Data set 01
1968 General Electric Co
Published operating points and test conditions from this source.
SECTION 1
Triode
Characteristic
Heater Warm-up Time
11 s
Average
Power - TV Vertical Output ·BeamPower-Triode
24JZ8
Combination triode and beam-power tube designed for television vertical-deflection oscillator and amplifier applications, with high pulse-voltage capability.
Directly heatedCold cathodeCommon cathodeDissimilar
- Sections
- 2
- Base
- 12OZ
- Socket code
- B12C
- Base pins
- 12
- Nominal heater
- 26.2 V / 315 mA
Description
Combined triode and beam-power tube for television vertical-deflection oscillator and amplifier applications.
Socket description
Duodecar 12-contact
General specifications
Tube and section characteristics
Properties common to every published source and operating point.
Heater and base
- Base
- 12OZ
- Socket code
- B12C
- Base pins
- 12
- Nominal heater voltage
- 26.2 V
- Nominal heater current
- 315 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
- 8500 Ω
- Transconductance
- 0.00235 S
- Amplification factor
- 20
- Max plate voltage
- 250 V
- Max plate dissipation
- 1 W
- Max cathode current
- 70 mA
Reference/equivalence-only sparse-source exception; medium-mu triode ratings/characteristics not reproduced.
Section 2
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
- 245 mA
Reference/equivalence-only sparse-source exception; beam-pentode ratings/characteristics not reproduced.
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 02
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