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Definition: a modification of the basic two-transistor current mirror that incorporates an emitter degeneration resistor for only the output transistor, enabling the current source to generate low currents using only moderate resistor values and therefore a small area [d] [e]
This article written by myself with figures generated by myself originated at this date as a copy of the article on WP as of that time with the same name Widlar current source. John R. Brews 19:28, 17 December 2010 (UTC)