I think some of us are wondering, seriously, what you have in that Altoids tin. A friend of mine tells me that a complete HAM radio, capable of sending and receiving around the globe, can fit in an Altoids tin. That could be a good piece of survival equipment.
I have built what are called foxhole radios using germanium diode, safety razor blade, pencil , two thumbtacks and a safety pin and a little wire and lead pencil piece before ....Not sure of the range but with a crystal ear bud it does receive AM and some SW.
That would fit...... or parts for it.
What you suggest is a listen only as well I think......
http://www.io.com/~n5fc/dcrx.html