Data set 01
1959 Telefunken
Published operating points and test conditions from this source.
SECTION 1
Triode
Application
Application
Oscillator / preamplifier
SECTION 2
Pentode
Application
Application
Vertical-deflection output
Power - TV Vertical Output ·Pentode-Triode
ECL805
Combination triode-pentode power tube designed primarily for television vertical/frame-deflection output service.
Directly heatedCold cathodeCommon cathodeDissimilar
- Sections
- 2
- Base
- -
- Socket code
- B9A
- Base pins
- 9
- Nominal heater
- 6.3 V / 875 mA
Description
Triode-pentode for television vertical-deflection and power-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
- 9
- Nominal heater voltage
- 6.3 V
- Nominal heater current
- 875 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
2 physical sections, each with unique specifications.
Section 1
Triode
X-ray radiationInterelectrode capacitances
- Plate resistance
- 15000 Ω
- Transconductance
- 0.0055 S
- Amplification factor
- 50
- Max plate voltage
- 300 V
- Max plate dissipation
- 1.5 W
- Max cathode current
- 20 mA
Published maximum ratings and typical characteristics promoted from the approved source.
Section 2
Pentode
X-ray radiationInterelectrode capacitances
- Plate resistance
- 18000 Ω
- Transconductance
- 0.011 S
- Max plate voltage
- 550 V
- Max screen voltage
- 250 V
- Max plate dissipation
- 7 W
- Max screen dissipation
- 2.5 W
- Max cathode current
- 80 mA
Published maximum ratings and typical characteristics promoted from the approved source.
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
1968 Mazda Belvu
Published operating points and test conditions from this source.
SECTION 1
Triode
Other
HeaterVoltageNominal
6.3 V
Nominal
HeaterCurrentNominal
875 mA
Nominal
Maximum Plate Voltage
300 V
Maximum Plate Dissipation
1.5 W
Maximum Cathode Current
20 mA
Characteristic
Transconductance
5500 µS
Typical
Amplification Factor
50
Typical
Plate Resistance
15000 ohm
Typical
SECTION 2
Pentode
Other
HeaterVoltageNominal
6.3 V
Nominal
HeaterCurrentNominal
875 mA
Nominal
Maximum Plate Voltage
550 V
Maximum Screen Voltage
250 V
Maximum Plate Dissipation
7 W
Maximum Screen Dissipation
2.5 W
Maximum Cathode Current
80 mA
Characteristic
Transconductance
11000 µS
Typical
Plate Resistance
18000 ohm
Typical
Data set 03
1972 Philips Receiving Tubes
Published operating points and test conditions from this source.
SECTION 1
Triode
Other
HeaterVoltageNominal
6.3 V
Nominal
HeaterCurrentNominal
875 mA
Nominal
Maximum Plate Voltage
300 V
Maximum Plate Dissipation
1.5 W
Maximum Cathode Current
20 mA
Characteristic
Transconductance
5500 µS
Typical
Amplification Factor
50
Typical
Plate Resistance
15000 ohm
Typical
SECTION 2
Pentode
Other
HeaterVoltageNominal
6.3 V
Nominal
HeaterCurrentNominal
875 mA
Nominal
Maximum Plate Voltage
550 V
Maximum Screen Voltage
250 V
Maximum Plate Dissipation
7 W
Maximum Screen Dissipation
2.5 W
Maximum Cathode Current
80 mA
Characteristic
Transconductance
11000 µS
Typical
Plate Resistance
18000 ohm
Typical