Data set 01
1963 Siemens
Published operating points and test conditions from this source.
SECTION 1
Triode
Other
Heater voltage
6 V
Heater current
975 mA
Characteristics
Transconductance
25000 µS
Nominal/Bogey
Power - Triode ·Triode
2C39BA
Air-cooled metal-ceramic disc-seal power triode for microwave oscillators, modulators, power mixers, amplifiers, and frequency multipliers. Siemens documentation supports operation into the multi-gigahertz region from this compact high-transconductance structure.
Directly heatedCold cathodeCommon cathodeDissimilar
- Sections
- 1
- Base
- -
- Socket code
- -
- Base pins
- -
- Nominal heater
- 6 V / 975 mA
Description
Air-cooled power disc-seal triode of metal-ceramic construction for oscillators, modulators, power mixers, amplifiers and frequency multipliers to about 3.5 GHz.
General specifications
Tube and section characteristics
Properties common to every published source and operating point.
Heater and base
- Base
- -
- Socket code
- -
- Base pins
- -
- Nominal heater voltage
- 6 V
- Nominal heater current
- 975 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
1 physical section, each with unique specifications.
Section 1
Triode
X-ray radiationInterelectrode capacitances
- Transconductance
- 0.025 S
- Amplification factor
- 100
- Max plate voltage
- 600 V
- Max plate dissipation
- 100 W
- Max grid dissipation
- 2 W
- Max cathode current
- 125 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.