FR844223A - Perfectionnements aux systèmes de commande d'accord pour appareils radiorécepteurs et analogues - Google Patents

Perfectionnements aux systèmes de commande d'accord pour appareils radiorécepteurs et analogues

Info

Publication number
FR844223A
FR844223A FR844223DA FR844223A FR 844223 A FR844223 A FR 844223A FR 844223D A FR844223D A FR 844223DA FR 844223 A FR844223 A FR 844223A
Authority
FR
France
Prior art keywords
control systems
tuning control
radio receivers
receivers
radio
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)
French (fr)
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.)
Marconis Wireless Telegraph Co Ltd
BAE Systems Electronics Ltd
Original Assignee
Marconis Wireless Telegraph Co Ltd
Marconi Co Ltd
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 Marconis Wireless Telegraph Co Ltd, Marconi Co Ltd filed Critical Marconis Wireless Telegraph Co Ltd
Application granted granted Critical
Publication of FR844223A publication Critical patent/FR844223A/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
    • H03J5/26—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 operated by hand
    • H03J5/32—Stationary tuning circuits or elements selected by push-button
FR844223D 1937-07-20 1938-07-20 Perfectionnements aux systèmes de commande d'accord pour appareils radiorécepteurs et analogues Expired FR844223A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB221469X 1937-07-20

Publications (1)

Publication Number Publication Date
FR844223A true FR844223A (fr) 1939-07-20

Family

ID=10174651

Family Applications (1)

Application Number Title Priority Date Filing Date
FR844223D Expired FR844223A (fr) 1937-07-20 1938-07-20 Perfectionnements aux systèmes de commande d'accord pour appareils radiorécepteurs et analogues

Country Status (4)

Country Link
BE (1) BE429266A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
CH (1) CH221469A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
FR (1) FR844223A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
GB (1) GB498927A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Also Published As

Publication number Publication date
GB498927A (en) 1939-01-17
CH221469A (fr) 1942-05-31
BE429266A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

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