JOSEPH R JASINSKI
Engineers in Reading, PA
License number
Pennsylvania PE021435E
Category
Engineers
Type
Professional Engineer
Address
Address
Reading, PA 19607
Professional information
Double Tuned Input Circuit For Television Transmitter Amplifier
US Patent:
4070627, Jan 24, 1978
Filed:
Jun 3, 1976
Appl. No.:
5/692547
Inventors:
Joseph Richard Jasinski - Shillington PA
James Bruce Pickard - Quincy IL
Claude Edward Doner - New Providence PA
James Bruce Pickard - Quincy IL
Claude Edward Doner - New Providence PA
Assignee:
RCA Corporation - New York NY
International Classification:
H04B 104, H04N 514, H04N 538, H03F 360
US Classification:
325127
Abstract:
A substantially constant impedance is developed across the input terminals of a linear amplifier used in a very high frequency (VHF) low band television transmitter. The input circuit consists of lumped components arranged in a capacitively coupled double tuned configuration. A relatively long coaxial transmission line system is used to connect the input circuit to the terminals of the tube. The coaxial line system and input circuit tunes across the entire VHF low band of 54 to 88 MHz. An input voltage standing wave ratio (VSWR) equal to or less than 1. 2:1 is achieved over each six MHz channel.