Delta top soil and peat were weighed on a Brainweight 1500 scale, Model
B1500 (Ohaus Scale corp.).
Prior to low-frequency noise measurements, the dc characteristics were measured using an Agilent
B1500 semiconductor parameter analyzer.
Both types would be upgrades of existing models: the new
B1500 conventional tractor--designed for pushbacks and Gate towing--is a more powerful version of its current B1200 tractor.