Data set 01
1961 Tung Sol
Published operating points and test conditions from this source.
SECTION 1
Triode
Characteristic
Transconductance
13000 uS
Typical
Construction
FrameGridConstruction
1
Voltage - Triode (single high frequency) ·Triode
2FY5
Remote-cutoff frame-grid triode for low-noise VHF tuner service.
Directly heatedCold cathodeCommon cathodeDissimilar
- Sections
- 1
- Base
- -
- Socket code
- B7G
- Base pins
- 7
- Nominal heater
- 2.35 V / 600 mA
Description
Remote-cutoff frame-grid triode for low-noise VHF tuner 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
- -
- Socket code
- B7G
- Base pins
- 7
- Nominal heater voltage
- 2.35 V
- Nominal heater current
- 600 mA
- Parallel heater voltage
- -
- Parallel heater current
- -
- Series capable
- No
Terminal pinout
Electrical assignments shared by every tube using this base designation.
No verified pinout is recorded for this base designation.
Section ratings
1 physical section, each with unique specifications.
Section 1
Triode
X-ray radiationInterelectrode capacitances
- Transconductance
- 0.013 S
- Amplification factor
- 70
- Max plate voltage
- 550 V
- Max plate dissipation
- 2.2 W
- Rectifier max heater-cathode voltage
- 200 V
Published promoted fields populated from Maximum Ratings / Characteristics / Typical Operation headings.
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
138 V
VHF tuner
Grid voltage
-4.5 V
VHF tuner
Plate current
11 mA
VHF tuner
Characteristic
Amplification factor
70
Transconductance
13000 uS
Data set 03
1966 Tung Sol Electronic Tubes 1 of 4
Published operating points and test conditions from this source.
SECTION 1
Triode
Characteristic
GRID TO HEATER (MAX.)
0.28 ΜΜF
| GRID TO HEATER (MAX.) 0.28 0.28 µµf
GRID TO CATHODE
3.2 ΜΜF
| GRID TO CATHODE 3.2 3.2 µµf
PLATE TO GRID
9.48 ΜΜF
| PLATE TO GRID. 0.50 9.48 µµf
Other
MAXIMUM PLATE VOLTAGE (ZERO PLATE CURRENT)
550 V
Maximum Ratings | MAXIMUM PLATE VOLTAGE (ZERO PLATE CURRENT) 550 VOLTS
MAXIMUM PLATE DISSIPATION
2.2 W
Maximum Ratings | MAXIMUM PLATE DISSIPATION 2.2 WATTS
MAXIMUM GRID CIRCUIT RESISTANCE
1 Mohm
Maximum Ratings | MAXIMUM GRID CIRCUIT RESISTANCE 1 MEGOHM
HEATER VOLTAGE ?~
4 V
Maximum Ratings | HEATER VOLTAGE ?~4 VOLTS
HEATER CURRENT
600 mA
Maximum Ratings | HEATER CURRENT 0.60 AMP.
PLATE VOLTAGE
135 V
Maximum Ratings | PLATE VOLTAGE 135 135 135 135 VOLTS
NEGATIVE GRID BIAS
4.5 V
Maximum Ratings | NEGATIVE GRID BIAS 1 3.1 5 4.5 VOLTS
PLATE CURRENT
1 mA
Maximum Ratings | PLATE CURRENT 11 O.1 MA.