Hi There, Lets not discount the fact that there may be a small piece of metal shaving that has worked its way into the center of the magnet and is lightly brushing the coil assembly, making it stick. This is more common than you think. a Simpson "S" meter on a Collins Amateur Receiver I own had this problem. What really suprised me that the Simpson meter had never been taken apart before, so this was a factory included screwup!! After some head scratching, and finally taking the meter out and the movement apart, and unbolting the two screws that hold the coil assembly in, I was able to "wipe" the little piece of metal out of the magnetic hole. I reasembled the unit, and its working fine to this day.... Oh, BTW, since this is a battery test meter, I highly doubt that the movement would be a "taut band type" as these are mostly used on high $$$ wattmeters and bench test multimeters that don't get bumped around alot. One more final thought.. You may have had one of the balance wires fall off, and may be sitting in the bottom of the meter. This item will look like a tiny wrapped coil, and goes on one of the two prongs near the center of the movement.. Sometimes the parafin used to hold these non ferrous balance weights fall off, also causing a meter to do what you have said.. Best Luck! Anthony, WB8MLA