Directly heatedCold cathodeCommon cathodeDissimilar
- Sections
- 2
- Base
- -
- Socket code
- -
- Base pins
- -
- Nominal heater
- 6.3 V / 450 mA
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
- 6.3 V
- Nominal heater current
- 450 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
- 5300 Ω
- Transconductance
- 0.0072 S
- Amplification factor
- 38
- Max plate voltage
- 250 V
- Max plate dissipation
- 2 W
- Max cathode current
- 20 mA
Section 2
Pentode
X-ray radiationInterelectrode capacitances
- Plate resistance
- 350000 Ω
- Transconductance
- 0.011 S
- Max plate voltage
- 250 V
- Max screen voltage
- 175 V
- Max plate dissipation
- 1.5 W
- Max screen dissipation
- 0.5 W
- Max cathode current
- 20 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.