LD2 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
Properties common to every published source and operating point.
Electrical assignments shared by every tube using this base designation.
No verified pinout is recorded for this base designation.
1 physical section, each with unique specifications.
Section 1
Published ratings and characteristics promoted where directly established; additional values retained as parameters. Telefunken LD2 transmitting triode. Maximum operating anode voltage 300 V, anode dissipation 12 W, grid dissipation 0.6 W and cathode current 90 mA. Amplification factor approximately 25. Manufacturer lists transconductance of 7 to 11.5 mA/V at 200 V and 30 mA. Higher instantaneous currents are permissible only during short keyed pulses. Series connection of two heaters is supported.
Source-dependent data
Each block preserves the test conditions and published values from one reference. Values from different sources are intentionally kept separate.
Data set 01
Published operating points and test conditions from this source.
Heater Voltage
12.6 V
Published technical-data value
Heater Current
175 mA
Published technical-data value
Maximum Anode/Acceleration Voltage
300 V
Published technical-data value