Schematic of LED Absorptive SWR Bridge-Indicator, Circa 2000, Featured in the January 2012 WRO

Details on how to build a "cardboarded" -  as opposed to a "breadboarded" - version of this T-FR LED Absorptive SWR Bridge-Indicator appears in the January 2012 edition of WorldRadio Online magazine: http://www.WorldRadiomagazine.com