Data set 01
1961 Tung Sol
Published operating points and test conditions from this source.
SECTION 1
Triode
Other
Heater voltage
6.3 V
Heater current
600 mA
SECTION 2
Pentode
Other
Heater voltage
6.3 V
Heater current
600 mA
Voltage Triode Pentode ·Pentode-Triode
6LF8
Combined triode-pentode for television video, sync, burst, IF, AGC, or related signal-processing circuits.
Directly heatedCold cathodeCommon cathodeDissimilar
- Sections
- 2
- Base
- 9DX
- Socket code
- B9A
- Base pins
- 9
- Nominal heater
- 6.3 V / 600 mA
Description
High-mu triode and sharp-cutoff pentode used in video-amplifier stages of color and black-and-white television receivers.
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
- 6.3 V
- Nominal heater current
- 600 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
- 300 V
- Max plate dissipation
- 1.1 W
Published promoted values applied where applicable; additional ratings, characteristics, and operating data retained as parameters.
Section 2
Pentode
X-ray radiationInterelectrode capacitances
- Plate resistance
- 200000 Ω
- Transconductance
- 0.011 S
- Max plate voltage
- 300 V
- Max screen voltage
- 330 V
- Max plate dissipation
- 3.75 W
- Max screen dissipation
- 1.5 W
Published promoted values applied where applicable; additional ratings, characteristics, and operating data retained as parameters.
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
1964 RMA EIA
Published operating points and test conditions from this source.
SECTION 1
Triode
Characteristic
Heater Voltage
6.3 V
Heater Current
600 mA
Plate Voltage
200 V
Grid Voltage
-2 V
Plate Current
4 mA
Amplification Factor
70
Plate Resistance
17500 ohm
Transconductance
4000 uS
Grid To Plate Capacitance
2.2 pF
Input Capacitance
3.2 pF
Output Capacitance
1.8 pF
Other
PositiveGridBiasMaximum
4 V
GridCurrentMaximum
8 mA
SECTION 2
Pentode
Characteristic
Plate Voltage
100 V
Screen Voltage
150 V
Grid Voltage
-2.5 V
Plate Current
20 mA
Screen Current
5 mA
Plate Resistance
200000 ohm
Transconductance
11000 uS
Grid To Plate Capacitance
0.06 pF
Input Capacitance
10 pF
Output Capacitance
3.6 pF
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
125 V
ClassA
Characteristic
Transconductance
4000 uS
ClassA
Plate resistance
17500 ohm
ClassA
Amplification factor
70
ClassA
Capacitance
Input capacitance
3 pF
Section1
Output capacitance
3 pF
Section1
SECTION 2
Pentode
Other
Plate voltage
125 V
ClassA
Screen voltage
100 V
ClassA
Characteristic
Transconductance
11000 uS
ClassA
Plate resistance
200000 ohm
ClassA
Capacitance
Input capacitance
3 pF
Section2
Output capacitance
3 pF
Section2
Data set 04
1971 RCA HB3 Binder 5 of 7
Published operating points and test conditions from this source.
SECTION 1
Triode
Characteristics
Voltage (AC or DC) — published value 1
6.3 V
Published datasheet value; multiple values represent separate source-table limits or conditions.
Voltage (AC or DC) — published value 2
0.6 V
Published datasheet value; multiple values represent separate source-table limits or conditions.
Current at heater volts = 6 3 — published value 1
6 V
Published datasheet value; multiple values represent separate source-table limits or conditions.
Current at heater volts = 6 3 — published value 2
3 V
Published datasheet value; multiple values represent separate source-table limits or conditions.
Current at heater volts = 6 3 — published value 3
0.6006 V
Published datasheet value; multiple values represent separate source-table limits or conditions.
Pin 1 -Triode Cathode
1
Published datasheet value; multiple values represent separate source-table limits or conditions.
Pin 2 -Triode Grid
2
Published datasheet value; multiple values represent separate source-table limits or conditions.
Pin 3 -Triode Plate
3
Published datasheet value; multiple values represent separate source-table limits or conditions.
Pin 4 -Heater
4
Published datasheet value; multiple values represent separate source-table limits or conditions.
Pin 5 -Heater
5
Published datasheet value; multiple values represent separate source-table limits or conditions.
Plate Voltage — published value 1
200 V
Published datasheet value; multiple values represent separate source-table limits or conditions.
Plate Voltage — published value 2
40 V
Published datasheet value; multiple values represent separate source-table limits or conditions.
Plate Voltage — published value 3
75 V
Published datasheet value; multiple values represent separate source-table limits or conditions.
Plate Voltage — published value 4
100 V
Published datasheet value; multiple values represent separate source-table limits or conditions.
Grid-No.2 Voltage — published value 1
150 V
Published datasheet value; multiple values represent separate source-table limits or conditions.
Grid-No.2 Voltage — published value 2
150 V
Published datasheet value; multiple values represent separate source-table limits or conditions.
Grid-No.1 Voltage — published value 1
-2 V
Published datasheet value; multiple values represent separate source-table limits or conditions.
Grid-No.1 Voltage — published value 2
3 V
Published datasheet value; multiple values represent separate source-table limits or conditions.
Grid-No.1 Voltage — published value 3
0 V
Published datasheet value; multiple values represent separate source-table limits or conditions.
Grid-No.1 Voltage — published value 4
-2.5 V
Published datasheet value; multiple values represent separate source-table limits or conditions.
Plate Resistance (Approx.) — published value 1
17500 ohm
Published datasheet value; multiple values represent separate source-table limits or conditions.
Plate Resistance (Approx.) — published value 2
10000 ohm
Published datasheet value; multiple values represent separate source-table limits or conditions.
Plate Resistance (Approx.) — published value 3
200000 ohm
Published datasheet value; multiple values represent separate source-table limits or conditions.
Transconductance — published value 1
4000
Published datasheet value; multiple values represent separate source-table limits or conditions.
Transconductance — published value 2
4000
Published datasheet value; multiple values represent separate source-table limits or conditions.
Transconductance — published value 3
11000
Published datasheet value; multiple values represent separate source-table limits or conditions.
Plate Current — published value 1
4 mA
Published datasheet value; multiple values represent separate source-table limits or conditions.
Plate Current — published value 2
11 mA
Published datasheet value; multiple values represent separate source-table limits or conditions.
Plate Current — published value 3
50 mA
Published datasheet value; multiple values represent separate source-table limits or conditions.
Plate Current — published value 4
20 mA
Published datasheet value; multiple values represent separate source-table limits or conditions.
Grid-No.2 Current — published value 1
12 mA
Published datasheet value; multiple values represent separate source-table limits or conditions.
Grid-No.2 Current — published value 2
5 mA
Published datasheet value; multiple values represent separate source-table limits or conditions.
Grid-No.1 Current — published value 1
0 mA
Published datasheet value; multiple values represent separate source-table limits or conditions.
Grid-No.1 Current — published value 2
2.7 mA
Published datasheet value; multiple values represent separate source-table limits or conditions.
Grid-No.1 Current — published value 3
0 mA
Published datasheet value; multiple values represent separate source-table limits or conditions.
Grid-No.1 Current — published value 4
0 mA
Published datasheet value; multiple values represent separate source-table limits or conditions.
for plate µa = 20 — published value 1
20 V
Published datasheet value; multiple values represent separate source-table limits or conditions.
for plate µa = 20 — published value 2
-5 V
Published datasheet value; multiple values represent separate source-table limits or conditions.
for plate µa = 20 — published value 3
-8 V
Published datasheet value; multiple values represent separate source-table limits or conditions.
between 165 and 330 volts — published value 1
165 V
Published datasheet value; multiple values represent separate source-table limits or conditions.
between 165 and 330 volts — published value 2
330 V
Published datasheet value; multiple values represent separate source-table limits or conditions.
heater operation current must be limited to 0.600 t0.0Y0 am—
0.6
Published datasheet value; multiple values represent separate source-table limits or conditions.
PLATE VOLTS = 00
0 V
Published datasheet value; multiple values represent separate source-table limits or conditions.
GRID—No.2 VOLTS- I50 11111111111111lIlll l~illilllllil111R1~I~~IIIIIII
11111111111111 V
Published datasheet value; multiple values represent separate source-table limits or conditions.
Other
Heater negative with respect to cathode 200 max. volts
200 V
Published datasheet value; multiple values represent separate source-table limits or conditions.
Heater positive with respect to cathode 200° max. volts
200 V
Published datasheet value; multiple values represent separate source-table limits or conditions.
Plate Voltage — published value 1
330 V
Published datasheet value; multiple values represent separate source-table limits or conditions.
Plate Voltage — published value 2
330 V
Published datasheet value; multiple values represent separate source-table limits or conditions.
Supply Voltage
330 V
Published datasheet value; multiple values represent separate source-table limits or conditions.
Negative-bias value — published value 1
55 V
Published datasheet value; multiple values represent separate source-table limits or conditions.
Negative-bias value — published value 2
55 V
Published datasheet value; multiple values represent separate source-table limits or conditions.
Positive-bias value — published value 1
4 V
Published datasheet value; multiple values represent separate source-table limits or conditions.
Positive-bias value — published value 2
0 V
Published datasheet value; multiple values represent separate source-table limits or conditions.
Grid-No.1 Current — published value 1
8 mA
Published datasheet value; multiple values represent separate source-table limits or conditions.
Grid-No.1 Current — published value 2
0 mA
Published datasheet value; multiple values represent separate source-table limits or conditions.
Plate Dissipation — published value 1
1 mA
Published datasheet value; multiple values represent separate source-table limits or conditions.
Plate Dissipation — published value 2
1 mA
Published datasheet value; multiple values represent separate source-table limits or conditions.
Plate Dissipation — published value 3
3.75 mA
Published datasheet value; multiple values represent separate source-table limits or conditions.
For fixed-bias operation — published value 1
0.5 mA
Published datasheet value; multiple values represent separate source-table limits or conditions.
For fixed-bias operation — published value 2
0.25 mA
Published datasheet value; multiple values represent separate source-table limits or conditions.
For cathode-bias operation
1 mA
Published datasheet value; multiple values represent separate source-table limits or conditions.
script 1 atltl ed to the class letter denotes that grid current tlo es not
1
Published datasheet value; multiple values represent separate source-table limits or conditions.
SECTION 2
Pentode
Characteristics
'Pin 6- Pentode Cathode,
6
Published datasheet value; multiple values represent separate source-table limits or conditions.
Pin 7- Pentode Grid No.l
7
Published datasheet value; multiple values represent separate source-table limits or conditions.
Pin 8- Pentode Grid No.2
8
Published datasheet value; multiple values represent separate source-table limits or conditions.
Pin 9- Pentode Plate
9
Published datasheet value; multiple values represent separate source-table limits or conditions.
Data set 05
1975 RCA RC30
Published operating points and test conditions from this source.
SECTION 1
Triode
Other
Heater Voltage
6.3 V
Nominal
Heater Current
600 mA
Nominal
Plate Voltage
200 V
ClassA
Control Grid Voltage
-2 V
ClassA
Plate Current
4 mA
ClassA
Capacitance
Grid-to-Plate Capacitance
2.2 pF
Grid Input Capacitance
3.2 pF
Plate Output Capacitance
1.8 pF
SECTION 2
Pentode
Capacitance
Grid No.1-to-Plate Capacitance
0.06 pF
Grid No.1 Input Capacitance
10 pF
Plate Output Capacitance
3.6 pF
Pentode Grid No.1-to-Triode Plate Capacitance
0.008 pF
Pentode Plate-to-Triode Plate Capacitance
0.15 pF
Other
Plate Voltage
100 V
ClassA
Screen Voltage
150 V
ClassA
Control Grid Voltage
-2.5 V
ClassA
Plate Current
20 mA
ClassA
Screen Current
5 mA
ClassA