GB285723A - Improvements in electric transformers for use at radio frequencies - Google Patents

Improvements in electric transformers for use at radio frequencies

Info

Publication number
GB285723A
GB285723A GB1920027A GB1920027A GB285723A GB 285723 A GB285723 A GB 285723A GB 1920027 A GB1920027 A GB 1920027A GB 1920027 A GB1920027 A GB 1920027A GB 285723 A GB285723 A GB 285723A
Authority
GB
United Kingdom
Prior art keywords
housing
winding
wound
radio frequencies
transformers
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
Application number
GB1920027A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
London Electric Wire Company and Smiths Ltd
Original Assignee
London Electric Wire Company and Smiths Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by London Electric Wire Company and Smiths Ltd filed Critical London Electric Wire Company and Smiths Ltd
Priority to GB1920027A priority Critical patent/GB285723A/en
Publication of GB285723A publication Critical patent/GB285723A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F21/00—Variable inductances or transformers of the signal type
    • H01F21/02—Variable inductances or transformers of the signal type continuously variable, e.g. variometers
    • H01F21/04—Variable inductances or transformers of the signal type continuously variable, e.g. variometers by relative movement of turns or parts of windings

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Coils Or Transformers For Communication (AREA)

Abstract

285,723. Wildy, E. L., and London Electric Wire Co. & Smiths, Ltd. July 19, 1927. Transformers.-A radio frequency transformer comprises a winding formed of disc coils a, a<1> within a housing b, band separated either by rigid cardboard separators or by a rubber ring g. In the latter case, the inductance of the winding may be varied by means of a nut c<1> on a bolt c passing through the two halves of the housing. The second winding e' is wound on a former e formed externally of the housing b or detachably mounted thereon by pin and socket elements m, l. A third winding may be wound on the periphery of the housing b. Plug elements k for connection with the external circuits are also provided on the housing b.
GB1920027A 1927-07-19 1927-07-19 Improvements in electric transformers for use at radio frequencies Expired GB285723A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1920027A GB285723A (en) 1927-07-19 1927-07-19 Improvements in electric transformers for use at radio frequencies

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1920027A GB285723A (en) 1927-07-19 1927-07-19 Improvements in electric transformers for use at radio frequencies

Publications (1)

Publication Number Publication Date
GB285723A true GB285723A (en) 1928-02-23

Family

ID=10125398

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1920027A Expired GB285723A (en) 1927-07-19 1927-07-19 Improvements in electric transformers for use at radio frequencies

Country Status (1)

Country Link
GB (1) GB285723A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE765696C (en) * 1934-08-03 1953-02-23 Marconi Wireless Telegraph Co Overlay receiver with aperiodic input circuit and a control unit for remote setting that is located outside the actual device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE765696C (en) * 1934-08-03 1953-02-23 Marconi Wireless Telegraph Co Overlay receiver with aperiodic input circuit and a control unit for remote setting that is located outside the actual device

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