Data set 01
1950 Sylvania
Published operating points and test conditions from this source.
SECTION 1
Triode
Application
Service
VHF oscillator and mixer
Voltage Radio Detector Converter ·Pentode-Triode
6KZ8
Medium-mu triode and sharp-cutoff pentode used together as oscillator and mixer in VHF television receivers.
Directly heatedCold cathodeCommon cathodeDissimilar
- Sections
- 2
- Base
- 9FZ
- Socket code
- B9A
- Base pins
- 9
- Nominal heater
- 6.3 V / 450 mA
Description
Medium-mu triode and sharp-cutoff pentode for combined VHF television oscillator and mixer service. Explicit heater variant/co-designation of 9KZ8 in the approved source.
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
- 9FZ
- 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
9FZ - Terminal pinout
Electrical assignments shared by every tube using this base designation.
| Terminal | Section | Connection | Evidence |
|---|---|---|---|
| PIN1Base Pin | A | P — Plate (Anode) Literal label 1P; manufacturer confirmation pending | Unverified EIA Base Connections printed p132, 9FZ |
| PIN2Base Pin | B | G1 — Control Grid Literal label 2G1; manufacturer confirmation pending | Unverified EIA Base Connections printed p132, 9FZ |
| PIN3Base Pin | B | G3 — Suppressor GridGroup 9FZ3 Literal label 2G3; manufacturer confirmation pending | Unverified EIA Base Connections printed p132, 9FZ |
| PIN3Base Pin | B | K — CathodeGroup 9FZ3 Literal label 2K; manufacturer confirmation pending | Unverified EIA Base Connections printed p132, 9FZ |
| PIN3Base Pin | — | IS — Internal ScreenGroup 9FZ3 Literal label IS; manufacturer confirmation pending | Unverified EIA Base Connections printed p132, 9FZ |
| PIN4Base Pin | — | H — Heater Literal label H; manufacturer confirmation pending | Unverified EIA Base Connections printed p132, 9FZ |
| PIN5Base Pin | — | H — Heater Literal label H; manufacturer confirmation pending | Unverified EIA Base Connections printed p132, 9FZ |
| PIN6Base Pin | B | P — Plate (Anode) Literal label 2P; manufacturer confirmation pending | Unverified EIA Base Connections printed p132, 9FZ |
| PIN7Base Pin | B | G2 — Screen Grid Literal label 2G2; manufacturer confirmation pending | Unverified EIA Base Connections printed p132, 9FZ |
| PIN8Base Pin | A | K — Cathode Literal label 1K; manufacturer confirmation pending | Unverified EIA Base Connections printed p132, 9FZ |
| PIN9Base Pin | A | G1 — Control Grid Literal label 1G1; manufacturer confirmation pending | Unverified EIA Base Connections printed p132, 9FZ |
Section ratings
2 physical sections, each with unique specifications.
Section 1
Triode
X-ray radiationInterelectrode capacitances
- Plate resistance
- 5400 Ω
- Transconductance
- 0.0085 S
- Amplification factor
- 46
- Max plate voltage
- 330 V
- Max plate dissipation
- 2.5 W
Representative electrical section from supplied RCA data sheet.
Section 2
Pentode
X-ray radiationInterelectrode capacitances
- Plate resistance
- 200000 Ω
- Transconductance
- 0.0075 S
- Max plate voltage
- 330 V
- Max screen voltage
- 330 V
- Max plate dissipation
- 2.5 W
- Max screen dissipation
- 0.55 W
Representative electrical section from supplied RCA data sheet.
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
Characteristics
Heater Voltage
6.3 V
Heater Current
450 mA
Grid-Plate Capacitance
1.6 pF
Input Capacitance
3.2 pF
Output Capacitance
0.9 pF
SECTION 2
Pentode
Characteristics
Grid-Plate Capacitance
0.01 pF
Input Capacitance
5.5 pF
Output Capacitance
3.4 pF
Other
Maximum Screen Supply Voltage
330 V
Maximum Screen Dissipation
0.55 W
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 nominal
6.3 V
Heater current
450 mA
Characteristics
Voltage (AC or DC)
6.3 A
Published table column
Current
0 mA
Published table column
Warm-up time (Average)
11 s
Published source row
Plate resistance
5400 ohm
Promoted field corroboration
Transconductance
8500 µS
Promoted field corroboration
Amplification factor
46
Promoted field corroboration
SECTION 2
Pentode
Other
Heater voltage nominal
6.3 V
Heater current
450 mA
Plate Voltage
330 V
Published source row
Plate Voltage (value 2)
330 V
Published source row
Grid-No
2
Published source row
Supply Voltage
330 V
Published source row
Grid-No
2
Published source row
Grid-No
1
Published source row
Plate Dissipation
2 W
Published source row
Plate Dissipation (value 2)
5 W
Published source row
Plate Dissipation (value 3)
2.5 W
Published source row
Grid-No
2
Published source row
For grid-No
2
Published source row
For grid-No
2
Published source row
Published electrical value
330
Published source row
Published electrical value (value 2)
2
Published source row
Characteristics
Voltage (AC or DC)
6.3 A
Published table column
Current
450 A
Published table column
Warm-up time (Average)
11 s
Published source row
Plate Voltage
125 V
Published source row
Plate Voltage (value 2)
125 V
Published source row
Grid-No
2 V
Published source row
Grid-No (value 2)
125 V
Published source row
Grid-No
1 V
Published source row
Grid-No (value 2)
-1 V
Published source row
Grid-No (value 3)
-1 V
Published source row
Plate Resistance (Approx )
5400 ohm
Published source row
Plate Resistance (Approx ) (value 2)
200000 ohm
Published source row
Transconductance
8500 µS
Published source row
Transconductance (value 2)
7500 µS
Published source row
Plate Current
13.5 mA
Published source row
Plate Current (value 2)
12 mA
Published source row
Grid-No
2 mA
Published source row
Grid-No (value 2)
4 mA
Published source row
Grid No
1
Published source row
Cathode, ~'
3
Published source row
Cathode, ~' (value 2)
2
Published source row
Data set 04
1975 RCA RC30
Published operating points and test conditions from this source.
SECTION 1
Triode
Other
Heater Warm-up Time (Average)
11 s
Other;PublishedValue1
Heater Warm-up Time (Average)
11 s
Other;PublishedValue2
Heater Warm-up Time (Average)
11 s
Other;PublishedValue3
Peak value
200 V
Other;PublishedValue1
Peak value
200 V
Other;PublishedValue2
Peak value
200 V
Other;PublishedValue3
Average value
100 V
Other;PublishedValue1
Average value
100 V
Other;PublishedValue2
Average value
100 V
Other;PublishedValue3
Grid to Plate
1.6 pF
Other
Grid to Ti'iode Cathode, Pentode Cathode, Heater, Pentode Grid
3 pF
Other;PublishedValue1
Grid to Ti'iode Cathode, Pentode Cathode, Heater, Pentode Grid
3.2 pF
Other;PublishedValue2
Plate to Triode Cathode, Pentode Cathode, Heater, Pentode Grid
3 pF
Other;PublishedValue1
Plate to Triode Cathode, Pentode Cathode, Heater, Pentode Grid
1.8 pF
Other;PublishedValue2
Grid No.l to Plate
0.01 pF
Other
Internal Shield
5.5 pF
Other
Internal Shield
3.4 pF
Other
Heater to Cathode (Each Unit)
3.2 pF
Other
Plate Voltage
330 V
MaximumRating;PublishedValue1
Plate Voltage
330 V
MaximumRating;PublishedValue2
Grid-No
2 V
MaximumRating;PublishedValue1
Grid-No
330 V
MaximumRating;PublishedValue2
Grid No.l (Control-Grid) Voltage, Positive-bias value
0 V
MaximumRating;PublishedValue1
Grid No.l (Control-Grid) Voltage, Positive-bias value
0 V
MaximumRating;PublishedValue2
Plate Dissipation
2.5 W
MaximumRating;PublishedValue1
Plate Dissipation
2.5 W
MaximumRating;PublishedValue2
For grid-No
2 V
MaximumRating;PublishedValue1
For grid-No
165 V
MaximumRating;PublishedValue2
For grid-No
0.55 V
MaximumRating;PublishedValue3
For grid-No
2 V
MaximumRating;PublishedValue1
For grid-No
165 V
MaximumRating;PublishedValue2
For grid-No
330 V
MaximumRating;PublishedValue3
For grid-No
300 V
MaximumRating;PublishedValue4
Maximum Plate Voltage
330 V
Section1
Maximum Plate Dissipation
2.5 W
Section1
Characteristic
Plate Voltage
125 V
Characteristic;PublishedValue1
Plate Voltage
125 V
Characteristic;PublishedValue2
Grid-No
1 V
Characteristic;PublishedValue1
Grid-No
-1 V
Characteristic;PublishedValue2
Plate Resistance (Approx.)
5400 ohm
Characteristic;PublishedValue1
Plate Resistance (Approx.)
200000 ohm
Characteristic;PublishedValue2
Plate Current
13.5 mA
Characteristic;PublishedValue1
Plate Current
12 mA
Characteristic;PublishedValue2
Grid-No
2 mA
Characteristic;PublishedValue1
Grid-No
4 mA
Characteristic;PublishedValue2
Grid-No.l Voltage (Approx.) for plate current of
10 V
Characteristic;PublishedValue1
Grid-No.l Voltage (Approx.) for plate current of
-8 V
Characteristic;PublishedValue2
Grid-No.l Voltage (Approx.) for plate current of
-8 V
Characteristic;PublishedValue3
Plate Resistance
5400 ohm
Section1
Transconductance
8500 uS
Section1
Amplification Factor
46
Section1
SECTION 2
Pentode
Other
Maximum Plate Voltage
330 V
Section2
Maximum Screen Voltage
330 V
Section2
Maximum Plate Dissipation
2.5 W
Section2
Characteristic
Plate Resistance
200000 ohm
Section2
Transconductance
7500 uS
Section2