6BN7

Dual triode intended for television vertical-deflection service, combining oscillator/driver and power-output functions where applicable. Manufacturer data emphasize vertical-sweep operation, pulse-voltage capability, and the stronger section’s current and dissipation requirements.

Directly heatedCold cathodeCommon cathodeDissimilar

Sections: 2
Base: 6BN7
Socket code: B9A
Base pins: 9
Nominal heater: 6.3 V / 750 mA

Description

Two electrically dissimilar triodes designed as a combined vertical oscillator and vertical deflection amplifier in television receivers.

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: 6BN7
Socket code: B9A
Base pins: 9
Nominal heater voltage: 6.3 V
Nominal heater current: 750 mA
Parallel heater voltage: -
Parallel heater current: -
Series capable: No

6BN7 - 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

Plate resistance: 14000 Ω
Transconductance: 0.002 S
Amplification factor: 28
Max plate voltage: 400 V
Max plate dissipation: 1.5 W

Section #2: oscillator/discharge section.

Section 2

Triode

X-ray radiationInterelectrode capacitances

Plate resistance: 2200 Ω
Transconductance: 0.0054 S
Amplification factor: 12
Max plate voltage: 400 V
Max plate dissipation: 7.5 W

Section #1: vertical amplifier/output section.

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

195X General Electric Essential Characteristics

Published operating points and test conditions from this source.

SECTION 1

Triode

Other

Plate voltage
250 V
Section1 VerticalDeflection
Control-grid voltage
-15 V
Section1 VerticalDeflection
Positive pulse plate voltage maximum
1500 V
Section1 VerticalDeflection
Plate dissipation maximum
7.5 W
Section1 VerticalDeflection

SECTION 2

Triode

Other

Plate voltage
120 V
Section2 ClassA
Control-grid voltage
-10 V
Section2 ClassA
Plate current
5 mA
Section2 ClassA

Characteristic

Plate resistance
14000 Ω
Section2 ClassA
Transconductance
2000 µS
Section2 ClassA
Amplification factor
28
Section2 ClassA

Data set 02

1961 Tung Sol

Published operating points and test conditions from this source.

SECTION 1

Triode

Other

Plate Voltage
120 V
ClassA;Section2

SECTION 2

Triode

Other

Plate Voltage
250 V
ClassA;Section1
Peak Positive Pulse Plate Voltage
1500 V
Section1