Oscillators – With distributed parameter resonator – Coaxial or shielded line type
Patent
1976-11-15
1978-05-23
Grimm, Siegfried H.
Oscillators
With distributed parameter resonator
Coaxial or shielded line type
331177R, H03B 518
Patent
active
040913376
ABSTRACT:
An adjustable feedback in a pencil tube oscillator is provided by a pick-up element closely spaced from the center conductor of the output cavity of the oscillator with the pick-up element connected via a short length of rigid conductive wire to the cathode electrode in the input cavity. This pick-up element is a thin sheet of deformable conductive material fixed to the end of the rigid wire in a manner that permits the sheet to be easily bent toward or away from the center conductor to accommodate adjustment of the feedback coupling capacitance.
REFERENCES:
patent: 2779873 (1957-01-01), Tykulsky
Grimm Siegfried H.
Rasmussen Paul J.
RCA Corporation
Troike Robert L.
Whitacre Eugene M.
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