Data set 01
1950 Sylvania
Published operating points and test conditions from this source.
SECTION 1
Triode
Application
Primary application
Low-frequency oscillator
SECTION 2
Pentode
Application
Primary application
Video amplifier
Voltage Triode Pentode ·Pentode-Triode
6AN8A
Combined triode-pentode for television video, IF, AGC, sync, burst, band-pass, or related signal-processing stages.
Directly heatedCold cathodeCommon cathodeDissimilar
- Sections
- 2
- Base
- 9DA
- Socket code
- B9A
- Base pins
- 9
- Nominal heater
- 6.3 V / 450 mA
Description
Medium-mu triode plus sharp-cutoff pentode for television IF/video/AGC and oscillator, sync, phase-splitter, and reactance-tube 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
- 9DA
- Socket code
- B9A
- Base pins
- 9
- Nominal heater voltage
- 6.3 V
- Nominal heater current
- 450 mA
- Parallel heater voltage
- -
- Parallel heater current
- -
- Series capable
- No
9DA - Terminal pinout
Electrical assignments shared by every tube using this base designation.
| Terminal | Section | Connection | Evidence |
|---|---|---|---|
| PIN12P | B | P — Plate (Anode) Chart transcription; manufacturer verification pending | Unverified EIA Base Connections, printed page 131, 9DA |
| PIN22G1 | B | G1 — Control Grid Chart transcription; manufacturer verification pending | Unverified EIA Base Connections, printed page 131, 9DA |
| PIN32K | B | K — Cathode Chart transcription; manufacturer verification pending | Unverified EIA Base Connections, printed page 131, 9DA |
| PIN4H | — | H — Heater Chart transcription; manufacturer verification pending | Unverified EIA Base Connections, printed page 131, 9DA |
| PIN5H | — | H — Heater Chart transcription; manufacturer verification pending | Unverified EIA Base Connections, printed page 131, 9DA |
| PIN61P | A | P — Plate (Anode) Chart transcription; manufacturer verification pending | Unverified EIA Base Connections, printed page 131, 9DA |
| PIN71G2 | A | G2 — Screen Grid Chart transcription; manufacturer verification pending | Unverified EIA Base Connections, printed page 131, 9DA |
| PIN81G1 | A | G1 — Control Grid Chart transcription; manufacturer verification pending | Unverified EIA Base Connections, printed page 131, 9DA |
| PIN91G3 | A | G3 — Suppressor GridGroup 9DA9 Chart transcription; manufacturer verification pending | Unverified EIA Base Connections, printed page 131, 9DA |
| PIN9IS | A | IS — Internal ScreenGroup 9DA9 Chart transcription; manufacturer verification pending | Unverified EIA Base Connections, printed page 131, 9DA |
| PIN9K | A | K — CathodeGroup 9DA9 Chart transcription; manufacturer verification pending | Unverified EIA Base Connections, printed page 131, 9DA |
Section ratings
2 physical sections, each with unique specifications.
Section 1
Triode
X-ray radiationInterelectrode capacitances
- Plate resistance
- 4700 Ω
- Transconductance
- 0.0045 S
- Amplification factor
- 21
- Max plate voltage
- 300 V
- Max plate dissipation
- 1 W
Triode section.
Section 2
Pentode
X-ray radiationInterelectrode capacitances
- Plate resistance
- 170000 Ω
- Transconductance
- 0.0078 S
- Max plate voltage
- 300 V
- Max screen voltage
- 300 V
- Max plate dissipation
- 3.5 W
- Max screen dissipation
- 0.5 W
Pentode section.
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 Westinghouse Data Book
Published operating points and test conditions from this source.
SECTION 1
Triode
Characteristic
HeaterOrFilamentVoltage
6.3 V
HeaterOrFilamentCurrent
450 mA
ControlledWarmupHeater
1 boolean
Heater Warmup Time
11 s
Transconductance
5700 uS
Amplification Factor
21
Grid To Plate Capacitance
2 pF
Input Capacitance
3 pF
Output Capacitance
2 pF
Other
Plate Voltage
150 V
TriodeUnit
Plate Current
10 mA
TriodeUnit
SECTION 2
Pentode
Other
Plate Voltage
150 V
PentodeUnit
Screen Voltage
150 V
PentodeUnit
Plate Current
10 mA
PentodeUnit
Screen Current
3.5 mA
PentodeUnit
Characteristic
Transconductance
7000 uS
GridToPlateCapacitanceMaximum
0.015 pF
Input Capacitance
5 pF
Output Capacitance
3.5 pF
Data set 03
1966 Tung Sol Electronic Tubes 1 of 4
Published operating points and test conditions from this source.
SECTION 1
Triode
Capacitance
Grid-to-plate capacitance
1.5 pF
TriodeSection
Input capacitance
2 pF
TriodeSection
Output capacitance
0.26 pF
TriodeSection
Other
Plate supply voltage
150 V
ClassA;TriodeSection
Grid voltage
-3 V
ClassA;TriodeSection
Plate current
15 mA
ClassA;TriodeSection
Application
Low-frequency oscillator, sync clipper/separator, phase splitter
Section1
Characteristic
Amplification factor
21
TriodeSection
Transconductance
4500 µS
TriodeSection
Plate resistance
4700 Ω
TriodeSection
SECTION 2
Pentode
Capacitance
Grid-to-plate capacitance maximum
0.04 pF
PentodeSection
Input capacitance
7 pF
PentodeSection
Output capacitance
2.4 pF
PentodeSection
Other
Plate supply voltage
125 V
ClassA;PentodeSection
Screen supply voltage
125 V
ClassA;PentodeSection
Cathode-bias resistor
56 Ω
ClassA;PentodeSection
Plate current
12 mA
ClassA;PentodeSection
Screen current
3.8 mA
ClassA;PentodeSection
Application
IF amplifier or reactance-tube service
Section2
Characteristic
Transconductance
7800 µS
PentodeSection
Plate resistance
170000 Ω
PentodeSection
Data set 04
1971 RCA HB3 Binder 4 of 7
Published operating points and test conditions from this source.
SECTION 1
Triode
Other
Heater voltage nominal
6.3 V
Heater current
450 mA
Maximum plate voltage
330 V
ClassA1
Maximum plate dissipation
2.8 W
ClassA1
Characteristics
Heater warm-up time
11 s
Average
Plate supply voltage
150 V
ClassA1
Grid No.1 supply voltage
-3 V
ClassA1
Amplification factor
21
ClassA1
Plate resistance
4700 ohm
ClassA1
Transconductance
4500 µS
ClassA1
Plate current
15 mA
ClassA1
Capacitance
Grid-to-plate capacitance
2.2 pF
Grid-to-cathode-and-heater capacitance
2.6 pF
Plate-to-cathode-and-heater capacitance
0.34 pF
SECTION 2
Pentode
Other
Heater voltage nominal
6.3 V
Heater current
450 mA
Maximum plate voltage
330 V
ClassA1
Maximum plate dissipation
2.3 W
ClassA1
Maximum screen supply voltage
330 V
ClassA1
Maximum screen input at <=165 V
0.55 W
ClassA1
Characteristics
Heater warm-up time
11 s
Average
Plate supply voltage
125 V
ClassA1
Screen supply voltage
125 V
ClassA1
Cathode resistor
56 ohm
ClassA1
Plate resistance
170000 ohm
ClassA1
Transconductance
7800 µS
ClassA1
Plate current
12 mA
ClassA1
Screen current
3.8 mA
ClassA1
Capacitance
Grid No.1-to-plate capacitance
0.06 pF
Input capacitance
7.5 pF
Output capacitance
3.4 pF
Data set 05
1975 RCA RC30
Published operating points and test conditions from this source.
SECTION 1
Triode
Other
Heater Voltage (ac/dc) 4.7
6.3 V
Published in approved 6AN8A target entry; Section1
Heater Current O.G
450 mA
Published in approved 6AN8A target entry; Section1
Heater Warm-up Time (Average) 11
11 seconds
Published in approved 6AN8A target entry; Section1
Pentode Plate to Triode Plate
0.15 pF
Published in approved 6AN8A target entry; Section1
Plate Voltage 330
330 V
Published in approved 6AN8A target entry; Section1
Grid-No.2 Supply Voltage
330 V
Published in approved 6AN8A target entry; Section1
Grid-No.l (Control-Grid) Voltage, Positive-bias value 0
0 V
Published in approved 6AN8A target entry; Section1
Plate Dissipation 2.8
2.3 W
Published in approved 6AN8A target entry; Section1
For grid-No. 2 voltages up to
165 V
Published in approved 6AN8A target entry; Section1
For grid-No. 2 voltages up to 165 volts
0.55 W
Published in approved 6AN8A target entry; Section1
For grid-No. 2 voltages between 165 and
330 V
Published in approved 6AN8A target entry; Section1
For fixed-bias operation 0.5
0.25 MΩ
Published in approved 6AN8A target entry; Section1
For cathode-bias operation 1
1 MΩ
Published in approved 6AN8A target entry; Section1
GRID-No
2 V
Published in approved 6AN8A target entry; Section1
Heater Voltage (ac/dc) 4.7 6.3
12.6 V
Published in approved 6AN8A target entry; Section1
Heater Current 0.6 0.45
225 mA
Published in approved 6AN8A target entry; Section1
Capacitance
Grid to Cathode and Heater
2 pF
Published in approved 6AN8A target entry; Section1
Plate to Cathode and Heater
0.26 pF
Published in approved 6AN8A target entry; Section1
Internal Shield
7 pF
Published in approved 6AN8A target entry; Section1
Internal Shield
2.4 pF
Published in approved 6AN8A target entry; Section1
Triode Grid to Pentode Plate
0.02 pF
Published in approved 6AN8A target entry; Section1
Pentode Grid No.l to Triode Plate
0.02 pF
Published in approved 6AN8A target entry; Section1
Grid No.l to Plate
0.4 pF
Published in approved 6AN8A target entry; Section1
Grid No.l to Cathode, Heater, Grid No.2, and Grid No.3
8 pF
Published in approved 6AN8A target entry; Section1
Plate to Cathode, Heater, Grid No.2, and Grid No
3 pF
Published in approved 6AN8A target entry; Section1
Characteristic
Plate Supply Voltage 150
125 V
Published in approved 6AN8A target entry; Section1
Grid-No.2 Supply Voltage
125 V
Published in approved 6AN8A target entry; Section1
Cathode-Bias Resistor
56 Ω
Published in approved 6AN8A target entry; Section1
Plate Resistance (Approx.) 4700
170000 Ω
Published in approved 6AN8A target entry; Section1
Plate Current 15
12 mA
Published in approved 6AN8A target entry; Section1
Grid-No.2 Current
3.8 mA
Published in approved 6AN8A target entry; Section1
20 iiA —17
-6 V
Published in approved 6AN8A target entry; Section1
1.6 mA
-3 V
Published in approved 6AN8A target entry; Section1
SECTION 2
Pentode
Other
Heater Voltage (ac/dc) 4.7
6.3 V
Published in approved 6AN8A target entry; Section2
Heater Current O.G
450 mA
Published in approved 6AN8A target entry; Section2
Heater Warm-up Time (Average) 11
11 seconds
Published in approved 6AN8A target entry; Section2
Pentode Plate to Triode Plate
0.15 pF
Published in approved 6AN8A target entry; Section2
Plate Voltage 330
330 V
Published in approved 6AN8A target entry; Section2
Grid-No.2 Supply Voltage
330 V
Published in approved 6AN8A target entry; Section2
Grid-No.l (Control-Grid) Voltage, Positive-bias value 0
0 V
Published in approved 6AN8A target entry; Section2
Plate Dissipation 2.8
2.3 W
Published in approved 6AN8A target entry; Section2
For grid-No. 2 voltages up to
165 V
Published in approved 6AN8A target entry; Section2
For grid-No. 2 voltages up to 165 volts
0.55 W
Published in approved 6AN8A target entry; Section2
For grid-No. 2 voltages between 165 and
330 V
Published in approved 6AN8A target entry; Section2
For fixed-bias operation 0.5
0.25 MΩ
Published in approved 6AN8A target entry; Section2
For cathode-bias operation 1
1 MΩ
Published in approved 6AN8A target entry; Section2
GRID-No
2 V
Published in approved 6AN8A target entry; Section2
Heater Voltage (ac/dc) 4.7 6.3
12.6 V
Published in approved 6AN8A target entry; Section2
Heater Current 0.6 0.45
225 mA
Published in approved 6AN8A target entry; Section2
Capacitance
Grid to Cathode and Heater
2 pF
Published in approved 6AN8A target entry; Section2
Plate to Cathode and Heater
0.26 pF
Published in approved 6AN8A target entry; Section2
Internal Shield
7 pF
Published in approved 6AN8A target entry; Section2
Internal Shield
2.4 pF
Published in approved 6AN8A target entry; Section2
Triode Grid to Pentode Plate
0.02 pF
Published in approved 6AN8A target entry; Section2
Pentode Grid No.l to Triode Plate
0.02 pF
Published in approved 6AN8A target entry; Section2
Grid No.l to Plate
0.4 pF
Published in approved 6AN8A target entry; Section2
Grid No.l to Cathode, Heater, Grid No.2, and Grid No.3
8 pF
Published in approved 6AN8A target entry; Section2
Plate to Cathode, Heater, Grid No.2, and Grid No
3 pF
Published in approved 6AN8A target entry; Section2
Characteristic
Plate Supply Voltage 150
125 V
Published in approved 6AN8A target entry; Section2
Grid-No.2 Supply Voltage
125 V
Published in approved 6AN8A target entry; Section2
Cathode-Bias Resistor
56 Ω
Published in approved 6AN8A target entry; Section2
Plate Resistance (Approx.) 4700
170000 Ω
Published in approved 6AN8A target entry; Section2
Plate Current 15
12 mA
Published in approved 6AN8A target entry; Section2
Grid-No.2 Current
3.8 mA
Published in approved 6AN8A target entry; Section2
20 iiA —17
-6 V
Published in approved 6AN8A target entry; Section2
1.6 mA
-3 V
Published in approved 6AN8A target entry; Section2