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Voltage - Triode (single) ·Triode

CC2

All-current indirectly heated triode electrically corresponding to the AC2 family, intended for general amplifier service.

Directly heatedCold cathodeCommon cathodeDissimilar
Sections
1
Base
-
Socket code
P8A
Base pins
8
Nominal heater
13 V / 200 mA

Description

All-current indirectly heated triode, electrically corresponding to the AC2 family for general amplifier service.

Socket description

European 8-pin side-contact base

General specifications

Tube and section characteristics

Properties common to every published source and operating point.

Heater and base

Base
-
Socket code
P8A
Base pins
8
Nominal heater voltage
13 V
Nominal heater current
200 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

1 physical section, each with unique specifications.

Section 1

Triode

X-ray radiationInterelectrode capacitances
Plate resistance
12000 Ω
Transconductance
0.0025 S
Amplification factor
30
Max plate voltage
550 V
Max plate dissipation
2 W
Max cathode current
10 mA

General-purpose triode; promoted values from nominal and apparatus-builder data.

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

1938 Philips Miniwatt Vacuum Tube Catalog

Published operating points and test conditions from this source.

SECTION 1

Triode

Other

  • Plate voltage

    200 V

    Published table operating point

  • Plate current

    6 mA

    Published table operating point

  • Control-grid bias

    1.5 V

    Published table operating point

  • Alternate plate voltage

    100 V

    OperatingPoint2

  • Alternate plate current

    2 mA

    OperatingPoint2

  • Alternate control-grid bias

    1.5 V

    OperatingPoint2

Characteristic

  • Transconductance

    2500000 µS

    Published table characteristic

  • Amplification factor

    30

    Published table characteristic

  • Plate resistance

    12000 ohm

    Published table characteristic

  • Heater/filament voltage

    13 V

    Published heater/filament rating

  • Heater/filament current

    200 mA

    Published heater/filament rating

  • Alternate transconductance

    1800 µS

    OperatingPoint2

  • Alternate amplification factor

    30

    OperatingPoint2

  • Alternate plate resistance

    16000 ohm

    OperatingPoint2

Capacitance

  • Grid-to-plate capacitance

    1.7 pF

    Published table capacitance

Data set 02

195X Tunsgram

Published operating points and test conditions from this source.

SECTION 1

Triode

Other

  • Typical plate voltage

    250 V

  • Typical plate current

    6 mA

  • Typical grid voltage

    -5.5 V

  • Maximum no-current anode voltage

    550 V

  • Maximum heater-cathode voltage

    125 V

Data set 03

1999 Philips 0-D

Published operating points and test conditions from this source.

SECTION 1

Triode

Other

  • Typical plate current

    6 mA

    Va=200V

  • Grid bias

    -4 V

    Va=200V