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Primary Examiner: Rolinec, R. V.
Assistant Examiner: Dahl, Lawrence J.
Attorney: O'Malley; Norman J., Walrath; Robert E., Orner; Robert T.

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Title: Broadband amplifier

Abstract: A broadband amplifier with a negative feedback circuit having a variable resistance means and first and second parallel resistor-inductor combinations for slope control is shown. The variable resistance means establishes the overall frequency response and can be electronically varied to provide automatic gain control. The first and second parallel resistor-inductor combinations provide compensation for deviations from the desired frequency response over respective first and second frequency ranges.


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Inventors: Reed, Frederick Frank (El Paso, TX, US)

Application Number: 528337
Filing Date: 1974-11-29
Publication_date: 1976-03-16
Assignee: GTE Sylvania Incorporated (Stamford, CT)
Primary Class(es): 330/109 330/107, 330/278, 330/293, 330/306
Other Classes:
US Patent Ref:
3023369Feb, 1962Horowitz330/24.
3281708Oct, 1966Rogers et al.330/154.
3418591Dec, 1968Fisher330/109.
3451003Jun, 1969Rheinfelder330/21.
3699465Oct, 1972Pranke330/15.
3781703Dec, 1973Duty330/52.

Other Refs: 247,079
Sep, 1963AU
Other References: Burrows, B.C.J.-"Ceramic Pickups and Transistor Pre-Amplifiers."-Wireless World pp. 56-60, Feb. 1970.