Data set 01
1948 Brimar Radio Valve Manual
Published operating points and test conditions from this source.
SECTION 1
Triode
Characteristic
Heater Voltage
6.3 V
Heater Current
800 mA
Power - Triode ·Triode-Triode
6N7GT
GT-envelope dual triode designed for Class A or Class B amplifier service. Its identical sections can operate together in push-pull audio output, with published Class B conditions providing approximately 10 W.
Directly heatedCold cathodeCommon cathodeDissimilar
- Sections
- 2
- Base
- 8B
- Socket code
- IO
- Base pins
- 8
- Nominal heater
- 6.3 V / 800 mA
Description
GT-envelope double triode for Class A or Class B amplifier service.
Socket description
International Octal
General specifications
Tube and section characteristics
Properties common to every published source and operating point.
Heater and base
- Base
- 8B
- Socket code
- IO
- Base pins
- 8
- Nominal heater voltage
- 6.3 V
- Nominal heater current
- 800 mA
- Parallel heater voltage
- -
- Parallel heater current
- -
- Series capable
- No
8B - Terminal pinout
Electrical assignments shared by every tube using this base designation.
No verified pinout is recorded for this base designation.
Section ratings
2 physical sections, each with unique specifications.
Section 1
Triode
X-ray radiationInterelectrode capacitances
- Plate resistance
- 11000 Ω
- Transconductance
- 0.0032 S
- Amplification factor
- 35
- Max plate voltage
- 300 V
- Max plate dissipation
- 5.5 W
Promoted from printed maximum-rating/characteristic columns; additional published operating points and capacitances retained as parameters.
Section 2
Triode
X-ray radiationInterelectrode capacitances
- Plate resistance
- 11000 Ω
- Transconductance
- 0.0032 S
- Amplification factor
- 35
- Max plate voltage
- 300 V
- Max plate dissipation
- 5.5 W
Second identical physical triode section; added to align physical rows with SectionCount.
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
1958 Brimar Radio Valve No 7
Published operating points and test conditions from this source.
SECTION 1
Triode
Other
Power output Class B both sections
10 W
ClassB
Data set 03
195X General Electric Essential Characteristics
Published operating points and test conditions from this source.
SECTION 1
Triode
Other
Plate voltage
300 V
ClassB PushPull TwoTubes
Control-grid voltage
0 V
ClassB PushPull TwoTubes
Plate current
35 mA
ClassB PushPull TwoTubes
Load resistance
8000 Ω
ClassB PushPull TwoTubes
Power output
10 W
ClassB PushPull TwoTubes
Plate voltage
294 V
ClassA Parallel
Control-grid voltage
-6 V
ClassA Parallel
Plate current
7 mA
ClassA Parallel
Characteristic
Plate resistance
11000 Ω
ClassA Parallel
Transconductance
3200 µS
ClassA Parallel
Amplification factor
35
ClassA Parallel