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Voltage - Dual Triode (similar) ·Triode-Triode

PCC85

RF dual triode designed for television tuner oscillator and mixer service to approximately 200 MHz, integrating local oscillation and frequency conversion.

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

Description

RF dual triode for television oscillator and mixer service up to about 200 MHz.

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

B9A - 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
15000 Ω
Transconductance
0.0067 S
Amplification factor
48
Max plate voltage
550 V
Max plate dissipation
2.5 W
Max cathode current
15 mA

Published section ratings and characteristics promoted where applicable.

Section 2

Triode

X-ray radiationInterelectrode capacitances

No fixed ratings are recorded for this section.

Published section ratings and characteristics promoted where applicable.

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

195X Tesla

Published operating points and test conditions from this source.

SECTION 1

Triode

Characteristics

  • Heater voltage

    9 V

    Published nominal value

  • Heater current

    300 mA

    Published nominal value

Data set 02

1961 Ferranti Technical Handbook

Published operating points and test conditions from this source.

SECTION 1

Triode

Characteristics

  • Heater Voltage

    9 V

  • Heater Current

    300 mA

Data set 03

1963 Philips Electron Tubes Handbook V1

Published operating points and test conditions from this source.

SECTION 1

Triode

Other

  • Plate voltage

    100 V

    OscillatorMixer;EachSection

  • Control-grid voltage

    -1.1 V

    OscillatorMixer;EachSection

  • Plate current

    4.5 mA

    OscillatorMixer;EachSection

  • Plate voltage

    170 V

    OscillatorMixer;EachSection

  • Control-grid voltage

    -1.5 V

    OscillatorMixer;EachSection

  • Plate current

    10 mA

    OscillatorMixer;EachSection

  • Oscillator supply voltage

    180 V

    Oscillator

  • Oscillator output voltage

    9 V RMS

    Oscillator

Characteristic

  • Transconductance

    4600 µS

    100VPlate

  • Amplification factor

    50

    100VPlate

  • Transconductance

    6200 µS

    170VPlate

  • Amplification factor

    50

    170VPlate

Capacitance

  • Grid-to-plate capacitance

    1.5 pF

    EachSection

Data set 04

1967 Mullard Receiving and Amplifying Valves

Published operating points and test conditions from this source.

SECTION 1

Triode

Characteristic

  • Heater voltage

    9 V

    SeriesHeater

  • Heater current

    300 mA

    SeriesHeater

Data set 05

1972 Philips Receiving Tubes

Published operating points and test conditions from this source.

SECTION 1

Triode

Application

  • Application

    TelevisionRF text

Data set 06

1973 Mazda Valves Binder 2

Published operating points and test conditions from this source.

SECTION 1

Triode

Characteristics

  • Heater voltage

    9 V

    Published nominal value

  • Heater current

    300 mA

    Published nominal value

Other

  • Maximum plate dissipation

    2.5 W

    Published maximum rating

Data set 07

1999 Philips E-Z

Published operating points and test conditions from this source.

SECTION 1

Triode

Characteristic

  • Anode current I,

    10 mA

  • Transconductance S

    6.7 mA/V

  • Heater current If

    300 mA

  • Anode to anode other unit Caa' max

    0.04 pF

  • Anode to anode other unit Caa’ max

    0.008 pF

  • Grid to grid other unit Cgg* max

    0.003 pF

  • Anode to grid other unit Cag' max

    0.008 pF

  • Anode to grid othe? unit Ca'g max

    0.008 pF

  • Anode to cathode other unit Cak’ max

    0.008 pF

  • Anode to cathode other unit Cak max

    0.008 pF

  • Grid to cathode other unit Cgk’ max

    0.003 pF

  • Grid to cathode other unit Cg'k max

    0.003 pF

  • Grid voltage Vg -1.2) -1.75

    -2.4 V

  • Anode current I, 4.5 10

    10 mA

  • Transconductance S 4.8 6.7

    6 mA/V

  • applications in which the input voltage Vi =2 5 mV for an output of

    50 mW

  • 50 mV for an output

    5 W

  • with a bias of

    -1.5 V

  • Grid input resistance (f [1]

    100 MHz

  • Grid input resistance (f [2]

    15 kΩ

  • Anode supply voltage Vi,

    180 V

  • Grid resistor Rg

    22 kΩ

  • Anode current Iy

    7.4 mA

  • Anode dissipation Wa

    1.2 W

  • Vo

    200 mA/V

Capacitance

  • Anode to grid Cag

    1.5 pF

  • Anode to cathode Cak

    0.18 pF

  • Anode to cathode + heater + screen Ca/kfs

    1.2 pF

  • Grid to cathode + heater + screen Cg/Kkfs

    3.1 pF

  • Anode to cathode + heater + screen Ca/kfs

    1.8 pF

Other

  • Anode supply voltage Vb 106 170

    200 V

  • Anode resistor R, 4.7 4.7

    8.2 kΩ

  • Anode current L 2.7 5.5

    6 mA

  • Conversion conductance Sc 2.2 2.8

    2.9 mA/V

  • Anode voltage Va10 max

    550 V

  • Va max

    250 V

  • Anode dissipation W, max

    2.5 W

  • Anode dissipation, total WasWyr max

    4.5 W

  • Cathode current I max

    15 mA

  • Cathode to heater voltage Vit max

    90 V

  • Grid voltage , negative -V max

    100 V