FR932831A
(en )
1948-04-02
Improvements in the transformation of frequency modulation into phase modulation
CH264771A
(en )
1949-10-31
Ultra short wave generator.
CH235931A
(en )
1944-12-31
Ultra short wave generator.
DK63779C
(en )
1945-08-06
Frequency modulation coupling with a Tube generator and a Reactance tube stage.
CH238067A
(en )
1945-06-15
High frequency tube amplifier.
DK62673C
(en )
1944-09-11
Coupling with a High Frequency Microphone.
DK62857C
(en )
1944-11-06
Frequency modulation coupling.
DK67462C
(en )
1948-08-23
Indirectly heated cathode and coupling with such a cathode.
CH234435A
(en )
1944-09-30
Discharge tube for generating ultra high frequency oscillations.
CH231437A
(en )
1944-03-15
High frequency amplifier circuit.
CH261493A
(en )
1949-05-15
Ultra high frequency generator.
DK63890C
(en )
1945-09-03
Mains-fed reactance tube stage.
DK67187C
(en )
1948-07-12
Frequency modulation coupling with constant Frequency oscillation.
DK58604C
(en )
1941-04-21
Electric discharge tube for very high frequencies and coupling with such a tube.
DK59651C
(en )
1942-04-13
Frequency converter coupling with a Secondary emission tube.
DK65628C
(en )
1947-09-15
Amplifier coupling with Phase reversal stage.
CA399208A
(en )
1941-09-09
High frequency power tube
FR885804A
(en )
1943-09-27
Ultra-short wave generator
ES153274A1
(en )
1943-03-01
A HIGH FREQUENCY AMPLIFIER ASSEMBLY
FR887697A
(en )
1943-11-19
Frequency modulation
CA399384A
(en )
1941-09-16
Ultra short wave oscillation generator
DK49888C
(en )
1935-02-18
Termion Generator for Generating High Frequency and Ultra High Frequency Oscillations.
DK50368C
(en )
1935-06-24
Termion Generator for Generating High Frequency and Ultra High Frequency Oscillations.
DK66186C
(en )
1948-01-12
Ultra-high frequency coupling with a discharge tube.
FI23847A
(en )
1949-08-10
Koppling for alstring and frequency modulation with high frequency modulation