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5842

Premium-quality high-transconductance triode for demanding small-signal amplification, with published ratings and characteristics emphasizing strong gain and controlled production quality.

Directly heatedCold cathodeCommon cathodeDissimilar

Sections: 1
Base: 9V
Socket code: B9A
Base pins: 9
Nominal heater: 6.3 V / 300 mA

Description

5842 is listed in the supplied Amperex material as a premium-quality high-transconductance triode. Published ratings and characteristics were captured from the supplied table.

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: 9V
Socket code: B9A
Base pins: 9
Nominal heater voltage: 6.3 V
Nominal heater current: 300 mA
Parallel heater voltage: -
Parallel heater current: -
Series capable: No

9V - Terminal pinout

Electrical assignments shared by every tube using this base designation.

Terminal	Section	Connection	Evidence
PIN1P	A	P — Plate (Anode) EIA source designation P; manufacturer verification pending	Unverified EIA Base Connections, printed page 130, 9V
PIN3H	—	H — Heater EIA source designation H; manufacturer verification pending	Unverified EIA Base Connections, printed page 130, 9V
PIN4G1	A	G1 — Control Grid EIA source designation G1; manufacturer verification pending	Unverified EIA Base Connections, printed page 130, 9V
PIN5G1	A	G1 — Control Grid EIA source designation G1; manufacturer verification pending	Unverified EIA Base Connections, printed page 130, 9V
PIN6K	A	K — Cathode EIA source designation K; manufacturer verification pending	Unverified EIA Base Connections, printed page 130, 9V
PIN7G1	A	G1 — Control Grid EIA source designation G1; manufacturer verification pending	Unverified EIA Base Connections, printed page 130, 9V
PIN8G1	A	G1 — Control Grid EIA chart transcription; manufacturer confirmation pending	Unverified EIA Base Connections, printed page 130, 9V
PIN9H	—	H — Heater EIA chart transcription; manufacturer confirmation pending	Unverified EIA Base Connections, printed page 130, 9V

Section ratings

1 physical section, each with unique specifications.

Section 1

Triode

X-ray radiationInterelectrode capacitances

Plate resistance: 1700 Ω
Transconductance: 0.025 S
Amplification factor: 44
Max plate voltage: 200 V
Max plate dissipation: 4.5 W
Max cathode current: 50 mA

Published maximum ratings and characteristic constants promoted; identical twin sections compressed when applicable.

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

1938 Raytheon

Published operating points and test conditions from this source.

SECTION 1

Triode

Other

HeaterVoltageNominal
6.3 V
Nominal
HeaterCurrentNominal
300 mA
Nominal
Maximum Plate Voltage
200 V
Maximum Plate Dissipation
4.5 W
Maximum Cathode Current
50 mA

Characteristic

Transconductance
25000 µS
Typical
Amplification Factor
43
Typical
Plate Resistance
1700 ohm
Typical

Data set 02

1958 Compagnie General

Published operating points and test conditions from this source.

SECTION 1

Triode

Capacitance

Grid-to-plate capacitance
0.65 pF
Maximum
Input capacitance
9 pF
Output capacitance
1.75 pF

Other

Plate voltage
150 V
ClassA
Cathode resistance
60 Ohm
ClassA
Plate current
22 mA
ClassA
Transconductance minimum
20000 uS
Transconductance maximum
30000 uS
Amplification factor minimum
35 ratio
Amplification factor maximum
55 ratio

Characteristics

Noise figure
2.7 dB
Cascode;6-60MHz;SourceResistance=400Ohm

Data set 03

1963 Amperex Condensed

Published operating points and test conditions from this source.

SECTION 1

Triode

Other

Plate voltage
130 V
PremiumQuality
Plate current
27 mA
PremiumQuality

Characteristic

Transconductance
27000 µS
PremiumQuality
Amplification factor
43
PremiumQuality

Data set 04

1965 Ericsson Longlife

Published operating points and test conditions from this source.

SECTION 1

Triode

Other

Plate supply voltage
130 V
ClassA
Grid supply voltage
9 V
ClassA
Cathode bias resistor
360 Ohm
ClassA
Plate current
27 mA
ClassA
Plate supply voltage
150 V
ClassA
Cathode bias resistor
60 Ohm
ClassA
Plate current
25 mA
ClassA
Transconductance minimum
20000 uS
Transconductance maximum
30000 uS

Characteristics

Transconductance
27000 uS
ClassA;Va=130V
Amplification factor
44 ratio
ClassA;Va=130V
Plate resistance
1600 Ohm
ClassA;Va=130V
Transconductance
25000 uS
ClassA;Va=150V
Amplification factor
43 ratio
ClassA;Va=150V
Plate resistance
1700 Ohm
ClassA;Va=150V
Equivalent noise resistance
100 Ohm

Data set 05

196X LM Ericsson

Published operating points and test conditions from this source.

SECTION 1

Triode

Characteristics

Heater voltage
6.3 V
Heater current
300 mA
Plate resistance
1700 ohm
Amplification factor
44

Other

Maximum plate voltage
200 V
Maximum plate dissipation
4.5 W

Data set 06

1971 RCA HB3 Binder 3 of 7

Published operating points and test conditions from this source.

SECTION 1

Triode

Characteristics

Voltage (AC or DC) — published value 1
6.3 V
Published datasheet value; multiple values on a source row represent separate source-table conditions or limits.
Voltage (AC or DC) — published value 2
0.6 V
Published datasheet value; multiple values on a source row represent separate source-table conditions or limits.
Current at heater volts = 6.3 — published value 1
6.3 V
Published datasheet value; multiple values on a source row represent separate source-table conditions or limits.
Current at heater volts = 6.3 — published value 2
0 V
Published datasheet value; multiple values on a source row represent separate source-table conditions or limits.
Current at heater volts = 6.3 — published value 3
300 V
Published datasheet value; multiple values on a source row represent separate source-table conditions or limits.
Plate to cathode and heater
0.55
Published datasheet value; multiple values on a source row represent separate source-table conditions or limits.
Cathode to grid and heater
9
Published datasheet value; multiple values on a source row represent separate source-table conditions or limits.
Plate to grid and
1.8
Published datasheet value; multiple values on a source row represent separate source-table conditions or limits.
Plate Supply Voltage — published value 1
130 V
Published datasheet value; multiple values on a source row represent separate source-table conditions or limits.
Plate Supply Voltage — published value 2
150 V
Published datasheet value; multiple values on a source row represent separate source-table conditions or limits.
Grid Voltageb
9 V
Published datasheet value; multiple values on a source row represent separate source-table conditions or limits.
Amplification Factor — published value 1
43 A
Published datasheet value; multiple values on a source row represent separate source-table conditions or limits.
Amplification Factor — published value 2
43 A
Published datasheet value; multiple values on a source row represent separate source-table conditions or limits.
Plate Resistance (Approx ) — published value 1
1600 ohm
Published datasheet value; multiple values on a source row represent separate source-table conditions or limits.
Plate Resistance (Approx ) — published value 2
1700 ohm
Published datasheet value; multiple values on a source row represent separate source-table conditions or limits.
Transconductance — published value 1
27000
Published datasheet value; multiple values on a source row represent separate source-table conditions or limits.
Transconductance — published value 2
25000
Published datasheet value; multiple values on a source row represent separate source-table conditions or limits.
Plate Current — published value 1
27 mA
Published datasheet value; multiple values on a source row represent separate source-table conditions or limits.
Plate Current — published value 2
25 mA
Published datasheet value; multiple values on a source row represent separate source-table conditions or limits.
Pin 1 -Plate — published value 1
1
Published datasheet value; multiple values on a source row represent separate source-table conditions or limits.
Pin 1 -Plate — published value 2
5
Published datasheet value; multiple values on a source row represent separate source-table conditions or limits.
Connection
7
Published datasheet value; multiple values on a source row represent separate source-table conditions or limits.
Pin 3-Heater — published value 1
3
Published datasheet value; multiple values on a source row represent separate source-table conditions or limits.
Pin 3-Heater — published value 2
8
Published datasheet value; multiple values on a source row represent separate source-table conditions or limits.
Pin 4 -Grid — published value 1
4
Published datasheet value; multiple values on a source row represent separate source-table conditions or limits.
Pin 4 -Grid — published value 2
9
Published datasheet value; multiple values on a source row represent separate source-table conditions or limits.

Other

PLATE VOLTAGE
200 V
Published datasheet value; multiple values on a source row represent separate source-table conditions or limits.
CATHODE CURRENT
38 mA
Published datasheet value; multiple values on a source row represent separate source-table conditions or limits.
PLATE DISSIPATION — published value 1
4 mA
Published datasheet value; multiple values on a source row represent separate source-table conditions or limits.
PLATE DISSIPATION — published value 2
5 mA
Published datasheet value; multiple values on a source row represent separate source-table conditions or limits.

Data set 07

1999 Philips 0-D

Published operating points and test conditions from this source.

SECTION 1

Triode

Characteristics

Heater voltage
6.3 V
Heater current
300 mA
Plate voltage
150 V
Plate current
26 mA
Transconductance
24000 uS
Amplification factor
50
Plate resistance
2083 ohm

Capacitance

Plate-cathode capacitance
0.55 pF
Grid-cathode capacitance
9 pF
Plate-grid capacitance
1.8 pF