ND 4
0 Tubes in archive
BrandTelefunken
ClassUKW-Sende-Triode
BaseIg.-Nr. 1693
Filament12.6V @ 180mA
Construction
Primary TypeTriode
EnvelopeGlass
Sections1
Filament / Heater
Heater NotesIndirekt geheizt; Serienschaltung nur bei Einhaltung des Sollwertes zulässig.
Absolute Maximum Ratings
Plate Voltage350 V
Plate Dissipation12 W
Cathode Current90 mA
H-C Voltage100 V
Audio Performance
Key Features
- Oxydkathode
- Indirekt geheizt
- UKW-Sende-Triode
- Frequency Doubler Capable
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Static Characteristics | 200V | 10000 | 3000 | 30 | 40mA |
| Self-Excited Oscillator (1.0m) | 300V | - | - | - | 90mA |
| Self-Excited Oscillator (0.7m) | 250V | - | - | - | 90mA |
| Self-Excited Oscillator (0.5m) | 200V | - | - | - | 90mA |
Application Notes
Zur Vermeidung von Störschwingungen ist die Gittervorspannung durch Widerstand in der Kathodenleitung und nicht durch Widerstand in der Gitterzuleitung zu erzeugen.
Datasheet Viewer
Loading datasheet...
Sort by
Showing 1 to 0 of 0 results