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
6AN8
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 general television applications including IF amplification, reactance service, oscillation, sync processing, and phase splitting.
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
195X General Electric Essential Characteristics
Published operating points and test conditions from this source.
SECTION 2
Pentode
Other
Maximum plate voltage
300 V
Published handbook rating
Maximum screen voltage
150 V
Published handbook rating
Plate voltage
200 V
ClassA
Screen voltage
150 V
ClassA
Plate current
9.5 mA
ClassA
Screen current
2.8 mA
ClassA
Characteristic
Plate resistance
300000 ohm
Published handbook characteristic
Transconductance
6200 µS
Published handbook characteristic
Heater voltage
6.3 V
Published heater rating
Heater current
450 mA
Published heater rating
Data set 03
1965 Westinghouse Data Book
Published operating points and test conditions from this source.
SECTION 1
Triode
Characteristic
HeaterOrFilamentVoltage
6.3 V
HeaterOrFilamentCurrent
450 mA
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 04
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