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Voltage - Triode (with diode, heptode or hexode) ·Diode-Diode-Diode-Triode

PABC80

Triple-diode triode for television and radio signal detection followed by audio amplification. Three diodes accommodate video, FM, and AM detector functions while the triode provides recovered-signal voltage gain.

Directly heatedCold cathodeCommon cathodeDissimilar
Sections
4
Base
-
Socket code
B9A
Base pins
9
Nominal heater
9.5 V / 300 mA

Description

Triple-diode triode with a 300 mA heater; this supplied sheet explicitly refers to UABC80 for ratings, characteristics, and operating conditions.

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
-
Socket code
B9A
Base pins
9
Nominal heater voltage
9.5 V
Nominal heater current
300 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

4 physical sections, each with unique specifications.

Section 1

Triode

X-ray radiationInterelectrode capacitances
Max plate voltage
300 V
Max plate dissipation
1 W

Published section ratings and characteristics promoted where applicable.

Section 2

Diode

X-ray radiationInterelectrode capacitances
Max plate voltage
250 V
Rectifier peak inverse voltage
350 V
Rectifier nominal output current
10 mA
Rectifier peak forward current
75 mA

Published section ratings and characteristics promoted where applicable.

Section 3

Diode

X-ray radiationInterelectrode capacitances

No fixed ratings are recorded for this section.

Published section ratings and characteristics promoted where applicable.

Section 4

Diode

X-ray radiationInterelectrode capacitances

No fixed ratings are recorded for this section.

Physical diode section added during approved section-structure reconciliation.

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 RFT Rundfunk Technik

Published operating points and test conditions from this source.

SECTION 1

Triode

Other

  • HeaterVoltageNominal

    6.3 V

    Nominal

  • HeaterCurrentNominal

    450 mA

    Nominal

  • Maximum Plate Voltage

    300 V

  • Maximum Plate Dissipation

    1 W

SECTION 2

Diode

Characteristics

  • Heater voltage

    9.5 V

    Published nominal value

  • Heater current

    300 mA

    Published nominal value

  • Transconductance

    1500 µS

    Published operating characteristic

Data set 02

195X Tesla

Published operating points and test conditions from this source.

SECTION 1

Triode

Characteristics

  • Heater voltage

    9.5 V

    Published nominal value

  • Heater current

    300 mA

    Published nominal value

  • Warm-up time

    16 s

    Published value

Data set 03

1967 Mullard Receiving Tubes for Maintenance

Published operating points and test conditions from this source.

SECTION 1

Triode

Other

  • Triple diode triode with

    300 mA

    Published in approved PABC80.pdf target datasheet; Section1

  • Ih

    300 mA

    Published in approved PABC80.pdf target datasheet; Section1

SECTION 2

Diode

Other

  • Triple diode triode with

    300 mA

    Published in approved PABC80.pdf target datasheet; Section2

  • Ih

    300 mA

    Published in approved PABC80.pdf target datasheet; Section2

Data set 04

1972 Philips Receiving Tubes

Published operating points and test conditions from this source.

SECTION 1

Triode

Application

  • Application

    AFAmplifier text

SECTION 2

Diode

Application

  • Application

    Video_FM_AM_Detector text

Data set 05

1999 Philips E-Z

Published operating points and test conditions from this source.

SECTION 1

Triode

Characteristic

  • Heater current

    300 mA

    Heater current If 300 mA

  • Heater voltage

    9.5 V

    Heater voltage Vi 9.5 V