FR687685A - Perfectionnements aux circuits de t. s. f. - Google Patents

Perfectionnements aux circuits de t. s. f.

Info

Publication number
FR687685A
FR687685A FR687685DA FR687685A FR 687685 A FR687685 A FR 687685A FR 687685D A FR687685D A FR 687685DA FR 687685 A FR687685 A FR 687685A
Authority
FR
France
Prior art keywords
circuits
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.)
Parlophone Records Ltd
Original Assignee
Gramophone 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 Gramophone Co Ltd filed Critical Gramophone Co Ltd
Application granted granted Critical
Publication of FR687685A publication Critical patent/FR687685A/fr
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
    • H03J3/00—Continuous tuning
    • H03J3/24—Continuous tuning of more than one resonant circuit simultaneously, the circuits being tuned to substantially the same frequency, e.g. for single-knob tuning
    • 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
FR687685D 1929-03-07 1930-01-04 Perfectionnements aux circuits de t. s. f. Expired FR687685A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB7527/29A GB326984A (en) 1929-03-07 1929-03-07 Improvements in or relating to wireless circuits

Publications (1)

Publication Number Publication Date
FR687685A true FR687685A (fr) 1930-08-12

Family

ID=9834828

Family Applications (1)

Application Number Title Priority Date Filing Date
FR687685D Expired FR687685A (fr) 1929-03-07 1930-01-04 Perfectionnements aux circuits de t. s. f.

Country Status (4)

Country Link
US (1) US1912617A (fr)
DE (1) DE526728C (fr)
FR (1) FR687685A (fr)
GB (1) GB326984A (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2511327A (en) * 1949-01-03 1950-06-13 Avco Mfg Corp Band-pass input circuit

Also Published As

Publication number Publication date
US1912617A (en) 1933-06-06
GB326984A (en) 1930-03-27
DE526728C (de) 1931-06-10

Similar Documents

Publication Publication Date Title
FR702800A (fr) Perfectionnements aux récepteurs de t. s. f.
FR687685A (fr) Perfectionnements aux circuits de t. s. f.
FR689473A (fr) Perfectionnements aux micro-téléphones
FR35726E (fr) Perfectionnements aux postes récepteurs de t.s.f.
FR695148A (fr) Perfectionnements apportés aux stylographes
FR708933A (fr) Perfectionnements apportés aux sièges
FR690774A (fr) Perfectionnements aux automobilss
FR673984A (fr) Perfectionnements aux postes-valises récepteurs de t. s. f.
FR702822A (fr) Perfectionnements aux télégraphones
FR696388A (fr) Perfectionnements aux tire-roues
FR40338E (fr) Arracheuse-ensacheuse de tubercules
FR705949A (fr) Arracheuse-ensacheuse de tubercules
FR698675A (fr) Perfectionnements apportés aux gyrostats
FR671308A (fr) Perfectionnements apportés aux récepteurs de t. s. f.
FR704233A (fr) Perfectionnements aux tampons
CH150963A (de) Tempierungsmaschine.
FR702657A (fr) Perfectionnements aux récepteurs de t. s. f.
FR35719E (fr) Perfectionnements aux postes récepteurs de t.s.f.
FR37392E (fr) Perfectionnements apportés aux panetons
FR706868A (fr) Perfectionnements aux photo-goniomètres
FR704572A (fr) Perfectionnements apportés aux synchronoscopes
FR692958A (fr) Perfectionnements aux hydro-glisseurs
FR680775A (fr) Perfectionnements apportés aux panetons
FR671648A (fr) Perfectionnements aux poulies-palans
FR40226E (fr) Perfectionnements aux odographes