Though I have only limited experience with the stuff, this sounds like a job for POTA. Start w/ 750 ml of water at 185F, add 30 grams of sodium sulfite, then 1.5 grams of phenidone. Make up to 1 liter. That's it- worlds simplest developer. Anchell says about 11 1/2 to 15 minutes at 68F. Doesn't keep- make as needed.(posted 8699 days ago)