Data set 01
1961 Tung Sol
Published operating points and test conditions from this source.
SECTION 2
Pentode
Characteristic
PentodeTransconductance
9500 uS
Section2
Voltage Triode Pentode ·Pentode-Triode
8AW8A
High-mu triode plus sharp-cutoff pentode for television IF, video, AGC/reactance, oscillator, sync, and phase-splitter circuits.
Directly heatedCold cathodeCommon cathodeDissimilar
- Sections
- 2
- Base
- 9DX
- Socket code
- B9A
- Base pins
- 9
- Nominal heater
- 8.4 V / 450 mA
Description
High-mu triode plus sharp-cutoff pentode for television IF, video, AGC/reactance, oscillator, sync, and phase-splitter circuits.
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
- 9DX
- Socket code
- B9A
- Base pins
- 9
- Nominal heater voltage
- 8.4 V
- Nominal heater current
- 450 mA
- Parallel heater voltage
- -
- Parallel heater current
- -
- Series capable
- No
9DX - Terminal pinout
Electrical assignments shared by every tube using this base designation.
| Terminal | Section | Connection | Evidence |
|---|---|---|---|
| PIN12K | B | K — Cathode EIA transcription; manufacturer confirmation pending | Unverified EIA Base Connections, printed page 131, 9DX |
| PIN22G1 | B | G1 — Control Grid EIA transcription; manufacturer confirmation pending | Unverified EIA Base Connections, printed page 131, 9DX |
| PIN32P | B | P — Plate (Anode) EIA transcription; manufacturer confirmation pending | Unverified EIA Base Connections, printed page 131, 9DX |
| PIN4H | — | H — Heater EIA transcription; manufacturer confirmation pending | Unverified EIA Base Connections, printed page 131, 9DX |
| PIN5H | — | H — Heater EIA transcription; manufacturer confirmation pending | Unverified EIA Base Connections, printed page 131, 9DX |
| PIN61G3 | A | G3 — Suppressor GridGroup 9DX6 EIA transcription; manufacturer confirmation pending | Unverified EIA Base Connections, printed page 131, 9DX |
| PIN6IS | A | IS — Internal ScreenGroup 9DX6 EIA transcription; manufacturer confirmation pending | Unverified EIA Base Connections, printed page 131, 9DX |
| PIN61K | A | K — CathodeGroup 9DX6 EIA transcription; manufacturer confirmation pending | Unverified EIA Base Connections, printed page 131, 9DX |
| PIN71G1 | A | G1 — Control Grid EIA transcription; manufacturer confirmation pending | Unverified EIA Base Connections, printed page 131, 9DX |
| PIN81G2 | A | G2 — Screen Grid EIA transcription; manufacturer confirmation pending | Unverified EIA Base Connections, printed page 131, 9DX |
| PIN91P | A | P — Plate (Anode) EIA transcription; manufacturer confirmation pending | Unverified EIA Base Connections, printed page 131, 9DX |
Section ratings
2 physical sections, each with unique specifications.
Section 1
Triode
X-ray radiationInterelectrode capacitances
- Plate resistance
- 17500 Ω
- Transconductance
- 0.004 S
- Amplification factor
- 70
- Max plate voltage
- 330 V
- Max plate dissipation
- 1.1 W
- Rectifier max heater-cathode voltage
- 200 V
- Rectifier warm-up time
- 11 s
Published promoted fields populated semantically; identical repeated sections compressed.
Section 2
Pentode
X-ray radiationInterelectrode capacitances
- Plate resistance
- 200000 Ω
- Transconductance
- 0.0095 S
- Max plate voltage
- 330 V
- Max screen voltage
- 330 V
- Max plate dissipation
- 3.75 W
- Max screen dissipation
- 1.1 W
- Rectifier max heater-cathode voltage
- 200 V
- Rectifier warm-up time
- 11 s
Published promoted fields populated semantically; identical repeated sections compressed.
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
1965 Sylvania Electronic Tubes Vol3
Published operating points and test conditions from this source.
SECTION 1
Triode
Characteristic
Heater voltage
8.4 V
Rated heater condition
Heater current
450 mA
Rated heater condition
Plate Current
4 mA
Plate Current ........ 4.0 Ma.
Grid I Cutoff Voltage® . . ,
-5 V
Grid I Cutoff Voltage® . . , -5 Volts
Other
Voltage (ac or dc)
8.4 V
Voltage (ac or dc) .......... 6.3 8.4 Volts Uni, Unit
Warm-up Time (Approx.) A
11 s
Warm-up Time (Approx.) A ...... 11 11 Seconds Grid 2 Supply Voltage. . , -- 330 max. Volts
SECTION 2
Pentode
Characteristic
Heater voltage
8.4 V
Rated heater condition
Heater current
450 mA
Rated heater condition
Data set 03
1966 Tung Sol Electronic Tubes 2 of 4
Published operating points and test conditions from this source.
SECTION 1
Triode
Other
Plate_voltage
200 V
SyncSeparator
Characteristic
Plate_current
4 mA
SyncSeparator
Amplification_factor
70
SyncSeparator
Transconductance
4000 uS
SyncSeparator
SECTION 2
Pentode
Other
Plate_voltage
200 V
VideoAmplifier
Screen_voltage
150 V
VideoAmplifier
Cathode_bias_resistor
150 ohm
VideoAmplifier
Characteristic
Plate_current
15 mA
VideoAmplifier
Screen_current
3.5 mA
VideoAmplifier
Plate_resistance
200000 ohm
VideoAmplifier
Transconductance
9500 uS
VideoAmplifier
Data set 04
1971 RCA HB3 Binder 5 of 7
Published operating points and test conditions from this source.
SECTION 1
Triode
Other
Heater voltage nominal
6.3 V
Heater current
600 mA
Maximum plate voltage
330 V
ClassA1
Maximum plate dissipation
1.1 W
ClassA1
Heater voltage nominal
8.4 V
Heater current nominal
450 mA
Characteristics
Heater warm-up time
11 s
Average
Plate supply voltage
200 V
ClassA1
Grid voltage
-2 V
ClassA1
Amplification factor
70
ClassA1
Plate resistance
17500 ohm
ClassA1
Transconductance
4000 µS
ClassA1
Plate current
4 mA
ClassA1
SECTION 2
Pentode
Other
Heater voltage nominal
6.3 V
Heater current
600 mA
Maximum plate voltage
330 V
ClassA1
Maximum plate dissipation
3.75 W
ClassA1
Maximum screen supply voltage
330 V
ClassA1
Maximum screen input at <=165 V
1.1 W
ClassA1
Heater voltage nominal
8.4 V
Heater current nominal
450 mA
Characteristics
Heater warm-up time
11 s
Average
Plate supply voltage
150 V
ClassA1
Screen supply voltage
150 V
ClassA1
Cathode resistor
150 ohm
ClassA1
Plate resistance
200000 ohm
ClassA1
Transconductance
9500 µS
ClassA1
Plate current
15 mA
ClassA1
Screen current
3.5 mA
ClassA1
Data set 05
1975 RCA RC30
Published operating points and test conditions from this source.
SECTION 1
Triode
Other
Heater Voltage (ac/dc) 6.3
8.4 V
Published in approved 8AW8A target datasheet entry; Section1
Heater Current 0.6
450 mA
Published in approved 8AW8A target datasheet entry; Section1
Heater Warm-up Time (Average) 11
11 seconds
Published in approved 8AW8A target datasheet entry; Section1
Plate Voltage 330
330 V
Published in approved 8AW8A target datasheet entry; Section1
Grid-No.2 (Screen-Grid) Supply Voltage
330 V
Published in approved 8AW8A target datasheet entry; Section1
0
0 V
Published in approved 8AW8A target datasheet entry; Section1
Plate Dissipation 1.1
3.75 W
Published in approved 8AW8A target datasheet entry; Section1
For grid-No.2 voltages up to
165 V
Published in approved 8AW8A target datasheet entry; Section1
For grid-No.2 voltages between 165 and
330 V
Published in approved 8AW8A target datasheet entry; Section1
Plate Resistance (Approx.) — •
0.2 MΩ
Published in approved 8AW8A target datasheet entry; Section1
Plate Current 4
15 mA
Published in approved 8AW8A target datasheet entry; Section1
Grid-No. 2 Current
3.5 mA
Published in approved 8AW8A target datasheet entry; Section1
20 fiA —5
-8 V
Published in approved 8AW8A target datasheet entry; Section1
For fixed-bias operation 0.5
0.25 MΩ
Published in approved 8AW8A target datasheet entry; Section1
For cathode-bias operation 1
1 MΩ
Published in approved 8AW8A target datasheet entry; Section1
Capacitance
Grid to Plate 2.2
2.2 pF
Published in approved 8AW8A target datasheet entry; Section1
Grid No.3, Internal Shield, and Heater 3.2
3.4 pF
Published in approved 8AW8A target datasheet entry; Section1
Grid No.3, Internal Shield, and Heater 1.8
3 pF
Published in approved 8AW8A target datasheet entry; Section1
Grid No.3, and Internal Shield 10
10 pF
Published in approved 8AW8A target datasheet entry; Section1
No.3, and Internal Shield 3.6
4.5 pF
Published in approved 8AW8A target datasheet entry; Section1
Characteristic
Plate Supply Voltage 200
150 V
Published in approved 8AW8A target datasheet entry; Section1
Cathode-Bias Resistor
150 Ω
Published in approved 8AW8A target datasheet entry; Section1
SECTION 2
Pentode
Other
Heater Voltage (ac/dc) 6.3
8.4 V
Published in approved 8AW8A target datasheet entry; Section2
Heater Current 0.6
450 mA
Published in approved 8AW8A target datasheet entry; Section2
Heater Warm-up Time (Average) 11
11 seconds
Published in approved 8AW8A target datasheet entry; Section2
Plate Voltage 330
330 V
Published in approved 8AW8A target datasheet entry; Section2
Grid-No.2 (Screen-Grid) Supply Voltage
330 V
Published in approved 8AW8A target datasheet entry; Section2
0
0 V
Published in approved 8AW8A target datasheet entry; Section2
Plate Dissipation 1.1
3.75 W
Published in approved 8AW8A target datasheet entry; Section2
For grid-No.2 voltages up to
165 V
Published in approved 8AW8A target datasheet entry; Section2
For grid-No.2 voltages between 165 and
330 V
Published in approved 8AW8A target datasheet entry; Section2
Plate Resistance (Approx.) — •
0.2 MΩ
Published in approved 8AW8A target datasheet entry; Section2
Plate Current 4
15 mA
Published in approved 8AW8A target datasheet entry; Section2
Grid-No. 2 Current
3.5 mA
Published in approved 8AW8A target datasheet entry; Section2
20 fiA —5
-8 V
Published in approved 8AW8A target datasheet entry; Section2
For fixed-bias operation 0.5
0.25 MΩ
Published in approved 8AW8A target datasheet entry; Section2
For cathode-bias operation 1
1 MΩ
Published in approved 8AW8A target datasheet entry; Section2
Capacitance
Grid to Plate 2.2
2.2 pF
Published in approved 8AW8A target datasheet entry; Section2
Grid No.3, Internal Shield, and Heater 3.2
3.4 pF
Published in approved 8AW8A target datasheet entry; Section2
Grid No.3, Internal Shield, and Heater 1.8
3 pF
Published in approved 8AW8A target datasheet entry; Section2
Grid No.3, and Internal Shield 10
10 pF
Published in approved 8AW8A target datasheet entry; Section2
No.3, and Internal Shield 3.6
4.5 pF
Published in approved 8AW8A target datasheet entry; Section2
Characteristic
Plate Supply Voltage 200
150 V
Published in approved 8AW8A target datasheet entry; Section2
Cathode-Bias Resistor
150 Ω
Published in approved 8AW8A target datasheet entry; Section2