In hunting down Phenidone/ascorbic acid developers, I have found that the original article was written by Patrick Gainer in the Nov/Dec 1994 issue of "Darkroom & Creative Camera Techniques." The publisher has informed me that they are out of back issues of that issue. Although I found the Gainer's formula elsewhere, I need to know how he arrived at the choice of ingredients, chemical proportions chosen, variations, and usage experience as explained by Mr. Gainer. If anyone has the original issue, I would be happy to arrange to pay for a Xerox copy and postage. I can also receive a fax if I can coordinate with the sender to set my computer up to receive it.(posted 9200 days ago)