6PL12

Combination triode and output beam tetrode for television receivers, with an AF/time-base triode and power section usable for audio or field-deflection output.

Directly heatedCold cathodeCommon cathodeDissimilar

Sections: 2
Base: -
Socket code: B9A
Base pins: -
Nominal heater: 6.3 V / 780 mA

Description

Triode output beam tetrode for television receivers, with AF/time-base triode and audio or field-output power section.

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: -
Nominal heater voltage: 6.3 V
Nominal heater current: 780 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

2 physical sections, each with unique specifications.

Section 1

Triode

X-ray radiationInterelectrode capacitances

Transconductance: 0.0025 S
Amplification factor: 70
Max plate voltage: 300 V
Max plate dissipation: 1 W
Max cathode current: 15 mA

Published electrical limits and characteristics promoted from the approved source.

Section 2

Beam Power

X-ray radiationInterelectrode capacitances

Transconductance: 0.0064 S
Amplification factor: 9.5
Max plate voltage: 300 V
Max screen voltage: 300 V
Max plate dissipation: 7 W
Max screen dissipation: 1.8 W
Max cathode current: 50 mA

Published electrical limits and characteristics promoted from the approved source.

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

1973 Mazda Valves Binder 2

Published operating points and test conditions from this source.

SECTION 1

Triode

Other

HeaterVoltageNominal
6.3 V
Nominal
HeaterCurrentNominal
780 mA
Nominal
Maximum Plate Voltage
300 V
Maximum Plate Dissipation
1 W
Maximum Cathode Current
15 mA

Characteristic

Transconductance
2500 µS
Typical
Amplification Factor
70
Typical

SECTION 2

Beam Power

Other

HeaterVoltageNominal
6.3 V
Nominal
HeaterCurrentNominal
780 mA
Nominal
Maximum Plate Voltage
300 V
Maximum Screen Voltage
300 V
Maximum Plate Dissipation
7 W
Maximum Screen Dissipation
1.8 W
Maximum Cathode Current
50 mA
MaximumPositivePeakPlateVoltage
2500 V
Pulse; maximum 800 us

Characteristic

Transconductance
6400 µS
Typical
Amplification Factor
9.5
Typical