Data set 01
194X Wehrmacht Rohren
Published operating points and test conditions from this source.
SECTION 1
Triode
Other
Heater Voltage
14 V
Published technical-data value
Maximum Anode/Acceleration Voltage
2500 V
Published technical-data value
Directly heatedCold cathodeCommon cathodeDissimilar
- Sections
- 1
- Base
- -
- Socket code
- -
- Base pins
- -
- Nominal heater
- 14 V / -
Description
LD15 is a transmitting or UHF/dezimeter-wave triode intended for oscillator and RF amplifier service as specified in the approved German technical sheet.
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
- 14 V
- Nominal heater current
- -
- 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
No fixed ratings are recorded for this section.
Published ratings and characteristics promoted where directly established; additional values retained as parameters. Telefunken LD15 decimetric-wave transmitter triode, a higher-voltage variant of LD5 especially suited to anode keying. Datasheet specifies 2500 V keyed operation with pulse duty factor 1:150 at up to 12 km altitude, or 2000 V at up to 16 km. At about 65 cm self-oscillation, keyed plate current about 1.5 A and useful pulse output about 1.5 kW are test conditions, not unrestricted continuous maximum ratings. No general continuous maximum anode voltage established.
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.