Skip to main content

Voltage Triode Pentode ·Pentode-Triode

6AL9

Combined triode-pentode for television video, IF, AGC, sync, burst, band-pass, or related signal-processing stages.

Directly heatedCold cathodeCommon cathodeDissimilar
Sections
2
Base
-
Socket code
B12C
Base pins
12
Nominal heater
6.3 V / 820 mA

Description

Compactron high-mu triode and sharp-cutoff pentode; triode is general-purpose and pentode is a video amplifier.

Socket description

Duodecar 12-contact

General specifications

Tube and section characteristics

Properties common to every published source and operating point.

Heater and base

Base
-
Socket code
B12C
Base pins
12
Nominal heater voltage
6.3 V
Nominal heater current
820 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
0.0063 S
Amplification factor
59

Published source values promoted where applicable; additional published data retained as parameters.

Section 2

Pentode

X-ray radiationInterelectrode capacitances
Transconductance
0.03 S
Max screen voltage
200 V
Max screen dissipation
1.5 W

Published source values promoted where applicable; additional published data retained as parameters.

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

1950 Sylvania

Published operating points and test conditions from this source.

SECTION 2

Pentode

Application

  • Primary application

    Video amplifier