nullator/norator amplifier theory

Status
This old topic is closed. If you want to reopen this topic, contact a moderator using the "Report Post" button.
back in the 70's or 80's i had a deck of 3x5 printed cards (i think from national semiconductor or analog devices) that described NULLATOR/NORATOR theory. it's a simplification of op amp theory using a linked pair of devices called nullators and norators. the nullator always wants to see zero voltage across it, and the norator always does what it must to meet that condition. anybody got a clue where those cards came from, and if they're still available?
 
Status
This old topic is closed. If you want to reopen this topic, contact a moderator using the "Report Post" button.