I have really messed up my tension on my moms' old singer. It's a 1948 Singer with knee pedal. Can't seem to get it back to a workable place. I think it's a 66.... or 99. I don't remember. It is a full size machine in a cabinet. Has thread tension on front and feed dog tension on top??? (I think it's feed dogs!) Could you please pm me as I'm having a hard time following a thread .... can't find them after I've started one.BLESS YOU FOR HELPING!