Data set 01
1958 Brimar Radio Valve No 7
Published operating points and test conditions from this source.
SECTION 1
Pentode
Characteristic
Heater Voltage
6.3 V
Heater Current
750 mA
Application
VideoOutput
Power - Pentode (NOT beam) ·Pentode
6CH6
High-slope video-output power pentode for driving low-impedance, high-capacitance television loads.
Directly heatedCold cathodeCommon cathodeDissimilar
- Sections
- 1
- Base
- 9BA
- Socket code
- B9A
- Base pins
- 9
- Nominal heater
- 6.3 V / 750 mA
Description
High-slope video-output pentode for low-impedance, high-capacitance loads.
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
- 9BA
- Socket code
- B9A
- Base pins
- 9
- Nominal heater voltage
- 6.3 V
- Nominal heater current
- 750 mA
- Parallel heater voltage
- -
- Parallel heater current
- -
- Series capable
- No
9BA - 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
Pentode
X-ray radiationInterelectrode capacitances
- Plate resistance
- 50000 Ω
- Transconductance
- 0.011 S
- Max plate voltage
- 275 V
- Max screen voltage
- 275 V
- Max plate dissipation
- 12 W
- Max screen dissipation
- 2.5 W
Published source values promoted where applicable.
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
Pentode
Other
Plate voltage
250 V
ClassA
Screen-grid voltage
250 V
ClassA
Grid voltage
-4.5 V
ClassA
Plate current
40 mA
ClassA
Screen-grid current
6 mA
ClassA
Capacitance
Input capacitance
4 pF
Output capacitance
5 pF
Grid-to-plate capacitance
0.25 pF