No, there's a mixup here. QST would never publish a Command Sets conversion article like the one I am thinking of. I'm pretty sure about the title, which referred to paired sets to make a 'luggable' or mobile system. -Hue >Hue, That article was published in QST of March 1960, called “A Poor Man’s Q Multiplier” by SK Lew McCoy, W1ICP. Respectfully, Phillip WB4PAC