Data set 01
1958 Brimar Radio Valve No 7
Published operating points and test conditions from this source.
SECTION 1
Triode
Characteristic
Heater Voltage
6.3 V
Heater Current
150 mA
MaximumOperatingFrequency
150 MHz
OscillatorOrPowerAmplifier
Power - Triode Single (under 10W) ·Triode
6C4
Power triode intended for radio-frequency amplifier and oscillator service. Manufacturer documentation emphasizes RF power operation and transmitting applications rather than ordinary receiving-tube voltage amplification.
Directly heatedCold cathodeCommon cathodeDissimilar
- Sections
- 1
- Base
- 6BG
- Socket code
- B7G
- Base pins
- 7
- Nominal heater
- 6.3 V / 150 mA
Description
Miniature power triode used as a cascode amplifier in VHF color television and other RF service.
Socket description
Miniature 7-contact
General specifications
Tube and section characteristics
Properties common to every published source and operating point.
Heater and base
- Base
- 6BG
- 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
6BG - Terminal pinout
Electrical assignments shared by every tube using this base designation.
| Terminal | Section | Connection | Evidence |
|---|---|---|---|
| PIN1P | A | P — Plate (Anode) Original EIA label P; independent manufacturer confirmation pending | Unverified EIA Base Connections, printed page 127, 6BG |
| PIN2IC | — | IC Original EIA label IC; independent manufacturer confirmation pending | Unverified EIA Base Connections, printed page 127, 6BG |
| PIN3H | — | H — Heater Chart transcription; manufacturer cross-check pending | Unverified EIA Base Connections, printed page 127, 6BG |
| PIN4H | — | H — Heater Chart transcription; manufacturer cross-check pending | Unverified EIA Base Connections, printed page 127, 6BG |
| PIN5P | A | P — Plate (Anode) Chart transcription; manufacturer cross-check pending | Unverified EIA Base Connections, printed page 127, 6BG |
| PIN6G1 | A | G1 — Control Grid Chart transcription; manufacturer cross-check pending | Unverified EIA Base Connections, printed page 127, 6BG |
| PIN7K | A | K — Cathode Chart transcription; manufacturer cross-check pending | Unverified EIA Base Connections, printed page 127, 6BG |
Section ratings
1 physical section, each with unique specifications.
Section 1
Triode
X-ray radiationInterelectrode capacitances
- Plate resistance
- 7700 Ω
- Transconductance
- 0.0022 S
- Amplification factor
- 17
- Max plate voltage
- 300 V
- Max plate dissipation
- 5 W
- Max cathode current
- 25 mA
Published characteristics include alternate operating point
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 1
Triode
Other
Maximum plate voltage
300 V
Published handbook rating
Plate voltage
250 V
ClassA
Control-grid bias
8.5 V
ClassA
Plate current
10.5 mA
ClassA
Characteristic
Plate resistance
7700 ohm
Published handbook characteristic
Transconductance
2200 µS
Published handbook characteristic
Amplification factor
17
Published handbook characteristic
Heater voltage
6.3 V
Published heater rating
Heater current
150 mA
Published heater rating
Capacitance
Input capacitance
1.8 pF
Published capacitance column
Output capacitance
1.3 pF
Published capacitance column
Grid-to-plate capacitance
1.6 pF
Published capacitance column
Data set 03
1961 Ferranti Technical Handbook
Published operating points and test conditions from this source.
SECTION 1
Triode
Other
Plate voltage
100 V
ClassA
Control-grid voltage
0 V
ClassA
Plate current
11.8 mA
ClassA
Plate voltage
250 V
ClassA
Control-grid voltage
-8.5 V
ClassA
Plate current
10.5 mA
ClassA
Plate voltage
300 V
ClassC;RFAmplifier;Telegraphy
Plate current
25 mA
ClassC;RFAmplifier;Telegraphy
Control-grid voltage
-27 V
ClassC;RFAmplifier;Telegraphy
Grid current
7 mA
ClassC;RFAmplifier;Telegraphy
Drive power
0.35 W
ClassC;RFAmplifier;Telegraphy
RF output power
5.5 W
ClassC;RFAmplifier;Telegraphy
Characteristics
Transconductance
3100 uS
ClassA;Va=100V
Plate resistance
6250 Ohm
ClassA;Va=100V
Amplification factor
19.5 ratio
ClassA;Va=100V
Transconductance
2200 uS
ClassA;Va=250V
Plate resistance
7700 Ohm
ClassA;Va=250V
Amplification factor
17 ratio
ClassA;Va=250V
Capacitance
Input capacitance
1.8 pF
Output capacitance
3 pF
Data set 04
1961 Tung Sol
Published operating points and test conditions from this source.
SECTION 1
Triode
Other
Heater voltage
6.3 V
Heater current
150 mA
Plate voltage
300300 V
Typical operating conditions
Plate current
25 mA
Typical operating conditions
Data set 05
1966 Tung Sol Electronic Tubes 1 of 4
Published operating points and test conditions from this source.
SECTION 1
Triode
Capacitance
GRID TO PLATE: (G TO Pj
1.6 µµf
Capacitances | GRID TO PLATE: (G TO Pj 1.4 1.6 µµf
OUTPUT: P TO (H}KJ
1.3 µµf
Capacitances | OUTPUT: P TO (H}KJ 2.5 1.3 µµf
Characteristic
HEATER VOLTAGE
6.3 V
ClassA | HEATER VOLTAGE 6.3 VOLTS
F fXED BIAS OPERATION
0.25 Mohm
ClassA | F fXED BIAS OPERATION 0.25 0.25 MEGOHM
HEATER VOLTAGE
6.3 V
ClassA | HEATER VOLTAGE 6.3 6.3 VOLTS
HEATER CURRENT
150 mA
ClassA | HEATER CURRENT 0.15 0.15 AMP.
GRID VOLTA GE B O
-8.5 V
ClassA | GRID VOLTA GE B O -8.5 VOLTS
PLATE CURRENT
10.5 mA
ClassA | PLATE CURRENT 11.8 10.5 MA.
GRID VOLTAGE FOR i b
-25 V
ClassA | GRID VOLTAGE FOR i b = 10 (.LA. (APPROX.) -lO -25 VOLTS
HEATER CURRENT
150 mA
ClassC | HEATER CURRENT 0.15 AMP.
PLATE VOLTAGE
300 V
ClassC | PLATE VOLTAGE 300 voLTs
GRID VOLTAGE —
27 V
ClassC | GRID VOLTAGE —27 VOLTS
PLATE CURRENT
25 mA
ClassC | PLATE CURRENT 25 MA.
GRID CURRENT (APPROX.)
7 mA
ClassC | GRID CURRENT (APPROX.) 7 MA.
GRID DRIVING POWER (APPRO%.)
0.35 W
ClassC | GRID DRIVING POWER (APPRO%.) 0.35 WATT
C APPROXIMATELY
150 MHz
ClassC | C APPROXIMATELY 2.5 MATTS OUTPUT GAM BE OBTAINED WHEN THE 6C4 15 USED AT 150 MEGACYCLES AS AX
O S[ILI ATOR MITM A GRID RESISTOR OF
10 ohm
ClassC | O S[ILI ATOR MITM A GRID RESISTOR OF 10.000 OHMS AND WITH MA %INUY RATED IMPUT.
GAIN MEASURED AT E
2 V
ClassC | GAIN MEASURED AT E = 2.0 VOLTS RMS OUTPUT.
Other
MAXIMUM PLATE DISSIPATION
5 W
ClassA | MAXIMUM PLATE DISSIPATION 3.5 5 WATTS
MAXIMUM DC PLATE CURRENT
25 mA
ClassA | MAXIMUM DC PLATE CURRENT --- 25 MA.
Data set 06
1971 RCA HB3 Binder 4 of 7
Published operating points and test conditions from this source.
SECTION 1
Triode
Capacitance
Grid to plate
1.6 pF
Grid to cathode and heater
1.8 pF
Plate to cathode and heater
1.3 pF
Characteristics
Plate Voltage
100 V
Published table column 1 of 2
Plate Voltage
250 V
Published table column 2 of 2
Grid Voltage
0 V
Published table column 1 of 2
Grid Voltage
8.5 V
Published table column 2 of 2
Plate Resistance (Approx.)
6250 Ω
Published table column 1 of 2
Plate Resistance (Approx.)
7700 Ω
Published table column 2 of 2
Transconductance
3100 µS
Published table column 1 of 2
Transconductance
2200 µS
Published table column 2 of 2
Plate Current
11.8 mA
Published table column 1 of 2
Plate Current
10.5 mA
Published table column 2 of 2
For fixed-bias operation
0 MΩ
Published table column 1 of 2
For fixed-bias operation
25 MΩ
Published table column 2 of 2
For cathode-bias operation
1 MΩ
Other
DC PLATE VOLTAGE
300 V
DC GRID VOLTAGE
-50 V
DC PLATE CURP.ENT
25 mA
DC GRID CURRENT
8 mA
PLATE DISSIPATION
5 W
Data set 07
1975 RCA RC30
Published operating points and test conditions from this source.
SECTION 1
Triode
Characteristic
Heater Voltage (ac/dc)
6.3 V
Published in approved 6C4 target datasheet entry; Section1
Heater Current
150 mA
Published in approved 6C4 target datasheet entry; Section1
Grid to Plate 1.6
1.4 pF
Published in approved 6C4 target datasheet entry; Section1
Grid to Cathode and Heater 1.8
1.8 pF
Published in approved 6C4 target datasheet entry; Section1
Plate to Cathode and Heater 1.3
2.5 pF
Published in approved 6C4 target datasheet entry; Section1
Other
Plate Voltage 100
250 V
Published in approved 6C4 target datasheet entry; Section1
Grid Voltage* 0
-8.5 V
Published in approved 6C4 target datasheet entry; Section1
Plate Resistance (Approx.) 6250
7700 Ω
Published in approved 6C4 target datasheet entry; Section1
Plate Current 11.8
10.5 mA
Published in approved 6C4 target datasheet entry; Section1
Grid Voltage (Approx.) for plate current of 10 nA —10
-25 V
Published in approved 6C4 target datasheet entry; Section1
For fixed bias operation
0.25 MΩ
Published in approved 6C4 target datasheet entry; Section1
For cathode-bias operation
1 MΩ
Published in approved 6C4 target datasheet entry; Section1
Plate Current
25 mA
Published in approved 6C4 target datasheet entry; Section1
TYPICAL OPERATION AT FREQUENCIES UP TO
50 MHz
Published in approved 6C4 target datasheet entry; Section1
Plate Voltage
-300 V
Published in approved 6C4 target datasheet entry; Section1
Grid Voltage
27 V
Published in approved 6C4 target datasheet entry; Section1
Plate Current
25 mA
Published in approved 6C4 target datasheet entry; Section1
Grid Current (Approx.)
7 mA
Published in approved 6C4 target datasheet entry; Section1
Driving Power (Approx.)
0.35 W
Published in approved 6C4 target datasheet entry; Section1
Power Output (Approx.)*
5.5 W
Published in approved 6C4 target datasheet entry; Section1