Directly heatedCold cathodeCommon cathodeDissimilar
- Sections
- 1
- Base
- -
- Socket code
- -
- Base pins
- -
- Nominal heater
- 12.6 V / 1.225 A
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
- 12.6 V
- Nominal heater current
- 1.225 A
- Parallel heater voltage
- 6.3 V
- Parallel heater current
- 2.4 A
- Series capable
- Yes
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
Tetrode
X-ray radiationInterelectrode capacitances
- Max plate voltage
- 3000 V
Pulse switching tetrode, 25 microsecond pulses; 6.3 V heater 2.1–2.7 A parallel or 12.6 V heater 1.05–1.4 A series.
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.