Thanks for the reply.
I was thinking with all the different IR tanks on the market and they like to copy each other that one of them may have used the same signal device that would also be affective with what Tamiya uses.I know with universal TV remotes they have the ability to change over and match many different brands of TV's.Thought so many guys have such a varity of tanks that they may have allready tested for this,but have never seen any comments about it.I did see a comment on someone trying a lazer light on one that did not apear to have any effect on them. BIGMIG