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Power - TV Vertical Output ·BeamPower-Triode

6JZ8

Multi-section television tube whose beam-power section is intended for vertical-deflection output, combined with a small-signal section for associated oscillator or amplifier circuitry.

Directly heatedCold cathodeCommon cathodeDissimilar

Sections: 2
Base: E12-70
Socket code: B12C
Base pins: 12
Nominal heater: 6.3 V / 1.2 A

Description

Combined triode and beam-power tube for television vertical-deflection oscillator and amplifier applications. It is an explicit heater variant/co-designation in 24JZ8.pdf.

Socket description

Duodecar 12-contact

General specifications

Tube and section characteristics

Properties common to every published source and operating point.

Heater and base

Base: E12-70
Socket code: B12C
Base pins: 12
Nominal heater voltage: 6.3 V
Nominal heater current: 1.2 A
Parallel heater voltage: -
Parallel heater current: -
Series capable: No

E12-70 - 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

Beam Power

X-ray radiationInterelectrode capacitances

Plate resistance: 11700 Ω
Transconductance: 0.0071 S
Max plate voltage: 250 V
Max screen voltage: 200 V
Max plate dissipation: 7 W
Max screen dissipation: 1.8 W
Max cathode current: 70 mA

Published ratings/characteristics promoted from supplied datasheet.

Section 2

Triode

X-ray radiationInterelectrode capacitances

Plate resistance: 8500 Ω
Transconductance: 0.00235 S
Amplification factor: 20
Max plate voltage: 250 V
Max plate dissipation: 1 W
Max cathode current: 20 mA

Published ratings/characteristics promoted from supplied datasheet.

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

1961 Tung Sol

Published operating points and test conditions from this source.

SECTION 1

Beam Power

Other

PeakPulsePlateVoltage
2000 V
VerticalDeflection
Peak Cathode Current
245 mA
VerticalDeflection
Plate Voltage
120 V
Beam pentode typical operation
Screen Voltage
110 V
Beam pentode typical operation

Characteristic

Plate Current
46 mA
Beam pentode typical operation
Screen Current
3.5 mA
Beam pentode typical operation

SECTION 2

Triode

Other

Plate Voltage
150 V
Triode typical operation

Characteristic

Plate Current
5.5 mA
Triode typical operation

Data set 02

1966 Tung Sol Electronic Tubes 2 of 4

Published operating points and test conditions from this source.

SECTION 1

Beam Power

Other

Peak pulse plate voltage
2000 V
PentodeSection;VerticalDeflection
Peak cathode current
245 mA
PentodeSection;VerticalDeflection
Plate voltage
120 V
PentodeSection;VerticalDeflection
Grid 2 voltage
110 V
PentodeSection;VerticalDeflection
Grid 1 voltage
-8 V
PentodeSection;VerticalDeflection
Plate current
46 mA
PentodeSection;VerticalDeflection
Grid 2 current
3.5 mA
PentodeSection;VerticalDeflection

SECTION 2

Triode

Other

Plate voltage
150 V
TriodeSection;VerticalOscillator
Grid 1 voltage
-5 V
TriodeSection;VerticalOscillator
Plate current
5.5 mA
TriodeSection;VerticalOscillator
Peak cathode current
70 mA
TriodeSection;VerticalOscillator

Data set 03

1968 General Electric Co

Published operating points and test conditions from this source.

SECTION 1

Beam Power

Other

Plate Current
46 mA
Screen Current
3.5 mA

Capacitance

Input Capacitance
2.2 pF

Data set 04

1971 RCA HB3 Binder 5 of 7

Published operating points and test conditions from this source.

SECTION 2

Triode

Other

Voltage (AC or DC)
6.3 V
Published table value column 1
Voltage (AC or DC)
6 V
Published table value column 2
Current at heater volts =
6.3 V
Published table value column 1
Current at heater volts =
1.2 V
Published table value column 2
Heater negative with respect to cathode
200 V
Published table value
Heater positive with respect to cathode
200 V
Published table value
Input: GT to (KT,H)
2.2 pF
Published table value
Output: PT to (KT,H)
0.7 pF
Published table value
Input: G
6 pF
Published table value column 1
Input: G
6 pF
Published table value column 2
Input: G
11 pF
Published table value column 3
Output: PB to (KB+G
8 pF
Published table value column 1
Output: PB to (KB+G
7 pF
Published table value column 2
Plate Voltage
150 V
Published table value column 1
Plate Voltage
45 V
Published table value column 2
Plate Voltage
120 V
Published table value column 3
Grid-No
2 V
Published table value column 1
Grid-No
110 V
Published table value column 2
Grid-No
110 V
Published table value column 3
Grid-No
1 V
Published table value column 1
Grid-No
-5 V
Published table value column 2
Grid-No
0 V
Published table value column 3
Grid-No
-8 V
Published table value column 4
Plate Current
5.5 mA
Published table value column 1
Plate Current
122 mA
Published table value column 2
Plate Current
46 mA
Published table value column 3
Grid-No
2 mA
Published table value column 1
Grid-No
16.5 mA
Published table value column 2
Grid-No
3.5 mA
Published table value column 3
for plate µa=
10 V
Published table value
DC Plate Voltage
250 V
Published table value
Peak Negative Pulse-Grid Voltage
400 V
Published table value
Plate Dissipation
1 W
Published table value
Peak Positive-Pulse Plate Voltage
2000 V
Published table value
Grid No
2 V
Published table value column 1
Grid No
200 V
Published table value column 2
Plate Dissipation d
7 W
Published table value
Grid-No
2 W
Published table value column 1
Grid-No
1 W
Published table value column 2
Grid-No
8 W
Published table value column 3

Characteristics

Plate Resistance (Approx )
8500 Ω
Published table value column 1
Plate Resistance (Approx )
1700 Ω
Published table value column 2

Data set 05

1975 RCA RC30

Published operating points and test conditions from this source.

SECTION 1

Beam Power

Other

Maximum Plate Voltage
250 V
Section2;Promoted
Maximum Screen Voltage
200 V
Section2;Promoted
Maximum Plate Dissipation
7 W
Section2;Promoted
Maximum Screen Dissipation
1.8 W
Section2;Promoted
Maximum Cathode Current
245 mA
Section2;Promoted

Characteristic

Plate Resistance
11700 ohm
Section2;Promoted
Transconductance
7100 uS
Section2;Promoted

SECTION 2

Triode

Other

Heater Warm-up Time
11 s
Other;PublishedValue1
Heater Warm-up Time
11 s
Other;PublishedValue2
Heater Warm-up Time
11 s
Other;PublishedValue3
Peak value t2
0 V
Other;PublishedValue1
Peak value t2
200 V
Other;PublishedValue2
Peak value t2
200 V
Other;PublishedValue3
Peak value t2
200 V
Other;PublishedValue4
Average value
100 V
Other;PublishedValue1
Average value
100 V
Other;PublishedValue2
Average value
100 V
Other;PublishedValue3
Average value
100 V
Other;PublishedValue4
DC Plate Voltage
250 V
MaximumRating;PublishedValue1
DC Plate Voltage
250 V
MaximumRating;PublishedValue2
Peak Positive-Pulse Plate Voltage* —
2000 V
MaximumRating
Peak Negative-Pulse Grid-No.l Voltage
200 V
MaximumRating
Published value
400 V
MaximumRating;PublishedValue1
Published value
150 V
MaximumRating;PublishedValue2
Average Cathode Current
70 mA
MaximumRating;PublishedValue1
Average Cathode Current
245 mA
MaximumRating;PublishedValue2
Plate Dissipation*
20 mA
MaximumRating;PublishedValue1
Plate Dissipation*
70 mA
MaximumRating;PublishedValue2
Published value
1 W
MaximumRating;PublishedValue1
Published value
7 W
MaximumRating;PublishedValue2
Grid-No
2 W
MaximumRating;PublishedValue1
Grid-No
1.8 W
MaximumRating;PublishedValue2
For fixed-bias operation
1 megohm
MaximumCircuitValue;PublishedValue1
For fixed-bias operation
1 megohm
MaximumCircuitValue;PublishedValue2
For cathode-bias operation
2.2 megohm
MaximumCircuitValue;PublishedValue1
For cathode-bias operation
2.2 megohm
MaximumCircuitValue;PublishedValue2
Maximum Plate Voltage
250 V
Section1;Promoted
Maximum Plate Dissipation
1 W
Section1;Promoted
Maximum Cathode Current
70 mA
Section1;Promoted

Characteristic

Plate Voltage
150 V
Characteristic;PublishedValue1
Plate Voltage
45 V
Characteristic;PublishedValue2
Plate Voltage
120 V
Characteristic;PublishedValue3
Grid-No
2 V
Characteristic;PublishedValue1
Grid-No
110 V
Characteristic;PublishedValue2
Grid-No
110 V
Characteristic;PublishedValue3
Grid-No.l (Control-Grid) Voltage
-6 V
Characteristic;PublishedValue1
Grid-No.l (Control-Grid) Voltage
0 V
Characteristic;PublishedValue2
Grid-No.l (Control-Grid) Voltage
-8 V
Characteristic;PublishedValue3
Plate Resistance (Approx.)
8500 ohm
Characteristic;PublishedValue1
Plate Resistance (Approx.)
11700 ohm
Characteristic;PublishedValue2
Transconductance
2350 uS
Characteristic;PublishedValue1
Transconductance
7100 uS
Characteristic;PublishedValue2
Plate Current
5.5 mA
Characteristic;PublishedValue1
Plate Current
122 mA
Characteristic;PublishedValue2
Plate Current
46 mA
Characteristic;PublishedValue3
Grid-No.l Voltage (Approx.)
16.5 mA
Characteristic;PublishedValue1
Grid-No.l Voltage (Approx.)
3.5 mA
Characteristic;PublishedValue2
for plate current
10 V
Characteristic;PublishedValue1
for plate current
-10 V
Characteristic;PublishedValue2