“So i’d like to make my own samples sound like i sampled them from some old vinyl with the grit and crackling that old vinyl can give.”
Two LFO’s to control pitch to give you wow and flutter. one at a high frequency for that old warble, then another with a much lower frequency and low depth to give a slow warping feel. Then add the OT Lo Fi effect and you can get some really dirty old warbley messe dup sounds.