IT953833B - Condensatore variabile destinato a rettificare la frequenza di un orologio a quarzo - Google Patents
Condensatore variabile destinato a rettificare la frequenza di un orologio a quarzoInfo
- Publication number
- IT953833B IT953833B IT23660/72A IT2366072A IT953833B IT 953833 B IT953833 B IT 953833B IT 23660/72 A IT23660/72 A IT 23660/72A IT 2366072 A IT2366072 A IT 2366072A IT 953833 B IT953833 B IT 953833B
- Authority
- IT
- Italy
- Prior art keywords
- adjust
- frequency
- variable condenser
- quartz clock
- condenser intended
- Prior art date
Links
- 239000010453 quartz Substances 0.000 title 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 title 1
Classifications
-
- G—PHYSICS
- G04—HOROLOGY
- G04F—TIME-INTERVAL MEASURING
- G04F5/00—Apparatus for producing preselected time intervals for use as timing standards
- G04F5/04—Apparatus for producing preselected time intervals for use as timing standards using oscillators with electromechanical resonators producing electric oscillations or timing pulses
- G04F5/06—Apparatus for producing preselected time intervals for use as timing standards using oscillators with electromechanical resonators producing electric oscillations or timing pulses using piezoelectric resonators
- G04F5/063—Constructional details
- G04F5/066—Trimmer condensators
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Fixed Capacitors And Capacitor Manufacturing Machines (AREA)
- Oscillators With Electromechanical Resonators (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH708371A CH532810A (fr) | 1971-05-14 | 1971-05-14 | Condensateur variable destiné à ajuster la fréquence d'une montre à quartz |
Publications (1)
Publication Number | Publication Date |
---|---|
IT953833B true IT953833B (it) | 1973-08-10 |
Family
ID=4319670
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IT23660/72A IT953833B (it) | 1971-05-14 | 1972-04-28 | Condensatore variabile destinato a rettificare la frequenza di un orologio a quarzo |
Country Status (8)
Country | Link |
---|---|
US (1) | US3778998A (it) |
JP (1) | JPS5228228B1 (it) |
CH (2) | CH532810A (it) |
DE (1) | DE2220456A1 (it) |
FR (1) | FR2137506B1 (it) |
GB (1) | GB1316730A (it) |
IT (1) | IT953833B (it) |
SU (1) | SU459905A3 (it) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4009451A (en) * | 1975-06-12 | 1977-02-22 | Edo-Aire, A Division Of Edo Corporation | Frequency range selectable oscillator for multichannel communication system |
US4141209A (en) * | 1976-12-27 | 1979-02-27 | Fairchild Camera And Instrument Corporation | Crystal controlled oscillator and method of tuning same |
JPS53140067A (en) * | 1977-05-13 | 1978-12-06 | Citizen Watch Co Ltd | Electronic device of small size |
US5949195A (en) * | 1996-12-31 | 1999-09-07 | Wli Industries, Inc. | Apparatus and method for extending useful life of barricade warning light |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3282042A (en) * | 1964-09-10 | 1966-11-01 | Bulova Watch Co Inc | Crystal controlled chronometer |
US3349350A (en) * | 1964-12-04 | 1967-10-24 | Otto E Rittenbach | Frequency step filter |
US3608301A (en) * | 1970-04-30 | 1971-09-28 | Quasar Microsystems Inc | Digital clock having automatic indication of power failure |
-
1971
- 1971-05-14 CH CH708371A patent/CH532810A/fr unknown
- 1971-05-14 CH CH708371D patent/CH708371A4/xx unknown
-
1972
- 1972-04-20 FR FR7214743A patent/FR2137506B1/fr not_active Expired
- 1972-04-24 GB GB1881172A patent/GB1316730A/en not_active Expired
- 1972-04-26 DE DE19722220456 patent/DE2220456A1/de active Pending
- 1972-04-28 IT IT23660/72A patent/IT953833B/it active
- 1972-05-11 JP JP47045979A patent/JPS5228228B1/ja active Pending
- 1972-05-12 SU SU1783255A patent/SU459905A3/ru active
- 1972-05-12 US US00249495A patent/US3778998A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
JPS5228228B1 (it) | 1977-07-25 |
GB1316730A (en) | 1973-05-16 |
CH708371A4 (it) | 1972-09-29 |
FR2137506A1 (it) | 1972-12-29 |
DE2220456A1 (de) | 1972-11-23 |
US3778998A (en) | 1973-12-18 |
FR2137506B1 (it) | 1974-12-20 |
CH532810A (fr) | 1972-09-29 |
SU459905A3 (ru) | 1975-02-05 |
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