D-76H is this one. Had it written down. Will mix a liter of it soon.(posted 8489 days ago)Water 52°C 750 ml Metol 2.5g Sodium Sulfite 100g Borax 2g Water to 1 liter
I've heard many times that the packed D-76 used phenidone, and saw it again today on www.silverprint.co.uk