Originally Posted by brric
You only need one white to the receptacle. There are a tabs between the screws on the receptacle. On the hat(brass screw) side of the recep break this tab away. Put a red wire to the top half of the recep and a black wire to bottom half.
Today seems to be a day I should have not done anything but I can't bear to leave this unresolved today.
Current situation at the box with the outlets and where the new run branches off:
Nut#1:all the whites (Two original cables' whites; cable up to new switch/light white;jumper to silver side/bottom 1/2 of outlet)
Nut #2:all the blacks (two original cables;cable up to new switch/light; jumper to brass side/bottom 1/2 of outlet).
Brass side tab broken; silver side tab in place
Reds to both terminals on top 1/2 of outlet.
If main ORIGINAL switch controlling the top 1/2 of the outlets is ON, breaker trips immediately.
If off, new switch/light works as intended, bottom outlets hot; top outlets not hot
Thanks for bearing with me on this clumsy day.