

1968 Mazda Belvu

Published operating points and test conditions from this source.

SECTION 1

Triode

Characteristics

  • Heater or filament voltage

    7 V

    Published nominal or stated operating value

  • Heater or filament current

    300 mA

    Published nominal or stated operating value

  • Transconductance

    6000 µS

    Published/reference characteristic

Other

  • Maximum plate dissipation

    2 W

    Published/reference maximum rating

Data set 09

1973 Mazda Valves Binder 2

Published operating points and test conditions from this source.

SECTION 1

Triode

Characteristics

  • Heater voltage

    7 V

    Published nominal value

  • Heater current

    300 mA

    Published nominal value

  • Transconductance

    6000 µS

    Published operating characteristic

Other

  • Maximum plate dissipation

    2 W

    Published maximum rating

Data set 10

1999 Philips E-Z

Published operating points and test conditions from this source.

SECTION 1

Triode

Characteristic

  • up to

    220 MHz

  • Heizung : indirekt durch Wechsel- Ir

    300 mA

  • Caal

    < 0.035 pF

  • Cear

    < 0.006 pF

  • Fernsehempfédngern bis zu

    220 MHz

  • Cau’

    < 0.035 pF

  • Cgav

    < 0.006 pF

  • Kenndaten (jedes System vy

    0 V

  • Vg

    -1.57 V

  • I,

    12 mA

  • Input conductance at

    200 MHz

  • Conductance d'entrée &

    200 MHz

  • Eingangsleitwert bei

    200 MHz

  • (largeur de bande du circuit d'entrée 7

    -8 MHz

  • (Bandbreite der Eingangsschaltung 7

    -8 MHz

  • to about

    700 µA

  • Vg

    1.5 V

  • Eingangsleitwert %bei

    200 MHz

  • (bandwidth of input ecircuit 7

    -8 MHz

Capacitance

  • Cag [1]

    1.2 pF

  • Cag [2]

    0.16 pF

  • Cg [1]

    2.3 pF

  • Cg [2]

    4.7 pF

  • Ca [1]

    0.45 pF

  • Ca [2]

    2.5 pF

  • Caf [1]

    < 0.25 pF

  • Caf [2]

    2.7 pF

  • Ca(x+frgr)

    192 pF

  • Cq [1]

    2.1 pF

  • Cq [2]

    4.7 pF

  • Cgr [1]

    < 0.25 pF

  • Cgr [2]

    2.7 pF

  • Carg?

    2.3 pF

  • Ca(k+f+g')

    112 pF

Other

  • cay +

    180 V

  • CAY +1B

    0 V