Data set 01
1950 Sylvania
Published operating points and test conditions from this source.
SECTION 1
Beam Power
Other
Maximum signal power output
4.5 W
ClassA
Power - Beam (NOT sweep) ·BeamPower
7695
Beam-power transmitting tube intended for RF amplifier and communications service, providing useful radio-frequency output from a compact power-tube construction.
Directly heatedCold cathodeCommon cathodeDissimilar
- Sections
- 1
- Base
- -
- Socket code
- B9A
- Base pins
- -
- Nominal heater
- 6.3 V / 1.2 A
Description
High-sensitivity beam power pentode for low-voltage audio output service.
Socket description
Small-button Noval 9-contact
General specifications
Tube and section characteristics
Properties common to every published source and operating point.
Heater and base
- Base
- -
- Socket code
- B9A
- Base pins
- -
- Nominal heater voltage
- 6.3 V
- Nominal heater current
- 1.2 A
- 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
Beam Power
X-ray radiationInterelectrode capacitances
- Plate resistance
- 7000 Ω
- Transconductance
- 0.011 S
- Max plate voltage
- 150 V
- Max screen voltage
- 150 V
- Max plate dissipation
- 16 W
- Max screen dissipation
- 2.5 W
Published source values promoted where applicable; additional source values retained as parameters.
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
1965 Sylvania Electronic Tubes Vol3
Published operating points and test conditions from this source.
SECTION 1
Beam Power
Characteristics
Heater voltage
50 V
Heater current
150 mA
Transconductance
11000 uS
Plate resistance
7000 ohm
Other
Plate voltage maximum
150 V
Grid2 voltage maximum
150 V
Plate dissipation maximum
16 W
Grid2 dissipation maximum
2.5 W
Class-A plate voltage
140 V
ClassA
Class-A grid2 voltage
140 V
ClassA
Class-A cathode resistor
100 ohm
ClassA
Class-A load resistance
1100 ohm
ClassA
Class-A output power
4.5 W
ClassA
Class-A THD
11 %
ClassA
Class-AB push-pull plate voltage
140 V
ClassAB,PushPull
Class-AB push-pull load plate-to-plate
1500 ohm
ClassAB,PushPull
Class-AB push-pull output power
10 W
ClassAB,PushPull
Transformerless single-ended push-pull supply voltage
280 V
ClassA,PushPull
Transformerless power output
5 W
ClassA,PushPull
Application
Application
Low-voltage audio power output