Quote Originally Posted by Paul Verizzo View Post
I have no experience using only activator, but if I may tread on ice of my own making, your formula looks perfectly appropriate.
Paul I tried the Ilford Activator and it wasn't quite right, so I made my own, yes dilute Sodium Hydroxide, but it needed sulphite and a small amount of bromide to get the right contrast and keep the highlights clean with the Ilford papers, I guess I think I saw a formula in one of Clerc's books, and then adapted it to get the best results. The machine & activator was used for many thousands of RC prints.

Older Agfa papers I used designed specifically for activator & stabiliser worked as Gadget suggests in just an alkaline solution.