does the hieght of the amp change depending on lot # or where the omnadren is being produced for distribution? one amp i have lot# 10500 it is 6.5 mm or 1 3/4 inches it has omandren written in english .the other is lot # 10602 it is 4.5 mm or 1 1/2 inches it has polish writing on it...:unsure:
