GB640690A - Improvements in or relating to audio frequency transformers - Google Patents
Improvements in or relating to audio frequency transformersInfo
- Publication number
- GB640690A GB640690A GB1631/47D GB163147D GB640690A GB 640690 A GB640690 A GB 640690A GB 1631/47 D GB1631/47 D GB 1631/47D GB 163147 D GB163147 D GB 163147D GB 640690 A GB640690 A GB 640690A
- Authority
- GB
- United Kingdom
- Prior art keywords
- primary
- windings
- transformer
- sections
- type transformer
- 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
- 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
- H01F19/02—Audio-frequency transformers or mutual inductances, i.e. not suitable for handling frequencies considerably beyond the audio range
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Multimedia (AREA)
- Housings And Mounting Of Transformers (AREA)
Abstract
640,690. Transformers. VACKAR, J., and KLIKA, V. Jan. 19, 1948, No. 1631. Convention date, Jan. 21, 1946. [Class 38 (ii)] In order to eliminate higher frequency distortion in high output class B audio amplifiers, a push-pull transformer has two primary windings which are so arranged relatively to the secondary that the mutual coupling of the primary windings is tighter than that of the primary and secondary windings. Fig. 3 shows a shell-type transformer having a secondary winding S at each side of which are arranged section windings P1, P2 of the primary windings. Fig. 4 shows a core-type transformer carrying cylindrically formed windings. The secondary S is concentric with and midway between the primary sections P1, P2. In a modified arrangement, a core or shell-type transformer has the primary sections arranged on one side of the secondary and each primary may comprise more than one pair of sections. Preferably, the transformer is filled with oil having a lower dielectric constant than transformer oil and there is connected across the loading resistance of the secondary side a condenser the reactance of which at the highest frequency to be transmitted is equal to the said resistance.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CS640690X | 1946-01-21 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB640690A true GB640690A (en) | 1950-07-26 |
Family
ID=5454199
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1631/47D Expired GB640690A (en) | 1946-01-21 | 1948-01-19 | Improvements in or relating to audio frequency transformers |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB640690A (en) |
-
1948
- 1948-01-19 GB GB1631/47D patent/GB640690A/en not_active Expired
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