NL29397C - - Google Patents
Info
- Publication number
- NL29397C NL29397C NL29397DA NL29397C NL 29397 C NL29397 C NL 29397C NL 29397D A NL29397D A NL 29397DA NL 29397 C NL29397 C NL 29397C
- Authority
- NL
- Netherlands
Links
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F1/00—Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
- H03F1/08—Modifications of amplifiers to reduce detrimental influences of internal impedances of amplifying elements
- H03F1/14—Modifications of amplifiers to reduce detrimental influences of internal impedances of amplifying elements by use of neutralising means
- H03F1/16—Modifications of amplifiers to reduce detrimental influences of internal impedances of amplifying elements by use of neutralising means in discharge-tube amplifiers
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/02—Transmitters
- H04B1/03—Constructional details, e.g. casings, housings
- H04B1/036—Cooling arrangements
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Particle Accelerators (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US291268A US1850858A (en) | 1928-07-09 | 1928-07-09 | Signaling system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL29397C true NL29397C (pt) |
Family
ID=23119622
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL29397D NL29397C (pt) | 1928-07-09 |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US1850858A (pt) |
| FR (2) | FR678056A (pt) |
| GB (1) | GB315219A (pt) |
| NL (1) | NL29397C (pt) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2453433A (en) * | 1946-06-11 | 1948-11-09 | Jefferson Standard Broadcastin | Heat dissipation for electronic tube apparatus |
| US2487460A (en) * | 1946-08-06 | 1949-11-08 | Electrical Engineering And Mfg | Starter-generator for internalcombustion engines |
-
0
- NL NL29397D patent/NL29397C/xx active
-
1928
- 1928-07-09 US US291268A patent/US1850858A/en not_active Expired - Lifetime
-
1929
- 1929-07-01 GB GB20174/29A patent/GB315219A/en not_active Expired
- 1929-07-09 FR FR678056D patent/FR678056A/fr not_active Expired
-
1931
- 1931-08-18 FR FR40780D patent/FR40780E/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR40780E (fr) | 1932-08-23 |
| US1850858A (en) | 1932-03-22 |
| GB315219A (en) | 1930-10-01 |
| FR678056A (fr) | 1930-03-18 |