That was the famous one day arm program. Which you did a lighter set of tricep & bicep, just for the pump, every hour on the hour. Usually one set, but some times 2, never approaching the point of muscle failure. 8 to 10 reps. Needed a complete day of training, and as Funk said, better in a home gym. Funks version is a little different, though the same basic idea. Were not suppose to workout another 2 days after the all day program. Time for healing and muscle growth.
Also the idea was to increase the protein flow. So protein shakes, along with a lighter meals throughout the day. Should work better now days because of better quality whey protein and creatine added during the day. Some use amino acid supplements.
Keeping the area warm was important. Long sleeves and even applying a heating element, like a lotion, rub, etc. Wanting to keep that blood in the arm area. Between 6 to 8 arm workout in that selected day. Some gained 1/8 to a 3/8 of an inch. Which may not sound like a lot, but adding to a 16" arm, could be somewhat impressive. Maybe after months of no growth at all, even slight gains can be good news..
Worked very well for calves, I have been told. Good Luck.