FR872903A - Improvements to radiotelegraph transmitters intended for research in the upper atmosphere - Google Patents
Improvements to radiotelegraph transmitters intended for research in the upper atmosphereInfo
- Publication number
- FR872903A FR872903A FR872903DA FR872903A FR 872903 A FR872903 A FR 872903A FR 872903D A FR872903D A FR 872903DA FR 872903 A FR872903 A FR 872903A
- Authority
- FR
- France
- Prior art keywords
- radiotelegraph
- research
- upper atmosphere
- transmitters intended
- transmitters
- 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
Links
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M3/00—Conversion of DC power input into DC power output
- H02M3/22—Conversion of DC power input into DC power output with intermediate conversion into AC
- H02M3/34—Conversion of DC power input into DC power output with intermediate conversion into AC by dynamic converters
- H02M3/38—Conversion of DC power input into DC power output with intermediate conversion into AC by dynamic converters using mechanical contact-making and -breaking parts to interrupt a single potential
- H02M3/40—Conversion of DC power input into DC power output with intermediate conversion into AC by dynamic converters using mechanical contact-making and -breaking parts to interrupt a single potential wherein the parts are rotating and collectors co-operate with brushes or rollers
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR872903T | 1941-06-05 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR872903A true FR872903A (en) | 1942-06-23 |
Family
ID=9359113
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR872903D Expired FR872903A (en) | 1941-06-05 | 1941-06-05 | Improvements to radiotelegraph transmitters intended for research in the upper atmosphere |
Country Status (1)
| Country | Link |
|---|---|
| FR (1) | FR872903A (en) |
-
1941
- 1941-06-05 FR FR872903D patent/FR872903A/en not_active Expired
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