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Power - TV Vertical Output ·BeamPower-Triode

17JZ8

Combination triode and beam-power tube designed for television vertical-deflection oscillator and amplifier applications, with a 12-watt beam section and substantial pulse ratings.

Directly heatedCold cathodeCommon cathodeDissimilar

Sections: 2
Base: 12OZ
Socket code: B9A
Base pins: 12
Nominal heater: 16.8 V / 450 mA

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

Small-button Noval 9-contact

General specifications

Tube and section characteristics

Properties common to every published source and operating point.

Heater and base

Base: 12OZ
Socket code: B9A
Base pins: 12
Nominal heater voltage: 16.8 V
Nominal heater current: 450 mA
Parallel heater voltage: -
Parallel heater current: -
Series capable: No

12OZ - 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: 5000 Ω
Transconductance: 0.0085 S
Amplification factor: 40
Max plate voltage: 330 V
Max plate dissipation: 2.5 W
Max cathode current: 25 mA

Reference/equivalence-only source does not reproduce the referenced electrical ratings/characteristics; promoted values intentionally not inferred from external datasheets.

Section 2

Beam Power

X-ray radiationInterelectrode capacitances

Plate resistance: 25000 Ω
Transconductance: 0.0065 S
Max plate voltage: 330 V
Max screen voltage: 250 V
Max plate dissipation: 12 W
Max screen dissipation: 2.5 W
Max cathode current: 80 mA

Reference/equivalence-only source does not reproduce the referenced electrical ratings/characteristics; promoted values intentionally not inferred from external datasheets.

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

1966 Tung Sol Electronic Tubes 3 of 4

Published operating points and test conditions from this source.

SECTION 1

Triode

Other

GRID
1 pF
Published datasheet; section table
INPUT: G
11 pF
Published datasheet
OUTPUT: PTO(H+K+G
7 pF
Published datasheet
GRID TO PLATE (G TO P )
3.6 pF
Published datasheet
INPUT: G TO (H + K )
2.2 pF
Published datasheet
OUTPUT: P TO (H + K )
0.7 pF
Published datasheet
DESIGN MAXIMUM VALUE •SEE EIA STANDARD RS•
239 mA
Published datasheet
AVERAGE CHARACTERISTICS
450 mA
Published datasheet
DC COMPONENT
100 V
Published datasheet
TOTAL DC AND PEAK
200 V
Published datasheet
TOTAL DC AND PEAK
200 V
Published datasheet
DESIGN MAXIMUM RATINGS •SEE EIA STANDARD RS•
239 mA
Published datasheet
GRID
2 V
Published datasheet; section table
PEAK NEGATIVE GRID
1 V
Published datasheet; section table
PLATE DISSIPATION
1 W
Published datasheet; section table
GRID
2 W
Published datasheet; section table
WITH CATHODE elAS
2 ohm
Published datasheet
GRID
2 V
Published datasheet; section table
GRID
1 V
Published datasheet; section table
GRID
2 mA
Published datasheet; section table
GRID
1 V
Published datasheet; section table
APPLIED FOR SHORT INTERVAL (
1 s
Published datasheet

Characteristics

LIMITS OF SUPPLIED CURRENT
450 mA
Published datasheet; section table
PLATE VOLTAGE - DC
250 V
Published datasheet; section table
PEAK PULSE PLATE VOLTAGE
2 V
Published datasheet
CATHODE CURRENT - DC
20 mA
Published datasheet; section table
PEAK CATHODE CURRENT
70 mA
Published datasheet; section table
PLATE VOLTAGE
150 V
Published datasheet; section table
PLATE CURRENT
5.5 mA
Published datasheet; section table
AMPLIFICATION FACTOR
20 A
Published datasheet
TRANSCONDUCTANCE
2.35 µS
Published datasheet; section table
PLATE RESISTANCE - APPROX
8.5 ohm
Published datasheet; section table

SECTION 2

Beam Power

Other

GRID
0.34 pF
Published datasheet; section table
GRID
200 V
Published datasheet; section table
PEAK NEGATIVE GRID
400 V
Published datasheet; section table
PLATE DISSIPATION
7 W
Published datasheet; section table
GRID
1.8 W
Published datasheet; section table
GRID
110 V
Published datasheet; section table
GRID
-5 V
Published datasheet; section table
GRID
16.5 mA
Published datasheet; section table
GRID
16 V
Published datasheet; section table

Characteristics

LIMITS OF SUPPLIED CURRENT
30 mA
Published datasheet; section table
PLATE VOLTAGE - DC
250 V
Published datasheet; section table
CATHODE CURRENT - DC
70 mA
Published datasheet; section table
PEAK CATHODE CURRENT
245 mA
Published datasheet; section table
PLATE VOLTAGE
45 V
Published datasheet; section table
PLATE CURRENT
122 mA
Published datasheet; section table
TRANSCONDUCTANCE
7.1 µS
Published datasheet; section table
PLATE RESISTANCE - APPROX
11.7 ohm
Published datasheet; section table

Data set 02

1968 General Electric Co

Published operating points and test conditions from this source.

SECTION 1

Triode

Other

Heater Warmup Time
11 s

Data set 03

1971 RCA HB3 Binder 5 of 7

Published operating points and test conditions from this source.

SECTION 1

Triode

Other

Heater voltage
16.8 V
Heater current
450 mA
Heater warm-up time
11 s
ControlledWarmup
Plate voltage
150 V
Triode;ClassA
Plate current
18 mA
Triode;ClassA

Characteristic

Plate resistance
5000 ohm
Triode
Transconductance
8500 uS
Triode
Amplification factor
40
Triode

Capacitance

Grid-to-plate capacitance
1.8 pF
Triode

SECTION 2

Beam Power

Other

Plate voltage
250 V
BeamPower;ClassA
Screen voltage
250 V
BeamPower;ClassA
Plate current
50 mA
BeamPower;ClassA
Plate dissipation
12 W
BeamPower
Screen dissipation
2.5 W
BeamPower

Characteristic

Transconductance
6500 uS
BeamPower

Capacitance

Grid-to-plate capacitance
0.4 pF
BeamPower

Data set 04

1975 RCA RC30

Published operating points and test conditions from this source.

SECTION 1

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
Plate Resistance
8500 ohm
Section1;Promoted
Transconductance
2350 uS
Section1;Promoted
Amplification Factor
20
Section1;Promoted

SECTION 2

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