Data set 01
1953 AEG
Published operating points and test conditions from this source.
SECTION 1
Triode
Other
Typical anode voltage
135 V
Typical anode current per system
125 mA
Capacitance
Interelectrode capacitance present
TRUE
Power - Triode ·Triode-Triode
6080
High-current dual power triode designed for series-voltage-regulator and power-control service. Its identical low-mu sections have very low plate resistance, emphasizing current handling and low voltage drop rather than voltage amplification.
Directly heatedCold cathodeCommon cathodeDissimilar
- Sections
- 2
- Base
- 8BD
- Socket code
- IO
- Base pins
- 8
- Nominal heater
- 6.3 V / 2.5 A
Description
High-current dual power triode for series-voltage-regulator and power-control service.
Socket description
International Octal
General specifications
Tube and section characteristics
Properties common to every published source and operating point.
Heater and base
- Base
- 8BD
- Socket code
- IO
- Base pins
- 8
- Nominal heater voltage
- 6.3 V
- Nominal heater current
- 2.5 A
- Parallel heater voltage
- -
- Parallel heater current
- -
- Series capable
- No
8BD - Terminal pinout
Electrical assignments shared by every tube using this base designation.
| Terminal | Section | Connection | Evidence |
|---|---|---|---|
| PIN12G1 | B | G1 — Control Grid EIA transcription; manufacturer confirmation pending | Unverified EIA Base Connections, printed page 129, 8BD |
| PIN22P | B | P — Plate (Anode) EIA transcription; manufacturer confirmation pending | Unverified EIA Base Connections, printed page 129, 8BD |
| PIN32K | B | K — Cathode EIA transcription; manufacturer confirmation pending | Unverified EIA Base Connections, printed page 129, 8BD |
| PIN41G1 | A | G1 — Control Grid EIA transcription; manufacturer confirmation pending | Unverified EIA Base Connections, printed page 129, 8BD |
| PIN51P | A | P — Plate (Anode) EIA transcription; manufacturer confirmation pending | Unverified EIA Base Connections, printed page 129, 8BD |
| PIN61K | A | K — Cathode EIA transcription; manufacturer confirmation pending | Unverified EIA Base Connections, printed page 129, 8BD |
| PIN7H | — | H — Heater EIA transcription; manufacturer confirmation pending | Unverified EIA Base Connections, printed page 129, 8BD |
| PIN8H | — | H — Heater EIA transcription; manufacturer confirmation pending | Unverified EIA Base Connections, printed page 129, 8BD |
Section ratings
2 physical sections, each with unique specifications.
Section 1
Triode
X-ray radiationInterelectrode capacitances
- Plate resistance
- 280 Ω
- Transconductance
- 0.007 S
- Amplification factor
- 2
- Max plate voltage
- 250 V
- Max plate dissipation
- 13 W
- Max cathode current
- 150 mA
Representative section for repeated identical sections.
Section 2
Triode
X-ray radiationInterelectrode capacitances
- Plate resistance
- 280 Ω
- Transconductance
- 0.007 S
- Amplification factor
- 2
- Max plate voltage
- 250 V
- Max plate dissipation
- 13 W
- Max cathode current
- 150 mA
Identical second physical section; duplicated from representative section per physical-section-row policy.
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
1958 Compagnie General
Published operating points and test conditions from this source.
SECTION 1
Triode
Other
Maximum Plate Voltage
250 V
Each section
Maximum Plate Dissipation
13 W
Each section
Maximum Plate Current
150 mA
Each section
Maximum Heater-to-Cathode Voltage
300 V
Data set 03
195X General Electric Essential Characteristics
Published operating points and test conditions from this source.
SECTION 1
Triode
Other
Maximum plate voltage
250 V
Published handbook rating
Plate voltage
135 V
ClassA
Cathode resistor
125 ohm
DCAmplifier
DC plate voltage
135 V
DCAmplifier
Published load/output value
7000
DCAmplifier
Characteristic
Transconductance
280 µS
Published handbook characteristic
Heater/filament voltage
6.3 V
Published heater/filament rating
Heater/filament current
2.5 A
Published heater/filament rating
Published characteristic value
280
DCAmplifier
Data set 04
1960 RCA Industrial and Communications Types
Published operating points and test conditions from this source.
SECTION 1
Triode
Characteristics
Heater Voltage
6.3 V
Heater Current
2.5 A
Data set 05
1963 Philips Electron Tubes Handbook V1
Published operating points and test conditions from this source.
SECTION 1
Triode
Capacitance
Grid-to-plate capacitance
8.6 pF
EachSection
Plate capacitance
2.5 pF
EachSection
Grid capacitance
5.5 pF
EachSection
Other
Plate voltage
100 V
SeriesRegulator;EachSection
Plate current
100 mA
SeriesRegulator;EachSection
Cathode resistor
300 Ω
SeriesRegulator;EachSection
Plate current
125 mA
SeriesRegulator;EachSection
Cathode resistor
250 Ω
SeriesRegulator;EachSection
Peak inverse plate voltage maximum
3000 V
BoosterService
Application
Series regulator, servo, or booster triode
Section1
Characteristic
Transconductance
6500 µS
EachSection
Plate resistance
300 Ω
EachSection
Transconductance
7000 µS
EachSection
Plate resistance
280 Ω
EachSection
Amplification factor
2
EachSection
Data set 06
1963 Philips Electron Tubes Handbook V3
Published operating points and test conditions from this source.
SECTION 1
Triode
Characteristic
provide a minimum voltage drop of
15 V
provide a minimum voltage drop of 15 V D.C. at the
Heater voltage
6.3 V
parallel supply Vf = 6.3 V
Heater current
2.5 mA
alimentation parallele If = 2.5 *- 0.24 A
Capacitance
Grid-to-plate capacitance
8.6 pF
Cag = 8.6 pF Ca'g' 8.6 pF
Plate capacitance
2.5 pF
Ca = 2.5 pF Ca' = 2.5 pF
Grid capacitance
5.5 pF
Cg = 5.5 pF Cg' 5.5 pF
Cathode-heater capacitance
7 pF
Ckf = 7 pF Ck'f = 7 pF
Other
Plate supply voltage
135 V
Vba 135 V
Plate voltage
100 V
Va = 100 - V
Plate current
100 mA
Ia = 100 125 mA
Cathode resistor
300 ohm
Rk = 300 250 0
Amplification factor
2
µ = 2 2
Plate resistance
300 kohm
Ri = 300 290 0
Heater voltage
6.3 V
Vf = 6.3 V
Plate supply voltage
135 V
Vba = 135 V
Data set 07
1967 Mullard Receiving Tubes for Maintenance
Published operating points and test conditions from this source.
SECTION 1
Triode
Capacitance
Grid-to-Plate Capacitance
8.6 pF
EachSection
Input Capacitance
5.5 pF
EachSection
Output Capacitance
2.5 pF
EachSection
Heater-to-Cathode Capacitance
7 pF
EachSection
Plate-to-Plate Intersection Capacitance
2.2 pF
BetweenSections
Grid-to-Grid Intersection Capacitance
0.5 pF
BetweenSections
Characteristic
Plate Supply Voltage
135 V
Characteristics
Plate Current
125 mA
Characteristics
Cathode Bias Resistor
250 ohm
Characteristics
Plate Resistance
280 ohm
Characteristics
Transconductance
7000 uS
Characteristics
Amplification Factor
2
Characteristics
Other
Plate Supply Voltage
550 V
AbsoluteRatings
Plate Voltage
250 V
AbsoluteRatings
Data set 08
1968 Mazda Belvu
Published operating points and test conditions from this source.
SECTION 1
Triode
Other
HeaterVoltageNominal
6.3 V
Nominal
HeaterCurrentNominal
2.55 A
Nominal
Maximum Plate Voltage
250 V
Maximum Plate Dissipation
13 W
Maximum Cathode Current
125 mA
Characteristic
Transconductance
7000 µS
Typical
Amplification Factor
2
Typical
Data set 09
1971 RCA HB3 Binder 3 of 7
Published operating points and test conditions from this source.
SECTION 1
Triode
Characteristics
Voltage — published value 1
6 V
Published datasheet value; multiple values on a source row represent separate source-table conditions or limits.
Voltage — published value 2
3 V
Published datasheet value; multiple values on a source row represent separate source-table conditions or limits.
Voltage — published value 3
10 V
Published datasheet value; multiple values on a source row represent separate source-table conditions or limits.
Current
25 A
Published datasheet value; multiple values on a source row represent separate source-table conditions or limits.
Grid to Plate
8
Published datasheet value; multiple values on a source row represent separate source-table conditions or limits.
Grid of Unit No.l to Grid of Unit No.2
0.5
Published datasheet value; multiple values on a source row represent separate source-table conditions or limits.
to Plate of Unit No.2
2
Published datasheet value; multiple values on a source row represent separate source-table conditions or limits.
Plate—Supply Voltage
135 V
Published datasheet value; multiple values on a source row represent separate source-table conditions or limits.
Cathode—Bias Resistor
250 ohm
Published datasheet value; multiple values on a source row represent separate source-table conditions or limits.
Plate Resistance
280 ohm
Published datasheet value; multiple values on a source row represent separate source-table conditions or limits.
Transconductance
7000
Published datasheet value; multiple values on a source row represent separate source-table conditions or limits.
Plate Current
125 mA
Published datasheet value; multiple values on a source row represent separate source-table conditions or limits.
Pin 1 —Grid of — published value 1
1
Published datasheet value; multiple values on a source row represent separate source-table conditions or limits.
Pin 1 —Grid of — published value 2
5
Published datasheet value; multiple values on a source row represent separate source-table conditions or limits.
Pin 2 —Plate of — published value 1
2
Published datasheet value; multiple values on a source row represent separate source-table conditions or limits.
Data set 10
1975 RCA RC30
Published operating points and test conditions from this source.
SECTION 1
Triode
Other
Peak
300 V
Other
Plate Voltage
250 V
MaximumRatings
Plate Current
125 mA
MaximumRatings
Capacitance
Grid to Plate (each unit)
8 pF
Capacitance
Input (each unit)
6 pF
Capacitance
Output (each unit)
2.2 pF
Capacitance
Heater to Cathode (each unit)
11 pF
Capacitance
Grid of Unit No.l to Grid of Unit No.2
0.5 pF
Capacitance
Plate of Unit No.l to Plate of Unit No.2
2 pF
Capacitance
Characteristic
Plate-Supply Voltage
135 V
Characteristics
Cathode-Bias Resistor
250 ohm
Characteristics
Plate Resistance
280 ohm
Characteristics
Transconductance
7000 uS
Characteristics
Plate Current
125 mA
Characteristics
Data set 11
1999 Philips E-Z
Published operating points and test conditions from this source.
SECTION 1
Triode
Other
Automatic bias
1 mA
Automatic bias 1s recommended. With fixed bias the anode
provide a minimum voltage drop of
15 V
provide a minimum voltage drop of 15 V D.C. at the