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Variable inductive resonant circuit arrangement having a diamagnetic core for the UHF range

  • US 3,899,758 A
  • Filed: 05/01/1974
  • Issued: 08/12/1975
  • Est. Priority Date: 05/01/1974
  • Status: Expired due to Term
First Claim
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1. A variable, predominately inductive resonant circuit assembly for the UHF range of a transistorized UHF television employing varactor tuners comprising:

  • a threaded member of insulating material disposed within an aperture of a printed circuit board;

    an arcuate conductor strip having apertures surrounding the extreme periphery thereof and having less than one turn surrounding and affixed to said threaded member of insulating material;

    a core of diamagnetic material disposed within said threaded member of insulating material, said core including means for adjustment; and

    varactor diode means coupling said arcuate conductor strip to a potential reference level.

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