Data set 01
1953 RFT Rundfunk Technik
Published operating points and test conditions from this source.
SECTION 1
Triode
Application
Application
VoltageAmplifier text
Voltage - Dual Triode (similar) ·Triode-Triode
ECC83
High-mu twin triode for low-level audio and general voltage amplification, widely used where two high-gain small-signal triode sections are required.
Directly heatedCold cathodeCommon cathodeDissimilar
- Sections
- 2
- Base
- B9A
- Socket code
- B9A
- Base pins
- 9
- Nominal heater
- 12.6 V / 150 mA
Description
High-mu twin triode for AF preamplifier service; source also designates ECC83.
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
- B9A
- Socket code
- B9A
- Base pins
- 9
- Nominal heater voltage
- 12.6 V
- Nominal heater current
- 150 mA
- Parallel heater voltage
- 6.3 V
- Parallel heater current
- 300 mA
- Series capable
- Yes
B9A - 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
- 62500 Ω
- Transconductance
- 0.0016 S
- Amplification factor
- 100
- Max plate voltage
- 300 V
- Max plate dissipation
- 1 W
- Max cathode current
- 8 mA
Representative section for two electrically identical sections.
Section 2
Triode
X-ray radiationInterelectrode capacitances
- Transconductance
- 0.0016 S
- Amplification factor
- 100
- Max plate voltage
- 300 V
- Max plate dissipation
- 1 W
- Max cathode current
- 8 mA
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
1956 Amperex Hi Fi Brochure
Published operating points and test conditions from this source.
SECTION 1
Triode
Characteristics
Plate Voltage
100 V
Each section
Plate Current
0.5 mA
Each section
Control Grid Voltage
-1 V
Each section
Transconductance
1250 uS
PlateVoltage=100V
Plate Resistance
80000 ohm
PlateVoltage=100V
Plate Voltage
250 V
Each section
Plate Current
1.2 mA
Each section
Control Grid Voltage
-2 V
Each section
Other
Maximum Grid Resistance
2000000 ohm
Each section
Maximum Filament-to-Cathode Voltage
180 V
Data set 03
1958 Amperex Industrial
Published operating points and test conditions from this source.
SECTION 1
Triode
Other
Plate voltage
250 V
VoltageAmplifier
Grid voltage
-2 V
VoltageAmplifier
Plate current
1.2 mA
VoltageAmplifier
Characteristic
Amplification factor
100
Plate resistance
62500 ohm
Transconductance
1600 µS
Data set 04
195X Tesla
Published operating points and test conditions from this source.
SECTION 1
Triode
Characteristics
Interelectrode capacitances
Published
See source sheet for electrode-specific capacitance values
Data set 05
1961 Ferranti Technical Handbook
Published operating points and test conditions from this source.
SECTION 1
Triode
Characteristic
Heater Voltage
6.3 V
Heater Current
300 mA
Application
Resistance-coupled AF amplifier or phase inverter
Data set 06
1963 Amperex Condensed
Published operating points and test conditions from this source.
SECTION 1
Triode
Characteristic
Heater voltage
6.3 V
Published heater rating
Heater current
300 mA
Published heater rating
Amplification factor
100
VoltageAmplifier
Plate resistance
62500 ohm
VoltageAmplifier
Transconductance
1600 µS
VoltageAmplifier
Series heater voltage
12.6 V
SeriesHeater
Series heater current
150 mA
SeriesHeater
Other
Plate voltage
250 V
VoltageAmplifier
Control-grid bias
-2 V
VoltageAmplifier
Plate current
1.2 mA
VoltageAmplifier
Data set 07
1963 Philips Electron Tubes Handbook V1a
Published operating points and test conditions from this source.
SECTION 1
Triode
Other
Plate voltage
250 V
VoltageAmplifier
Grid voltage
-2 V
VoltageAmplifier
Plate current
1.2 mA
VoltageAmplifier
Characteristic
Amplification factor
100
Plate resistance
62500 ohm
Transconductance
1600 µS
Data set 08
1967 Mullard Receiving and Amplifying Valves
Published operating points and test conditions from this source.
SECTION 1
Triode
Characteristic
Plate Current
0.5 mA
EachSection;Va=100V
Transconductance
1250 uS
EachSection;Va=100V
Amplification Factor
100
EachSection;Va=100V
Plate Resistance
80000 ohm
EachSection;Va=100V
Plate Current
1.2 mA
EachSection;Va=250V
Transconductance
1600 uS
EachSection;Va=250V
Amplification Factor
100
EachSection;Va=250V
Plate Resistance
62500 ohm
EachSection;Va=250V
Plate Resistance
62500 ohm
Transconductance
1600 uS
Amplification Factor
100
Other
Maximum Plate Voltage
300 V
Maximum Plate Dissipation
1 W
Data set 09
1968 Mazda Belvu
Published operating points and test conditions from this source.
SECTION 1
Triode
Application
Application
AF_Preamplifier text
Data set 10
1972 Philips Receiving Tubes
Published operating points and test conditions from this source.
SECTION 1
Triode
Other
Anode current L
1.2 mA
Transconductance S
1.6 mA/V
Heater voltage Vi 6.3
12.6 V
Heater current 1f 300
150 mA
Capacitance
Grid to all except anode Cg(a)
1.6 pF
Cg'(a")
1.6 pF
Anode to all except grid Ca(g)
0.33 pF
Ca'(g")
0.23 pF
Anode to grid Cag
1.6 pF
Ca'g!
1.6 pF
Grid to heater Cgf max
- to 0.15 pF
Maximum
Cg's max
- to 0.15 pF
Maximum
Anode to anode Caat max
- to 1.2 pF
Maximum
Data set 11
1973 Mazda Valves Binder 2
Published operating points and test conditions from this source.
SECTION 1
Triode
Other
Heater Voltage Vh 6.31 f
12.6 V
Heater Current Ih 0.3f or 1
150 mA
Maximum Anode Dissipation pa)max)
1 W
Maximum Anode Voltage Vaimaxi
300 V
(D.C. or R.M.S.) Vh-k(max)
180 V
Maximum Cathode Current Ik(max)
8 mA
Characteristic
Input' 1.6 1.8
2.6 pF
Output' tout' 0.33 0.48
1.3 pF
Output" cout" 0.23 0.34
1.1 pF
Anode' to Grid' ca '-g' 1.6 1.7
2 pF
Anode" to Grid" g" 1.6 1.8
2.1 pF
Anode' to Anode" ca'-a" 0.9 0.95
0.95 pF
Grid' to Grid" cg'.g" 0.008 0.012
0.014 pF
Data set 12
1975 RCA RC30
Published operating points and test conditions from this source.
SECTION 1
Triode
Other
Heater Voltage (ac/dc) 12.6 S
3 V
Published in approved ECC83 target datasheet entry; Section1
Heater Current 0.16
300 mA
Published in approved ECC83 target datasheet entry; Section1
Grid to Plate 1.7
1.7 pF
Published in approved ECC83 target datasheet entry; Section1
Grid to Cathode and Heater 1.6
1.6 pF
Published in approved ECC83 target datasheet entry; Section1
Plate to Cathode and Heater 0.46
0.34 pF
Published in approved ECC83 target datasheet entry; Section1
Plate Voltage
330 V
Published in approved ECC83 target datasheet entry; Section1
Negative-bias value
55 V
Published in approved ECC83 target datasheet entry; Section1
Positive-bias value
0 V
Published in approved ECC83 target datasheet entry; Section1
Plate Dissipation
1.2 W
Published in approved ECC83 target datasheet entry; Section1
connection),
6.3 V
Published in approved ECC83 target datasheet entry; Section1
250 volts dc ; plate load resistor,
100000 Ω
Published in approved ECC83 target datasheet entry; Section1
250 volts dc ; plate load resistor, 100000 ohms ; cathode resistor,
2700 Ω
Published in approved ECC83 target datasheet entry; Section1
Data set 13
1999 Philips E-Z
Published operating points and test conditions from this source.
SECTION 1
Triode
Other
1)In case of series supply a current-limiting device must
1 V
1)In case of series supply a current-limiting device must
be inserted in the heater circuit for
1 A
be inserted in the heater circuit for 1limiting the
tap of the heater has been earthed, Rg, <
500 mA
tap of the heater has been earthed, Rg, < 0.5 MQ and the
1) Vo at grid current sturting point
1 V
1) Vo at grid current sturting point
60 dB when the centre tap of the heater has been earthed,
-60 A
-60 dB when the centre tap of the heater has been earthed,
Rg £
0.5 uF
Rg £ 0.5 MQ and the cathode resistor is sufficiently
1) Vo at grid current starting point
1 V
1) Vo at grid current starting point
Characteristics
hum and noise will be better than ~60 dB, when the mid
60 A
hum and noise will be better than ~60 dB, when the mid-
Data set 14
2026 Genalex Rebrand
Published operating points and test conditions from this source.
SECTION 1
Triode
Characteristic
Plate Current
1.05 to 2 mA
Plate 250 V; grid -2 V
Data set 15
2026 Mullard Rebrand
Published operating points and test conditions from this source.
SECTION 1
Triode
Characteristics
Heater current at 6.3 V
350 to 390 mA
Published min/max range
Heater current at 12.6 V
175 to 195 mA
Published min/max range