6HA6

High-transconductance sharp-cutoff pentode designed for wide-band television video-output service. Its fixed-gain broadband characteristics make it a video signal tube rather than a conventional audio power pentode.

Directly heatedCold cathodeCommon cathodeDissimilar

Sections: 1
Base: -
Socket code: B9A
Base pins: 9
Nominal heater: 6.3 V / 710 mA

Description

High-transconductance sharp-cutoff video-output pentode for wide-band television service.

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: 6.3 V
Nominal heater current: 710 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

Pentode

X-ray radiationInterelectrode capacitances

Transconductance: 0.018 S
Max plate voltage: 300 V
Max screen voltage: 250 V
Max plate dissipation: 8 W
Max screen dissipation: 1.5 W

Published ratings/characteristics promoted from supplied source; additional conditions retained in parameter table.

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

1964 RMA EIA

Published operating points and test conditions from this source.

SECTION 1

Pentode

Characteristic

Heater Voltage
6.3 V
Heater Current
710 mA
Application
Wide-band television video amplifier

Other

Plate Voltage Maximum
300 V
Screen Voltage Maximum
250 V
Plate Dissipation Maximum
8 W
Screen Dissipation Maximum
1.5 W
Plate Voltage
150 V
VideoAmplifier
Screen Voltage
100 V
VideoAmplifier
Plate Current
28 mA
VideoAmplifier