IT947635B - Disposizione circuitale per commu tare le frequenze di risonanza di circuiti elettrici oscillanti - Google Patents

Disposizione circuitale per commu tare le frequenze di risonanza di circuiti elettrici oscillanti

Info

Publication number
IT947635B
IT947635B IT20667/72A IT2066772A IT947635B IT 947635 B IT947635 B IT 947635B IT 20667/72 A IT20667/72 A IT 20667/72A IT 2066772 A IT2066772 A IT 2066772A IT 947635 B IT947635 B IT 947635B
Authority
IT
Italy
Prior art keywords
switching
circuit arrangement
electrical circuits
resonance frequencies
switching electrical
Prior art date
Application number
IT20667/72A
Other languages
English (en)
Original Assignee
Grundig Emv
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 Grundig Emv filed Critical Grundig Emv
Application granted granted Critical
Publication of IT947635B publication Critical patent/IT947635B/it

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
    • H03J5/02—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 variable tuning element having a number of predetermined settings and adjustable to a desired one of these settings
    • H03J5/0218—Discontinuous tuning using an electrical variable impedance element, e.g. a voltage variable reactive diode, by selecting the corresponding analogue value between a set of preset values
    • H03J5/0227—Discontinuous tuning using an electrical variable impedance element, e.g. a voltage variable reactive diode, by selecting the corresponding analogue value between a set of preset values using a counter
IT20667/72A 1971-02-18 1972-02-17 Disposizione circuitale per commu tare le frequenze di risonanza di circuiti elettrici oscillanti IT947635B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2107714A DE2107714C3 (de) 1971-02-18 1971-02-18 Schaltung zum Umschalten der Resonanzfrequenzen elektrischer Schwingkreise

Publications (1)

Publication Number Publication Date
IT947635B true IT947635B (it) 1973-05-30

Family

ID=5799105

Family Applications (1)

Application Number Title Priority Date Filing Date
IT20667/72A IT947635B (it) 1971-02-18 1972-02-17 Disposizione circuitale per commu tare le frequenze di risonanza di circuiti elettrici oscillanti

Country Status (5)

Country Link
US (1) US3787784A (it)
JP (1) JPS5512771B1 (it)
DE (1) DE2107714C3 (it)
GB (1) GB1391458A (it)
IT (1) IT947635B (it)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1356553A (en) 1971-12-16 1974-06-12 Tokyo Shibaura Electric Co Channel selecting apparatus including an electronic tuner
NL165896C (nl) * 1974-07-05 1981-05-15 Matsushita Electric Ind Co Ltd Spanningsleveringsinrichting.
US4027230A (en) * 1974-12-04 1977-05-31 Matsushita Electric Industrial Co., Ltd. Electronic multi-channel selection switch with common new-selection sensing device
US4245186A (en) * 1978-12-11 1981-01-13 Gte Products Corporation Tuning voltage interface circuit for electronic tuners
JPS58159607A (ja) * 1982-03-18 1983-09-22 株式会社東芝 閉鎖配電盤の扉装置

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DD66226A (it) *
GB933934A (en) * 1960-12-08 1963-08-14 Marconi Wireless Telegraph Co Improvements in or relating to frequency varying circuit arrangements
DE1466450B2 (de) * 1963-12-18 1972-03-02 Telefunken Patentverwertungsge Seilschaft mbH, 7900 Ulm Abstimmeinrichtung fuer geraete der hochfrequenz nachrichten technik insbesondere fernsehempfaenger
JPS4831846B1 (it) * 1968-05-30 1973-10-02
GB1281061A (en) * 1968-08-30 1972-07-12 Matsushita Electric Ind Co Ltd Channel selector and tuner combination
US3521204A (en) * 1969-01-03 1970-07-21 Motorola Inc Electronically tuned pushbutton radio having station selecting comparison means
JPS4932001B1 (it) * 1969-04-14 1974-08-27
US3596183A (en) * 1969-04-18 1971-07-27 Motorola Inc Multiband tuning control system with programmable electronic switching
GB1316871A (en) * 1969-05-20 1973-05-16 Matsushita Electric Ind Co Ltd Tuning system for selecting channels

Also Published As

Publication number Publication date
US3787784A (en) 1974-01-22
DE2107714C3 (de) 1981-08-06
DE2107714B2 (de) 1973-03-15
JPS5512771B1 (it) 1980-04-04
GB1391458A (en) 1975-04-23
DE2107714A1 (de) 1972-08-31

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