I used to know where my copy of the book you refer to is at. However after remodeling the house much has been removed. I'll see if I can find it.
It is in an older collection book of Nat Semi app-notes, very old... Blue with orange trim on the cover... Not many of them would be around due to the grade of paper they are printed on, which is not much better then newsprint. I bought it at a hamfest as a child. I used to wonder what the big deal about that circuit was. Now after learning about volt-nuts decades later, I know.
No promises, but I'll try.
Steve