Data set 01
1961 Tung Sol
Published operating points and test conditions from this source.
SECTION 1
Triode
Other
Heater voltage
6.3 V
Voltage - Triode (single high frequency) ·Triode
6GK5
High-mu frame-grid miniature triode used as a grounded-cathode RF amplifier in VHF television tuners.
Directly heatedCold cathodeCommon cathodeDissimilar
- Sections
- 1
- Base
- 7FP
- Socket code
- B7G
- Base pins
- 7
- Nominal heater
- 6.3 V / 180 mA
Description
High-mu frame-grid miniature triode used as a grounded-cathode RF amplifier in VHF television tuners.
Socket description
Miniature 7-contact
General specifications
Tube and section characteristics
Properties common to every published source and operating point.
Heater and base
- Base
- 7FP
- Socket code
- B7G
- Base pins
- 7
- Nominal heater voltage
- 6.3 V
- Nominal heater current
- 180 mA
- Parallel heater voltage
- -
- Parallel heater current
- -
- Series capable
- No
7FP - Terminal pinout
Electrical assignments shared by every tube using this base designation.
| Terminal | Section | Connection | Evidence |
|---|---|---|---|
| PIN1K | A | K — Cathode EIA transcription; manufacturer confirmation pending | Unverified EIA Base Connections, printed page 129, 7FP |
| PIN2G1 | A | G1 — Control Grid EIA transcription; manufacturer confirmation pending | Unverified EIA Base Connections, printed page 129, 7FP |
| PIN3H | — | H — Heater EIA transcription; manufacturer confirmation pending | Unverified EIA Base Connections, printed page 129, 7FP |
| PIN4H | — | H — Heater EIA transcription; manufacturer confirmation pending | Unverified EIA Base Connections, printed page 129, 7FP |
| PIN5P | A | P — Plate (Anode) EIA transcription; manufacturer confirmation pending | Unverified EIA Base Connections, printed page 129, 7FP |
| PIN6IS | A | IS — Internal Screen EIA transcription; manufacturer confirmation pending | Unverified EIA Base Connections, printed page 129, 7FP |
| PIN7K | A | K — Cathode EIA transcription; manufacturer confirmation pending | Unverified EIA Base Connections, printed page 129, 7FP |
Section ratings
1 physical section, each with unique specifications.
Section 1
Triode
X-ray radiationInterelectrode capacitances
- Plate resistance
- 5400 Ω
- Transconductance
- 0.015 S
- Amplification factor
- 78
- Max plate voltage
- 200 V
- Max plate dissipation
- 2.5 W
- Max cathode current
- 22 mA
Published typical operating conditions, UHF/deflection ratings, and descriptive application reviewed.
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
1963 Amperex Condensed
Published operating points and test conditions from this source.
SECTION 1
Triode
Other
Plate voltage
135 V
Published table
Control-grid bias
-1 V
Published table
Plate current
11 mA
Published table
Characteristic
Transconductance
13000 µS
Published table
Amplification factor
70
Published table
Plate resistance
5200 ohm
Published table
Heater voltage
6.3 V
Published heater rating
Heater current
180 mA
Published heater rating
Data set 03
1965 Sylvania Electronic Tubes Vol3
Published operating points and test conditions from this source.
SECTION 1
Triode
Other
Plate voltage
135 V
Grid voltage
-1 V
Plate current
11.5 mA
Characteristics
Plate resistance
5400 Ohm
Transconductance
15000 uS
Amplification factor
78 ratio
Hot input resistance
275 Ohm
Noise figure
4.7 dB
Capacitance
Hot input capacitance
11.2 pF
Data set 04
1966 Tung Sol Electronic Tubes 2 of 4
Published operating points and test conditions from this source.
SECTION 1
Triode
Capacitance
Grid-to-plate capacitance
0.52 pF
Input capacitance
5 pF
Output capacitance
3.5 pF
Heater-to-cathode capacitance
2.5 pF
Hot input capacitance at 200 MHz
11.2 pF
GroundedPlate
Other
Plate voltage
135 V
ClassA
Grid voltage
-1 V
ClassA
Plate current
11.5 mA
ClassA
Noise figure at 200 MHz
4.7 dB
OptimizedNeutralizedRFStage
Characteristic
Hot input resistance at 200 MHz
275 ohm
GroundedPlate
Data set 05
1968 General Electric Co
Published operating points and test conditions from this source.
SECTION 1
Triode
Other
Typical Plate Voltage
135 V
ClassA
TypicalGridVoltage
-1 V
ClassA
NoiseFigureAt200MHz
4.7 dB
200MHz
Characteristic
Typical Plate Current
11.5 mA
ClassA
Data set 06
1971 RCA HB3 Binder 5 of 7
Published operating points and test conditions from this source.
SECTION 1
Triode
Other
Heater voltage
6.3 V
Heater current
600 mA
Plate voltage
135 V
ClassA
Grid voltage
-1 V
ClassA
Plate current
11.5 mA
ClassA
Maximum plate voltage
200 V
Maximum plate dissipation
2.5 W
Maximum cathode current
22 mA
Noise figure
4.7 dB
200MHz
Characteristic
Transconductance
13500 uS
ClassA
Amplification factor
75
ClassA
Plate resistance
5400 ohm
ClassA
Hot input resistance
275 ohm
200MHz
Capacitance
Hot input capacitance
11.2 pF
200MHz
Data set 07
1975 RCA RC30
Published operating points and test conditions from this source.
SECTION 1
Triode
Other
Heater Voltage (ac/dc) 2.3 2.8 4
6.3 V
Published in approved 2GK5 target datasheet entry; Section1
Heater Current 0.6 0.45 0.3
180 mA
Published in approved 2GK5 target datasheet entry; Section1
Negative-bias value
50 V
Published in approved 2GK5 target datasheet entry; Section1
Positive-bias value
0 V
Published in approved 2GK5 target datasheet entry; Section1
Average Cathode Current
22 mA
Published in approved 2GK5 target datasheet entry; Section1
Plate Dissipation
2.5 W
Published in approved 2GK5 target datasheet entry; Section1
Plate Voltage
135 V
Published in approved 2GK5 target datasheet entry; Section1
Grid Voltage
-1 V
Published in approved 2GK5 target datasheet entry; Section1
Plate Resistance (Approx.)
5400 Ω
Published in approved 2GK5 target datasheet entry; Section1
Transconductan'*.e
15000 µS
Published in approved 2GK5 target datasheet entry; Section1
Plate Current
11.5 mA
Published in approved 2GK5 target datasheet entry; Section1
Grid-Circuit Resistance, for cathode-bias operation
1 MΩ
Published in approved 2GK5 target datasheet entry; Section1
• Measured at
200 MHz
Published in approved 2GK5 target datasheet entry; Section1
f For a neutralized triode amplifier at a frequency of
200 MHz
Published in approved 2GK5 target datasheet entry; Section1
Heater Voltage (ac/dc) 6.3 10
16 V
Published in approved 2GK5 target datasheet entry; Section1
Heater Current 0.76 0.45
300 mA
Published in approved 2GK5 target datasheet entry; Section1
11
11 seconds
Published in approved 2GK5 target datasheet entry; Section1
Plate Supply Voltage
605 V
Published in approved 2GK5 target datasheet entry; Section1
Plate Voltage
330 V
Published in approved 2GK5 target datasheet entry; Section1
Grid-No.2 Supply Voltage
605 V
Published in approved 2GK5 target datasheet entry; Section1
Grid-No.2 (Screen-Grid) Voltage
330 V
Published in approved 2GK5 target datasheet entry; Section1
Grid-No.l (Control-Grid) Voltage, Negative-bias value
100 V
Published in approved 2GK5 target datasheet entry; Section1
Cathode Current
65 mA
Published in approved 2GK5 target datasheet entry; Section1
Plate Dissipation
13.2 W
Published in approved 2GK5 target datasheet entry; Section1
Grid-No.2 Input, Peak
4 W
Published in approved 2GK5 target datasheet entry; Section1
Grid-No.2 Input, Average
2 W
Published in approved 2GK5 target datasheet entry; Section1
Plate Supply Voltage
250 V
Published in approved 2GK5 target datasheet entry; Section1
Grid-No.2 Supply Voltage
250 V
Published in approved 2GK5 target datasheet entry; Section1
Cathode-Bias Resistor
135 Ω
Published in approved 2GK5 target datasheet entry; Section1
Plate Resistance (Approx.)
38000 Ω
Published in approved 2GK5 target datasheet entry; Section1
Transconductance
11300 µS
Published in approved 2GK5 target datasheet entry; Section1
Peak AF Grid-No.l Voltage
7.3 V
Published in approved 2GK5 target datasheet entry; Section1
Zero-Signal Plate Current
48 mA
Published in approved 2GK5 target datasheet entry; Section1
Maximum-Signal Plate Current
50.6 mA
Published in approved 2GK5 target datasheet entry; Section1
Zero-Signal Grid-No.2 Current
5.5 mA
Published in approved 2GK5 target datasheet entry; Section1
Maximum-Signal Grid-No.2 Current
10 mA
Published in approved 2GK5 target datasheet entry; Section1
Effective Load Resistance
5200 Ω
Published in approved 2GK5 target datasheet entry; Section1
Capacitance
Grid to Plate
0.62 pF
Published in approved 2GK5 target datasheet entry; Section1
Grid to Cathode, Heater, and Internal Shield
5 pF
Published in approved 2GK5 target datasheet entry; Section1
Plate to Cathode, Heater, and Internal Shield
3.5 pF
Published in approved 2GK5 target datasheet entry; Section1
Internal Shield
10 pF
Published in approved 2GK5 target datasheet entry; Section1
Internal Shield
7 pF
Published in approved 2GK5 target datasheet entry; Section1
Characteristic
Input Resistance*
275 Ω
Published in approved 2GK5 target datasheet entry; Section1
Input Capacitance*
11.2 pF
Published in approved 2GK5 target datasheet entry; Section1
Grid Voltage (Approx.) for transconductance of
1500 µS
Published in approved 2GK5 target datasheet entry; Section1
Grid Voltage (Approx.) for transconductance of 1500 /imhos
-2.5 V
Published in approved 2GK5 target datasheet entry; Section1