NL61935C - - Google Patents

Info

Publication number
NL61935C
NL61935C NL61935DA NL61935C NL 61935 C NL61935 C NL 61935C NL 61935D A NL61935D A NL 61935DA NL 61935 C NL61935 C NL 61935C
Authority
NL
Netherlands
Application number
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.)
Publication of NL61935C publication Critical patent/NL61935C/xx

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
    • H03J3/00—Continuous tuning
    • H03J3/28—Continuous tuning of more than one resonant circuit simultaneously, the tuning frequencies of the circuits having a substantially constant difference throughout the tuning range
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
    • H03J1/00—Details of adjusting, driving, indicating, or mechanical control arrangements for resonant circuits in general
    • H03J1/06—Driving or adjusting arrangements; combined with other driving or adjusting arrangements, e.g. of gain control
    • H03J1/10—Rope drive; Chain drive
NL61935D 1940-05-17 NL61935C (enrdf_load_stackoverflow)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US335708A US2255680A (en) 1940-05-17 1940-05-17 Variable permeability tuning system

Publications (1)

Publication Number Publication Date
NL61935C true NL61935C (enrdf_load_stackoverflow)

Family

ID=23312927

Family Applications (1)

Application Number Title Priority Date Filing Date
NL61935D NL61935C (enrdf_load_stackoverflow) 1940-05-17

Country Status (4)

Country Link
US (1) US2255680A (enrdf_load_stackoverflow)
DE (1) DE971975C (enrdf_load_stackoverflow)
GB (1) GB549459A (enrdf_load_stackoverflow)
NL (1) NL61935C (enrdf_load_stackoverflow)

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3227128A (en) * 1966-01-04 Indlca ixing m mechanism
NL59335C (enrdf_load_stackoverflow) * 1940-12-05
BE446844A (enrdf_load_stackoverflow) * 1941-08-16
DE942098C (de) * 1942-09-10 1956-04-26 Siemens Ag Schiebevariometer mit Massekern fuer einen aus fester Kapazitaet und veraenderbarer Induktivitaet bestehenden Schwingkreis
US2424506A (en) * 1942-10-24 1947-07-22 Rca Corp Permeability-tuned short-wave spread-band receiver
US2417182A (en) * 1942-10-24 1947-03-11 Rca Corp Short-wave permeability tuning system
US2475032A (en) * 1945-03-17 1949-07-05 Rca Corp Variable permeability tuning system
US2542579A (en) * 1945-03-22 1951-02-20 Admiral Corp Connector
US2512258A (en) * 1945-09-13 1950-06-20 Colonial Radio Corp Decimal push-button tuning system
US2531231A (en) * 1945-12-04 1950-11-21 Rca Corp Variable permeability tuning device
US2505111A (en) * 1946-03-20 1950-04-25 Stanley A Hall Tuning mechanism
US2525438A (en) * 1946-04-01 1950-10-10 Robert P Wuerfel Circuit tuning unit
US2477749A (en) * 1946-04-04 1949-08-02 Aladdin Ind Inc Inductor tuning system
US2438359A (en) * 1946-08-01 1948-03-23 Philco Corp Television receiver circuits and apparatus
US2618707A (en) * 1946-11-01 1952-11-18 Raytheon Mfg Co Combination radio receiver and hearing aid
US2508840A (en) * 1947-04-19 1950-05-23 Aladdin Ind Inc Permeability tuner mechanism
US2520985A (en) * 1947-10-22 1950-09-05 Motorola Inc Antenna coupling circuit
US2555475A (en) * 1948-04-30 1951-06-05 Rca Corp Radio receiver tuning mechanism
US2543551A (en) * 1948-06-10 1951-02-27 Stackpole Carbon Co Variable inductance core structure

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2113603A (en) * 1931-05-07 1938-04-12 Johnson Lab Inc High-frequency inductance device
GB408271A (en) * 1932-10-05 1934-04-05 Edward John Wyborn Improvements in or relating to permeability tuning for radio apparatus
GB434675A (en) * 1933-04-22 1935-09-06 Johnson Lab Inc Improvements in or relating to tuning systems for wireless receiving apparatus and the like
US2038281A (en) * 1934-03-05 1936-04-21 Johnson Lab Inc Radio receiving apparatus
DE757101C (de) * 1938-10-06 1954-02-08 Telefunken Gmbh Anordnung zur Erzielung einer frequenzlinearen Abstimmungskurve bei einem Empfaenger
US2190048A (en) * 1939-04-10 1940-02-13 Johnson Lab Inc Permeability-tuned oscillator tracking arrangement

Also Published As

Publication number Publication date
US2255680A (en) 1941-09-09
GB549459A (en) 1942-11-23
DE971975C (de) 1959-05-06

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