Daniel Patric Tracy

US Patent:

49164090, Apr 10, 1990

Filed:

Jun 15, 1988

Appl. No.:

7/207248

Inventors:

Daniel L. Tracy - Thornton CO

International Classification:

H03F 134

US Classification:

330294

Abstract:

An audio signal conditioning system comprising a power supply for providing a direct current having a predetermined voltage; input gain control device for receiving the audio sound output signals and for controlling gain; a first transistor amplifier connected to the input gain control, the first transistor providing a first amplified output signal from the collector thereof; a second transistor amplifier connected to the first transistor amplifier for receiving amplified signals from the first transistor amplifier and providing a second amplified output signal from the collector thereof; a negative feedback circuit between the first transistor amplifier and the second transistor amplifier for transmitting negative feedback signals from the emitter of the second transistor amplifier to the base of the first transistor amplifier and a regenerative feedback circuit and an associated tone control circuit between the first transistor amplifier and the second transistor amplifier for transmitting regenerative feedback signals from the collector of the second transistor amplifier to the base of the first transistor amplifier.