The basics …
13 gal wastebasket with touch lid
9″ desktop fan (recycled in my example)
x2 lamp sockets with 40 watt incandescent light bulbs
x2 threaded metal rods with x4 matching lock nuts
1″ stainless steel pipe screens to cover 3/4″ ventilation holes
A biltong recipe
The drying box needs to be well ventilated, top and bottom, in a clean room with fresh, dry air. Start off cool 22-24ºC on the first day, increasing to 30-33ºC on the remaining days. Either adjust the fan speed or the number of lamps burning to achieve these temperature ideals.