Data set 01
1958 Compagnie General
Published operating points and test conditions from this source.
SECTION 1
Triode
Characteristic
Heater Voltage
6.3 V
Heater Current
450 mA
Voltage - Dual Triode (similar high frequency) ·Triode-Triode
6J6W
Ruggedized common-cathode twin triode for professional and military high-frequency service, with documented UHF oscillator operation and robust construction.
Directly heatedCold cathodeCommon cathodeDissimilar
- Sections
- 2
- Base
- 7BF
- Socket code
- B7G
- Base pins
- 7
- Nominal heater
- 6.3 V / 450 mA
Description
Ruggedized common-cathode double triode for professional and military 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
- 7BF
- Socket code
- B7G
- Base pins
- 7
- Nominal heater voltage
- 6.3 V
- Nominal heater current
- 450 mA
- Parallel heater voltage
- -
- Parallel heater current
- -
- Series capable
- No
7BF - Terminal pinout
Electrical assignments shared by every tube using this base designation.
| Terminal | Section | Connection | Evidence |
|---|---|---|---|
| PIN12P | B | P — Plate (Anode) EIA chart transcription; manufacturer confirmation pending | Unverified EIA Base Connections, printed page 128, 7BF |
| PIN21P | A | P — Plate (Anode) EIA chart transcription; manufacturer confirmation pending | Unverified EIA Base Connections, printed page 128, 7BF |
| PIN3H | — | H — Heater EIA chart transcription; manufacturer confirmation pending | Unverified EIA Base Connections, printed page 128, 7BF |
| PIN4H | — | H — Heater EIA chart transcription; manufacturer confirmation pending | Unverified EIA Base Connections, printed page 128, 7BF |
| PIN51G1 | A | G1 — Control Grid EIA chart transcription; manufacturer confirmation pending | Unverified EIA Base Connections, printed page 128, 7BF |
| PIN62G1 | B | G1 — Control Grid EIA chart transcription; manufacturer confirmation pending | Unverified EIA Base Connections, printed page 128, 7BF |
| PIN7K | A | K — Cathode EIA chart transcription; manufacturer confirmation pending | Unverified EIA Base Connections, printed page 128, 7BF |
Section ratings
2 physical sections, each with unique specifications.
Section 1
Triode
X-ray radiationInterelectrode capacitances
- Plate resistance
- 7100 Ω
- Transconductance
- 0.0053 S
- Amplification factor
- 38
- Max plate voltage
- 300 V
Published maximum ratings, characteristics, operating conditions and capacitances reviewed.
Section 2
Triode
X-ray radiationInterelectrode capacitances
- Plate resistance
- 7100 Ω
- Transconductance
- 0.0053 S
- Amplification factor
- 38
- Max plate voltage
- 300 V
Second physical triode section; electrically identical twin 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 1
Triode
Other
Maximum plate voltage
300 V
Published handbook rating
Plate voltage
100 V
ClassA
Control-grid bias
8.5 V
ClassA
Characteristic
Plate resistance
7100 ohm
Published handbook characteristic
Transconductance
5300 µS
Published handbook characteristic
Amplification factor
38
Published handbook characteristic
Heater voltage
6.3 V
Published heater rating
Heater current
450 mA
Published heater rating
Capacitance
Input capacitance
2.6 pF
Published capacitance column
Output capacitance
1.6 pF
Published capacitance column
Grid-to-plate capacitance
1.5 pF
Published capacitance column
Data set 03
195X Raytheon Special Purpose Tubes
Published operating points and test conditions from this source.
SECTION 1
Triode
Other
Cathode resistor
50 Ω
UHFOscillator;EachSection
Plate voltage
100 V
UHFOscillator;EachSection
Plate current
8.5 mA
UHFOscillator;EachSection
Characteristic
Plate resistance
7170 Ω
EachSection
Transconductance
5300 µS
EachSection
Amplification factor
38
EachSection