GB268848A - Improvements in aerial tuning with reaction units for radio service - Google Patents

Improvements in aerial tuning with reaction units for radio service

Info

Publication number
GB268848A
GB268848A GB3026525A GB3026525A GB268848A GB 268848 A GB268848 A GB 268848A GB 3026525 A GB3026525 A GB 3026525A GB 3026525 A GB3026525 A GB 3026525A GB 268848 A GB268848 A GB 268848A
Authority
GB
United Kingdom
Prior art keywords
coil
tuning
knob
inductances
rod
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
GB3026525A
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.)
HENRY RUSTIGE JUNIOR
Original Assignee
HENRY RUSTIGE JUNIOR
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 HENRY RUSTIGE JUNIOR filed Critical HENRY RUSTIGE JUNIOR
Priority to GB3026525A priority Critical patent/GB268848A/en
Publication of GB268848A publication Critical patent/GB268848A/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
    • H01F21/12—Variable inductances or transformers of the signal type discontinuously variable, e.g. tapped

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Magnetic Resonance Imaging Apparatus (AREA)
  • Toys (AREA)

Abstract

268,848. Taylor, J., and Rustige, H. Dec. 1, 1925. Inductances; wireless tuning-apparatus, adjustment devices for. - In a wireless receiving set having two or more aerial tuning inductances 6, 6a for two or more ranges of wave-length, a separate reaction coil 5, 5<a>, is provided for use with each inductance coil. The inductance and reaction coils are changed simultaneously by moving the lever 9 which turns a sleeve 4 carrying the coil 6a, contacts 23 mounted on the bobbin being adapted to make the required connections through plates 28 mounted on the base 1. The coupling between the coils is adjusted by turning the knob 10 fixed to the tube 8, which is internally threaded to engage the screwed portion 7<a> of a rod 7, 7<a>, 11. Rotation of the knob 10 causes axial movement of this rod, and the spools 5, 5<a>, are engaged by projections 16, 16a, protruding through longitudinal slots in the fixed tube 3.
GB3026525A 1925-12-01 1925-12-01 Improvements in aerial tuning with reaction units for radio service Expired GB268848A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3026525A GB268848A (en) 1925-12-01 1925-12-01 Improvements in aerial tuning with reaction units for radio service

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3026525A GB268848A (en) 1925-12-01 1925-12-01 Improvements in aerial tuning with reaction units for radio service

Publications (1)

Publication Number Publication Date
GB268848A true GB268848A (en) 1927-04-01

Family

ID=10304901

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3026525A Expired GB268848A (en) 1925-12-01 1925-12-01 Improvements in aerial tuning with reaction units for radio service

Country Status (1)

Country Link
GB (1) GB268848A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2549789A (en) * 1947-12-31 1951-04-24 Jr Thomas M Ferrill Tank circuit apparatus

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2549789A (en) * 1947-12-31 1951-04-24 Jr Thomas M Ferrill Tank circuit apparatus

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