GERALD P GRILL
Vehicle Board in Ephrata, PA
License number
Pennsylvania MV015266L
Category
Vehicle Board
Type
Vehicle Salesperson
Address
Address
Ephrata, PA 17522
Professional information
Double-Tuned Output Circuit For High Power Devices Using Coaxial Cavity Resonators
US Patent:
4184123, Jan 15, 1980
Filed:
Sep 19, 1977
Appl. No.:
5/834268
Inventors:
Gerald P. Grill - Ephrata PA
Claude E. Doner - New Providence PA
Claude E. Doner - New Providence PA
Assignee:
RCA Corporation - New York NY
International Classification:
H03F 360, H01P 704
US Classification:
330 56
Abstract:
Coaxial, one-quarter wavelength resonant primary and secondary resonators are employed in conjunction with a tetrode tube to provide, for example, 55 Kw (kilowatts) of output power for VHF, high-band television broadcasting. Coupling between the two resonators is accomplished by connecting an inductance between the center conductors of the resonators. The effective inductance of this connection is varied (and thus the coupling of the resonator circuits is also varied) by the addition of a variable capacitor in series with the inductive connection.