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Power - Triode Single (under 10W) ·Triode-Triode

5687

High-perveance medium-mu double triode with independent sections and series/parallel heater operation, intended for general amplifier service and also carrying published pulse ratings.

Directly heatedCold cathodeCommon cathodeDissimilar

Sections: 2
Base: 9H
Socket code: B9A
Base pins: 9
Nominal heater: 12.6 V / 450 mA

Description

High-perveance medium-mu double triode with independent sections and series/parallel heater operation.

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: 9H
Socket code: B9A
Base pins: 9
Nominal heater voltage: 12.6 V
Nominal heater current: 450 mA
Parallel heater voltage: 6.3 V
Parallel heater current: 900 mA
Series capable: Yes

9H - Terminal pinout

Electrical assignments shared by every tube using this base designation.

Terminal	Section	Connection	Evidence
PIN12P	B	P — Plate (Anode) EIA transcription; manufacturer corroboration pending	Unverified EIA Base Connections, printed page 130, 9H
PIN22G1	B	G1 — Control Grid EIA transcription; manufacturer corroboration pending	Unverified EIA Base Connections, printed page 130, 9H
PIN32K	B	K — Cathode EIA transcription; manufacturer corroboration pending	Unverified EIA Base Connections, printed page 130, 9H
PIN4H	—	H — Heater EIA transcription; manufacturer corroboration pending	Unverified EIA Base Connections, printed page 130, 9H
PIN5H	—	H — Heater EIA transcription; manufacturer corroboration pending	Unverified EIA Base Connections, printed page 130, 9H
PIN61K	A	K — Cathode EIA transcription; manufacturer corroboration pending	Unverified EIA Base Connections, printed page 130, 9H
PIN71G1	A	G1 — Control Grid EIA transcription; manufacturer corroboration pending	Unverified EIA Base Connections, printed page 130, 9H
PIN8HCT	—	HCT — Heater Center Tap EIA transcription; manufacturer corroboration pending	Unverified EIA Base Connections, printed page 130, 9H
PIN91P	A	P — Plate (Anode) EIA source label 1P; manufacturer verification pending	Unverified EIA Base Connections, printed page 130, 9H

Section ratings

2 physical sections, each with unique specifications.

Section 1

Triode

X-ray radiationInterelectrode capacitances

Plate resistance: 2000 Ω
Transconductance: 0.0085 S
Amplification factor: 17
Max plate voltage: 330 V
Max plate dissipation: 4.2 W

Representative electrical section for identical repeated sections.

Section 2

Triode

X-ray radiationInterelectrode capacitances

Plate resistance: 2000 Ω
Transconductance: 0.0085 S
Amplification factor: 17
Max plate voltage: 330 V
Max plate dissipation: 4.2 W

Second physical triode restored under current one-row-per-physical-section policy.

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

1958 Compagnie General

Published operating points and test conditions from this source.

SECTION 1

Triode

Other

Heater Voltage Series
12.6 V
Heater Current Series
450 mA
Heater Voltage Parallel
6.3 V
Heater Current Parallel
900 mA
Plate Dissipation per Section
4.2 W
EachSection
Total Plate Dissipation
7.5 W
BothSections

Characteristic

Plate Resistance
2100 ohm
Representative
Transconductance
8250 uS
Representative

Data set 02

195X General Electric Essential Characteristics

Published operating points and test conditions from this source.

SECTION 1

Triode

Capacitance

Input Capacitance
4 pF
Output Capacitance
0.6 pF
Grid-to-Plate Capacitance
4 pF

Characteristic

Plate Voltage
180 V
ClassA;Point1
Grid Voltage
-7 V
ClassA;Point1
Plate Current
21 mA
ClassA;Point1
Plate Resistance
8250 ohm
ClassA;Point1
Transconductance
2100 uS
ClassA;Point1
Amplification Factor
17.5
ClassA;Point1
Plate Voltage
250 V
ClassA;Point2
Grid Voltage
-12.5 V
ClassA;Point2
Plate Current
12.5 mA
ClassA;Point2
Plate Resistance
5500 ohm
ClassA;Point2
Transconductance
3000 uS
ClassA;Point2
Amplification Factor
16.5
ClassA;Point2

Data set 03

1960 RCA Industrial and Communications Types

Published operating points and test conditions from this source.

SECTION 1

Triode

Application

Application
General-purpose amplifier

Data set 04

1961 Tung Sol

Published operating points and test conditions from this source.

SECTION 1

Triode

Other

Heater voltage
12.6 V
Nominal
Heater current
450 mA
Nominal
Plate voltage
120 V
Published operating table; OperatingPoint1
Plate voltage
180 V
Published operating table; OperatingPoint2
Plate voltage
250 V
Published operating table; OperatingPoint3

Characteristic

Plate current
36 mA
Published operating table; OperatingPoint1
Plate current
23 mA
Published operating table; OperatingPoint2
Plate current
12 mA
Published operating table; OperatingPoint3
Transconductance
11 uS
Published operating table; OperatingPoint1
Transconductance
500 uS
Published operating table; OperatingPoint2
Transconductance
8 uS
Published operating table; OperatingPoint3
Transconductance
500 uS
Published operating table; OperatingPoint4

Data set 05

1966 Tung Sol Electronic Tubes 3 of 4

Published operating points and test conditions from this source.

SECTION 1

Triode

Other

Plate voltage
180 V
ClassA;EachSection
Grid voltage
-7 V
ClassA;EachSection
Plate current
23 mA
ClassA;EachSection
Maximum inverse plate voltage
1000 V
Pulse
Total plate dissipation both units
7.5 W
BothSections

Characteristic

Plate resistance
2000 ohm
ClassA;EachSection
Transconductance
8500 uS
ClassA;EachSection
Amplification factor
17
ClassA;EachSection

Capacitance

Grid-to-plate capacitance
4 pF
EachSection
Heater-to-cathode capacitance
7 pF
EachSection
Plate-to-plate capacitance
0.75 pF
BetweenSections

Data set 06

1971 RCA HB3 Binder 3 of 7

Published operating points and test conditions from this source.

SECTION 1

Triode

Other

Maximum plate voltage
- to 330 V
Maximum plate dissipation
- to 4.2 W

Characteristics

Plate resistance
2000 Ω
Transconductance
8500 µS
Amplification factor
17
Plate voltage
120 V
ClassA
Plate voltage
180 V
ClassA
Plate voltage
250 V
ClassA
Grid voltage
-2 V
ClassA
Grid voltage
-7 V
ClassA
Grid voltage
-12.5 V
ClassA
Amplification factor
18
ClassA
Amplification factor
17
ClassA
Amplification factor
16
ClassA
Plate resistance
1560 Ω
ClassA
Plate resistance
2000 Ω
ClassA
Plate resistance
3000 Ω
ClassA
Transconductance
11500 µS
ClassA
Transconductance
8500 µS
ClassA
Transconductance
5400 µS
ClassA
Plate current
36 mA
ClassA
Plate current
23 mA
ClassA
Plate current
12 mA
ClassA

Capacitance

Grid to plate (Each unit)
4 pF
Grid to cathode and heater (Each unit).
4 pF