Yes, they all kept their secrets and some went out of business just the same, and their secrets were lost forever. But, as I maintain in another post, the secret is that there is no secret. Just my opinion, anyway.
not sure that is isn't a secret
its a non published secret formula,
with hard to get ingredients ..
hard enough to source that they had to find
someone to supply them with componants when their
usual source stopped providing it.
if it was made with glycin, they could have gotten all of the ingredients
from the photographers formulary, they are the last place to make it..
sure, some kept their secrets and they are gone forever, that is what secrets are ... secrets..
glad you came up with something that works for you !
since you are so good at this, can you next figure out the ingredients and recipe for
GAF UNIVERSAL DEVELOPER ?
it came in a red can to make 5 gallons worth at once, it lasted at least 30years in adverse conditions
( extreme cold extreme heat + didn't clump up in the can )
looked straw colored ( i don't remember the smell ) and at about 20-30years old ..
the powder was between whiteish and light tan.
the only thing on the can was probably mix with 3.75 gallons of water and top off to 5 gallons
( or something like that )
and
for prints 1:1, 1:2 2 minutes
for films 1:6 6minutes 68ºF
i've been attempting to find the formula since about 1997-8 with no luck
and just decided to use ansco 130 instead ... works OK but works best at 72ºF because of the glycin
thanks in advance for your help !
PS
i know GAF was ansco and before that agfa ansco and before that agfa
and the numbering of their developers didn't carry over from one company name change
to the next and i have PLI references and even historic recipes that have been mailed to me
and none of them are the GAF UNIVERSAL recipe ...