FR857020A - Commutateur d'onde, notamment pour émetteurs de t. s. f. - Google Patents

Commutateur d'onde, notamment pour émetteurs de t. s. f.

Info

Publication number
FR857020A
FR857020A FR857020DA FR857020A FR 857020 A FR857020 A FR 857020A FR 857020D A FR857020D A FR 857020DA FR 857020 A FR857020 A FR 857020A
Authority
FR
France
Prior art keywords
transmitters
wave switch
wave
switch
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
Other languages
English (en)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Societe Francaise Radio Electrique
Original Assignee
Societe Francaise Radio Electrique
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Societe Francaise Radio Electrique filed Critical Societe Francaise Radio Electrique
Application granted granted Critical
Publication of FR857020A publication Critical patent/FR857020A/fr
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
    • H03J5/00—Discontinuous tuning; Selecting predetermined frequencies; Selecting frequency bands with or without continuous tuning in one or more of the bands, e.g. push-button tuning, turret tuner
    • H03J5/24—Discontinuous tuning; Selecting predetermined frequencies; Selecting frequency bands with or without continuous tuning in one or more of the bands, e.g. push-button tuning, turret tuner with a number of separate pretuned tuning circuits or separate tuning elements selectively brought into circuit, e.g. for waveband selection or for television channel selection
    • H03J5/242—Discontinuous tuning; Selecting predetermined frequencies; Selecting frequency bands with or without continuous tuning in one or more of the bands, e.g. push-button tuning, turret tuner with a number of separate pretuned tuning circuits or separate tuning elements selectively brought into circuit, e.g. for waveband selection or for television channel selection used exclusively for band selection
FR857020D 1939-03-17 1939-03-17 Commutateur d'onde, notamment pour émetteurs de t. s. f. Expired FR857020A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR857020T 1939-03-17

Publications (1)

Publication Number Publication Date
FR857020A true FR857020A (fr) 1940-08-22

Family

ID=9329215

Family Applications (1)

Application Number Title Priority Date Filing Date
FR857020D Expired FR857020A (fr) 1939-03-17 1939-03-17 Commutateur d'onde, notamment pour émetteurs de t. s. f.

Country Status (1)

Country Link
FR (1) FR857020A (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2903894A (en) * 1954-01-22 1959-09-15 Legros Robert Guy Method and apparatus for the transmission and reception of radio signals on a large number of regularly spaced frequencies

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2903894A (en) * 1954-01-22 1959-09-15 Legros Robert Guy Method and apparatus for the transmission and reception of radio signals on a large number of regularly spaced frequencies

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