Data set 01
1940 RCA
Published operating points and test conditions from this source.
SECTION 1
Pentode
Application
Application
LowNoise_AudioAmplifier text
Voltage Pentode - Sharp Cutoff (single) ·Pentode
5879
Sharp-cutoff pentode designed for low-level audio-amplifier input stages in public-address, recording, and audio equipment.
Directly heatedCold cathodeCommon cathodeDissimilar
- Sections
- 1
- Base
- 9AD
- Socket code
- B7G
- Base pins
- 7
- Nominal heater
- 6.3 V / 150 mA
Description
Sharp-cutoff pentode intended for low-level audio amplifier input stages in PA systems, recorders and audio equipment. Extracted from the supplied RCA Receiving Tube Manual excerpt.
Socket description
Miniature 7-contact
General specifications
Tube and section characteristics
Properties common to every published source and operating point.
Heater and base
- Base
- 9AD
- Socket code
- B7G
- Base pins
- 7
- Nominal heater voltage
- 6.3 V
- Nominal heater current
- 150 mA
- Parallel heater voltage
- -
- Parallel heater current
- -
- Series capable
- No
9AD - Terminal pinout
Electrical assignments shared by every tube using this base designation.
| Terminal | Section | Connection | Evidence |
|---|---|---|---|
| PIN1G1 | A | G1 — Control Grid Chart transcription; manufacturer confirmation pending | Unverified EIA Base Connections, printed page 131, 9AD |
| PIN3K | A | K — Cathode Source transcription; manufacturer confirmation pending | Unverified EIA Base Connections, printed page 131, 9AD |
| PIN4H | — | H — Heater Chart transcription; manufacturer confirmation pending | Unverified EIA Base Connections, printed page 131, 9AD |
| PIN5H | — | H — Heater Chart transcription; manufacturer confirmation pending | Unverified EIA Base Connections, printed page 131, 9AD |
| PIN7G2 | A | G2 — Screen Grid Chart transcription; manufacturer confirmation pending | Unverified EIA Base Connections, printed page 131, 9AD |
| PIN8P | A | P — Plate (Anode) Chart transcription; manufacturer confirmation pending | Unverified EIA Base Connections, printed page 131, 9AD |
| PIN9G3 | A | G3 — Suppressor Grid Chart transcription; manufacturer confirmation pending | Unverified EIA Base Connections, printed page 131, 9AD |
Section ratings
1 physical section, each with unique specifications.
Section 1
Pentode
X-ray radiationInterelectrode capacitances
- Plate resistance
- 2000000 Ω
- Transconductance
- 0.001 S
- Max plate voltage
- 330 V
- Max screen voltage
- 330 V
- Max plate dissipation
- 1.25 W
- Max screen dissipation
- 0.25 W
Published ratings and characteristics promoted where applicable; additional source-table values retained in TUBE_SECTION_PARAMETER.
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
1966 Tung Sol Electronic Tubes 3 of 4
Published operating points and test conditions from this source.
SECTION 1
Pentode
Other
Heater voltage
6.3 V
Heater current
150 mA
Maximum plate voltage
330 V
Maximum screen voltage
330 V
Maximum plate dissipation
1.25 W
Maximum screen dissipation
0.25 W
Characteristic
Plate voltage
250 V
PentodeConnection
Screen voltage
100 V
PentodeConnection
Grid 1 voltage
-3 V
PentodeConnection
Plate current
1.8 mA
PentodeConnection
Screen current
0.4 mA
PentodeConnection
Triode-connected plate resistance
137000 ohm
TriodeConnection
Triode-connected transconductance
1530 uS
TriodeConnection
Triode-connected amplification factor
21
TriodeConnection
Capacitance
Grid-to-plate capacitance maximum
0.11 pF
Input capacitance
2.7 pF
Output capacitance
2.4 pF
Data set 03
1971 RCA HB3 Binder 3 of 7
Published operating points and test conditions from this source.
SECTION 1
Pentode
Characteristics
Current at 6.3 volts — published value 1
6.3 V
Published datasheet value; multiple values on a source row represent separate source-table conditions or limits.
Current at 6.3 volts — published value 2
0.15 V
Published datasheet value; multiple values on a source row represent separate source-table conditions or limits.
grid No. 2, heater, and pins 2 and 6 — published value 1
2
Published datasheet value; multiple values on a source row represent separate source-table conditions or limits.
grid No. 2, heater, and pins 2 and 6 — published value 2
2
Published datasheet value; multiple values on a source row represent separate source-table conditions or limits.
grid No. 2, heater, and pins 2 and 6 — published value 3
6
Published datasheet value; multiple values on a source row represent separate source-table conditions or limits.
grid No. 2, heater, and pins 2 and 6 — published value 4
2.7
Published datasheet value; multiple values on a source row represent separate source-table conditions or limits.
grid No. 2, heater, and Gins 2 and 6 — published value 1
2
Published datasheet value; multiple values on a source row represent separate source-table conditions or limits.
grid No. 2, heater, and Gins 2 and 6 — published value 2
2
Published datasheet value; multiple values on a source row represent separate source-table conditions or limits.
grid No. 2, heater, and Gins 2 and 6 — published value 3
6
Published datasheet value; multiple values on a source row represent separate source-table conditions or limits.
grid No. 2, heater, and Gins 2 and 6 — published value 4
2.4
Published datasheet value; multiple values on a source row represent separate source-table conditions or limits.
Grid No.l to plate
1.4
Published datasheet value; multiple values on a source row represent separate source-table conditions or limits.
Grid No.l to cathode
1.4
Published datasheet value; multiple values on a source row represent separate source-table conditions or limits.
Plate to cathode
0.85
Published datasheet value; multiple values on a source row represent separate source-table conditions or limits.
Plate Voltage — published value 1
100 V
Published datasheet value; multiple values on a source row represent separate source-table conditions or limits.
Plate Voltage — published value 2
250 V
Published datasheet value; multiple values on a source row represent separate source-table conditions or limits.
Plate Voltage — published value 3
250 V
Published datasheet value; multiple values on a source row represent separate source-table conditions or limits.
Grid-No.2 Voltage
100 V
Published datasheet value; multiple values on a source row represent separate source-table conditions or limits.
Grid-No.l Voltage — published value 1
-3 V
Published datasheet value; multiple values on a source row represent separate source-table conditions or limits.
Grid-No.l Voltage — published value 2
-8 V
Published datasheet value; multiple values on a source row represent separate source-table conditions or limits.
Grid-No.l Voltage — published value 3
-3 V
Published datasheet value; multiple values on a source row represent separate source-table conditions or limits.
Transconductance — published value 1
1240
Published datasheet value; multiple values on a source row represent separate source-table conditions or limits.
Transconductance — published value 2
1530
Published datasheet value; multiple values on a source row represent separate source-table conditions or limits.
Transconductance — published value 3
1000
Published datasheet value; multiple values on a source row represent separate source-table conditions or limits.
Plate Current — published value 1
2.2 mA
Published datasheet value; multiple values on a source row represent separate source-table conditions or limits.
Plate Current — published value 2
5.5 mA
Published datasheet value; multiple values on a source row represent separate source-table conditions or limits.
Plate Current — published value 3
1.8 mA
Published datasheet value; multiple values on a source row represent separate source-table conditions or limits.
Grid-No.2 Current
0.4 mA
Published datasheet value; multiple values on a source row represent separate source-table conditions or limits.
Pin 1-Grid No.i — published value 1
1
Published datasheet value; multiple values on a source row represent separate source-table conditions or limits.
Pin 1-Grid No.i — published value 2
6
Published datasheet value; multiple values on a source row represent separate source-table conditions or limits.
tion
7
Published datasheet value; multiple values on a source row represent separate source-table conditions or limits.
P i n 3-Cathode — published value 1
3
Published datasheet value; multiple values on a source row represent separate source-table conditions or limits.
P i n 3-Cathode — published value 2
8
Published datasheet value; multiple values on a source row represent separate source-table conditions or limits.
Pin 4-Heater — published value 1
4
Published datasheet value; multiple values on a source row represent separate source-table conditions or limits.
Pin 4-Heater — published value 2
9
Published datasheet value; multiple values on a source row represent separate source-table conditions or limits.
Pin 5-Heater
5
Published datasheet value; multiple values on a source row represent separate source-table conditions or limits.
330 volts
330 V
Published datasheet value; multiple values on a source row represent separate source-table conditions or limits.
See RESISTANCE-COUPLED-AMPLIFIER CHARTS No. z6 6 No.2ry
6 A
Published datasheet value; multiple values on a source row represent separate source-table conditions or limits.
GRID-No.2 VOLTS=100
100 V
Published datasheet value; multiple values on a source row represent separate source-table conditions or limits.
PLATE (Ib) OR GRID—No.2 (I~2) MILLIAMPERES
2 mA
Published datasheet value; multiple values on a source row represent separate source-table conditions or limits.
PLATE VOLTS=250
250 V
Published datasheet value; multiple values on a source row represent separate source-table conditions or limits.
PLATE (Ib) OR GRID-No.2 (I~2) MILLIAMPERES
2 mA
Published datasheet value; multiple values on a source row represent separate source-table conditions or limits.
Other
Grid No.l to plate
0.11 mA
Published datasheet value; multiple values on a source row represent separate source-table conditions or limits.
PLATE VOLTAGE — published value 1
275 V
Published datasheet value; multiple values on a source row represent separate source-table conditions or limits.
PLATE VOLTAGE — published value 2
330 V
Published datasheet value; multiple values on a source row represent separate source-table conditions or limits.
SUPPLY VOLTAGE
330 V
Published datasheet value; multiple values on a source row represent separate source-table conditions or limits.
Negative-bias value — published value 1
55 V
Published datasheet value; multiple values on a source row represent separate source-table conditions or limits.
Negative-bias value — published value 2
55 V
Published datasheet value; multiple values on a source row represent separate source-table conditions or limits.
Positive-bias value — published value 1
0 V
Published datasheet value; multiple values on a source row represent separate source-table conditions or limits.
Positive-bias value — published value 2
0 V
Published datasheet value; multiple values on a source row represent separate source-table conditions or limits.
PLATE DISSIPATION — published value 1
1.7 mA
Published datasheet value; multiple values on a source row represent separate source-table conditions or limits.
PLATE DISSIPATION — published value 2
1.25 mA
Published datasheet value; multiple values on a source row represent separate source-table conditions or limits.
Grid-No.l-Circuit Resistance 2.2 max — published value 1
2.2 mA
Published datasheet value; multiple values on a source row represent separate source-table conditions or limits.
Grid-No.l-Circuit Resistance 2.2 max — published value 2
2.2 mA
Published datasheet value; multiple values on a source row represent separate source-table conditions or limits.
Data set 04
1975 RCA RC30
Published operating points and test conditions from this source.
SECTION 1
Pentode
Capacitance
Pentode grid-to-plate capacitance
0.11 pF
Max
Pentode input capacitance
2.7 pF
PentodeConnection
Pentode output capacitance
2.4 pF
PentodeConnection
Triode grid-to-plate capacitance
1.4 pF
TriodeConnection
Triode input capacitance
1.4 pF
TriodeConnection
Triode output capacitance
0.85 pF
TriodeConnection
Characteristic
Triode amplification factor
21
TriodeConnection
Triode plate resistance
17000 ohm
TriodeConnection
Triode transconductance
1530 uS
TriodeConnection
Pentode plate current
1.8 mA
PentodeConnection