Data set 01
1950 Sylvania
Published operating points and test conditions from this source.
SECTION 1
Beam Power
Characteristic
HeaterOrFilamentVoltage
34 V
HeaterOrFilamentCurrent
100 mA
Other
Maximum Signal Power Output
1.4 W
ClassA
Power - Beam Single (NOT sweep) (under 10W) ·BeamPower
34GD5A
Improved beam-power audio-output tube for low-voltage receiver service, intended for Class-A power amplification in series-heater consumer equipment.
Directly heatedCold cathodeCommon cathodeDissimilar
- Sections
- 1
- Base
- 7-pin miniature
- Socket code
- B7G
- Base pins
- 7
- Nominal heater
- 34 V / 100 mA
Description
Beam power pentode intended for audio output amplifier service in AC/DC radio receivers. It uses a nominal 34 V, 0.1 A heater. The supplied datasheet was used for ratings, characteristics, and typical operating data.
Socket description
Miniature 7-contact
General specifications
Tube and section characteristics
Properties common to every published source and operating point.
Heater and base
- Base
- 7-pin miniature
- Socket code
- B7G
- Base pins
- 7
- Nominal heater voltage
- 34 V
- Nominal heater current
- 100 mA
- Parallel heater voltage
- -
- Parallel heater current
- -
- Series capable
- No
7-pin miniature - 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
Beam Power
X-ray radiationInterelectrode capacitances
- Plate resistance
- 23000 Ω
- Transconductance
- 0.0057 S
- Max plate voltage
- 150 V
- Max screen voltage
- 130 V
- Max plate dissipation
- 5 W
- Max screen dissipation
- 1.1 W
Published promoted fields populated by semantic section ownership.
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
1961 Tung Sol
Published operating points and test conditions from this source.
SECTION 1
Beam Power
Characteristic
Heater Warmup Time
20 s
ControlledWarmup
Data set 03
1966 Tung Sol Electronic Tubes 3 of 4
Published operating points and test conditions from this source.
SECTION 1
Beam Power
Characteristic
Plate Resistance
13000 ohm
Published datasheet value
Transconductance
5700 µS
Published datasheet value
InterelectrodeCapacitanceDataPublished
1 boolean
See supplied datasheet capacitance table
Other
MaxPlateVoltage
150 V
Published datasheet value
MaxScreenVoltage
130 V
Published datasheet value
MaxPlateDissipation
5 W
Published datasheet value
MaxScreenDissipation
1.1 W
Published datasheet value
Heater Voltage
34 V
Nominal heater rating
Heater Current
100 mA
Nominal heater rating
Data set 04
1971 RCA HB3 Binder 5 of 7
Published operating points and test conditions from this source.
SECTION 1
Beam Power
Other
Maximum Plate Voltage
150 V
Maximum Screen Voltage
130 V
Plate Dissipation
5 W
Screen Input
1.1 W
Plate Voltage
110 V
Screen Voltage
110 V
Characteristics
Plate Resistance
23000 Ω
Transconductance
5700 µS