Monk,take good care of your 246,It is in my opinion the best portastudio tascam ever made.A classic. You know what a tank it is,as mentioned before,use tascam cleaning products,Rubber cleaner RC-2 and head cleaner HC-2. and clean before you use it and after you use it. YOU CANNOT OVER CLEAN! Also you must degauss the heads.Do not touch the heads with the tip of the wand,pass over the heads slowly, and while the wand is still on,move at least 4 feet from the 246 before turning it off. the farther the better.VERY IMPORTANT,Do this with the 246 UNPLUGED!