NL29678C - - Google Patents
Info
- Publication number
- NL29678C NL29678C NL29678DA NL29678C NL 29678 C NL29678 C NL 29678C NL 29678D A NL29678D A NL 29678DA NL 29678 C NL29678 C NL 29678C
- Authority
- NL
- Netherlands
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F19/00—Fixed transformers or mutual inductances of the signal type
- H01F19/04—Transformers or mutual inductances suitable for handling frequencies considerably beyond the audio range
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
- H03J3/00—Continuous tuning
- H03J3/02—Details
- H03J3/06—Arrangements for obtaining constant bandwidth or gain throughout tuning range or ranges
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Multimedia (AREA)
- Amplifiers (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US268356A US1771913A (en) | 1928-04-07 | 1928-04-07 | Amplifying system |
Publications (1)
Publication Number | Publication Date |
---|---|
NL29678C true NL29678C (ja) |
Family
ID=23022612
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
NL29678D NL29678C (ja) | 1928-04-07 |
Country Status (3)
Country | Link |
---|---|
US (1) | US1771913A (ja) |
GB (1) | GB309187A (ja) |
NL (1) | NL29678C (ja) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3835399A (en) * | 1972-01-24 | 1974-09-10 | R Holmes | Adjustable electronic tunable filter with simulated inductor |
-
0
- NL NL29678D patent/NL29678C/xx active
-
1928
- 1928-04-07 US US268356A patent/US1771913A/en not_active Expired - Lifetime
-
1929
- 1929-04-05 GB GB10645/29A patent/GB309187A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
GB309187A (en) | 1930-10-06 |
US1771913A (en) | 1930-07-29 |