Abstract: A unique low power dual mode amplifier system for a receiver front end or transmitter is described. The invention is configured to utilize a common gain block element for amplification of both the RF-IF signal components found within a super heterodyne receiver. Replacement of separate gain stages for RF and IF components by a single common gain block offers a substantial power consumption reduction for a receiver or transmitter design. Implementation of the invention is possible using commonly found well known RF or IF circuitry elements. The invention combines several of the basic functions necessary to build a receiver or transmitter including frequency band selection, signal amplification and frequency conversion into a simple topology. An integrated circuit and discrete component type example implementations are provided.