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Power - TV Vertical Output ·BeamPower-Triode-Triode

6AK9

Multifunction Compactron containing two dissimilar triodes and a beam pentode for television sync clipping, vertical oscillation, and vertical-deflection amplification.

Directly heatedCold cathodeCommon cathodeDissimilar

Sections: 3
Base: E12-74
Socket code: B9A
Base pins: 12
Nominal heater: 6.3 V / 1.6 A

Description

The 6AK9 is a multifunction Compactron containing two dissimilar triodes and a beam pentode; the pentode is for vertical-deflection amplification, one triode for vertical oscillation, and one for sync clipping.

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: E12-74
Socket code: B9A
Base pins: 12
Nominal heater voltage: 6.3 V
Nominal heater current: 1.6 A
Parallel heater voltage: -
Parallel heater current: -
Series capable: No

E12-74 - Terminal pinout

Electrical assignments shared by every tube using this base designation.

No verified pinout is recorded for this base designation.

Section ratings

3 physical sections, each with unique specifications.

Section 1

Triode

X-ray radiationInterelectrode capacitances

Plate resistance: 11000 Ω
Transconductance: 0.0039 S
Amplification factor: 43
Max plate voltage: 330 V
Max plate dissipation: 1.25 W

Triode section 1; sync-clipper service.

Section 2

Triode

X-ray radiationInterelectrode capacitances

Plate resistance: 8500 Ω
Transconductance: 0.00235 S
Amplification factor: 20
Max plate voltage: 330 V
Max plate dissipation: 1 W
Rectifier peak inverse voltage: 0.02 V

Triode section 2; vertical oscillator service.

Section 3

Beam Power

X-ray radiationInterelectrode capacitances

Plate resistance: 16400 Ω
Transconductance: 0.0062 S
Max plate voltage: 350 V
Max screen voltage: 250 V
Max plate dissipation: 10 W
Max screen dissipation: 2 W
Max cathode current: 80 mA

Beam pentode section; vertical-deflection amplifier service. Peak pulse plate voltage 2500 V retained as parameter.

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

1968 General Electric Co

Published operating points and test conditions from this source.

SECTION 1

Triode

Other

HeaterOrFilamentVoltageNominal
6.3 V
HeaterOrFilamentCurrentNominal
1.6 A
Maximum Plate Voltage
330 V
Maximum Plate Dissipation
1.25 W

Characteristic

Plate Resistance
11000 Ohm
Transconductance
3900 uS
Amplification Factor
43

SECTION 2

Triode

Characteristic

Plate Resistance
8500 Ohm
Transconductance
2350 uS
Amplification Factor
20

Other

Maximum Plate Voltage
330 V
Maximum Plate Dissipation
1 W
Maximum Peak Inverse Voltage
0.02 V
Peak Plate Current
70 mA
VerticalOscillator

SECTION 3

Beam Power

Characteristic

Plate Resistance
16400 Ohm
Transconductance
6200 uS

Other

Maximum Plate Voltage
350 V
Maximum Screen Voltage
250 V
Maximum Plate Dissipation
10 W
Maximum Screen Dissipation
2 W
Maximum Cathode Current
80 mA
MaximumPeakPulsePlateVoltage
2500 V
VerticalDeflection
TotalPeakPlateAndScreenCurrent
245 mA
VerticalDeflection