Data set 01
1955 Lorenz
Published operating points and test conditions from this source.
SECTION 1
Triode
Construction
Long-life construction
TRUE
Ruggedized construction
TRUE
Voltage - Dual Triode (similar) ·Triode-Triode
6189
Special-quality medium-mu twin triode designed for reliable long-life operation in amplifier and control circuits, broadly associated with the industrial 12AU7 family.
Directly heatedCold cathodeCommon cathodeDissimilar
- Sections
- 2
- Base
- Noval
- Socket code
- B9A
- Base pins
- 9
- Nominal heater
- 12.6 V / 150 mA
Description
High-reliability medium-mu dual triode for voltage amplification, phase splitting, and general-purpose amplifier 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
- Noval
- 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
Noval - 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
- 7700 Ω
- Transconductance
- 0.0031 S
- Amplification factor
- 17
- Max plate voltage
- 320 V
- Max plate dissipation
- 2 W
- Max cathode current
- 22 mA
Representative row for electrically identical repeated sections.
Section 2
Triode
X-ray radiationInterelectrode capacitances
- Plate resistance
- 7700 Ω
- Transconductance
- 0.0031 S
- Amplification factor
- 17
- Max plate voltage
- 320 V
- Max plate dissipation
- 2 W
- Max cathode current
- 22 mA
Second physical triode restored.
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
1959 Telefunken
Published operating points and test conditions from this source.
SECTION 1
Triode
Characteristic
Heater Voltage
6.3 V
Heater Current
300 mA
EquivalentDesignation
ECC802S
Data set 03
1960 RCA Industrial and Communications Types
Published operating points and test conditions from this source.
SECTION 1
Triode
Characteristics
Heater Voltage
12.6 V
Heater Current
150 mA
Data set 04
1961 Tung Sol
Published operating points and test conditions from this source.
SECTION 1
Triode
Other
Plate Voltage
250 V
ClassA;EachSection
Service
Audio amplifier / phase inverter / oscillator / mixer
Characteristic
Plate Current
10.5 mA
ClassA;EachSection
Data set 05
1966 Tung Sol Electronic Tubes 4 of 4
Published operating points and test conditions from this source.
SECTION 1
Triode
Other
Heater/filament voltage
12.6 V
Heater/filament current
150 mA
Application
Application summary
Ruggedized medium-mu twin triode, co-designated 6189/12AU7WA.
Characteristic
Plate voltage
250 V
Plate current
10.5 mA
Plate resistance
7700 ohm
Transconductance
2200 uS
Amplification factor
17
Data set 06
1968 Mazda Belvu
Published operating points and test conditions from this source.
SECTION 1
Triode
Other
HeaterVoltageNominal
6.3 V
Nominal
HeaterCurrentNominal
300 mA
Nominal
Maximum Plate Voltage
330 V
Maximum Plate Dissipation
3 W
Maximum Cathode Current
22 mA
Characteristic
Transconductance
2200 µS
Typical
Amplification Factor
17
Typical
Plate Resistance
7700 ohm
Typical
Data set 07
1999 Philips 0-D
Published operating points and test conditions from this source.
SECTION 1
Triode
Other
Anode current
11.8 mA
Typical per section
Anode-grid capacitance
1.5 pF
Interelectrode
Grid-cathode-heater capacitance
1.6 pF
Interelectrode