German | English | |
---|---|---|
Patent | ||
Patent | Oszillatorröhre | oscillator tube |
German | English | |
---|---|---|
Patent | ||
Patent | Barkhausen-Kurz-Oszillatorröhre | Barkhausen-Kurz oscillator tube |
Electrical Engineering | ||
Electrical Engineering | Misch- und Oszillatorröhre [f] | frequency-converter tube |