CH217897A - Method and device for tuning radio sets. - Google Patents

Method and device for tuning radio sets.

Info

Publication number
CH217897A
CH217897A CH217897DA CH217897A CH 217897 A CH217897 A CH 217897A CH 217897D A CH217897D A CH 217897DA CH 217897 A CH217897 A CH 217897A
Authority
CH
Switzerland
Prior art keywords
radio sets
tuning radio
tuning
sets
radio
Prior art date
Application number
Other languages
German (de)
Inventor
Gloeilampenfabrieken N Philips
Original Assignee
Philips Nv
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 Philips Nv filed Critical Philips Nv
Publication of CH217897A publication Critical patent/CH217897A/en

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
    • H03J3/00—Continuous tuning
    • H03J3/02—Details
    • H03J3/10—Circuit arrangements for fine tuning, e.g. bandspreading
CH217897D 1939-10-16 1941-03-12 Method and device for tuning radio sets. CH217897A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL217897X 1939-10-16

Publications (1)

Publication Number Publication Date
CH217897A true CH217897A (en) 1941-11-15

Family

ID=19779167

Family Applications (1)

Application Number Title Priority Date Filing Date
CH217897D CH217897A (en) 1939-10-16 1941-03-12 Method and device for tuning radio sets.

Country Status (3)

Country Link
CH (1) CH217897A (en)
DE (1) DE970231C (en)
FR (1) FR870240A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE936577C (en) * 1942-07-02 1955-12-15 Siemens Ag Electrical variometer designed for several shortwave ranges

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB149283A (en) * 1919-07-31 1921-10-17 Alfred N Goldsmith Improvements in variable electrical controlling elements especially suitable for usein wireless telegraphy
GB327710A (en) * 1929-01-09 1930-04-09 Gramophone Co Ltd Improvements in or relating to tuning devices for wireless receivers
DE569956C (en) * 1930-11-30 1933-02-10 Telefunken Gmbh Tuning device with flat coil variometer and auxiliary coil
FR736122A (en) * 1931-05-01 1932-11-19 Thomson Houston Comp Francaise Improvements to t devices. s. f.
AT148795B (en) * 1934-10-05 1937-03-10 Hazeltine Corp Device for voting recipients.
DE651551C (en) * 1935-01-29 1937-10-15 Telefunken Gmbh Self-induction coil with a stepwise and a continuously changeable inductance part
AT152397B (en) * 1935-08-19 1938-01-25 Philips Nv Device for operating radio receivers.
US2163646A (en) * 1936-08-08 1939-06-27 Mallory & Co Inc P R Tuning circuit

Also Published As

Publication number Publication date
DE970231C (en) 1958-08-28
FR870240A (en) 1942-03-05

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