Forgive me, but we must not neglect the resonant tolerance of the can tranceiver.
It would be truly irresponsible to solely dedicate our tireless study to the material properties of the connecting string. While the tension and transmission coefficients of the string should not exceed limitis which would constitute harm to the user, the can should be constructed from the proper grade of tin and with a minimum of internal coating in order to reduce damping characteristics. In the case of 1922, where a 16 oz. Campbell's tomato soup can with such properties was used in a Bell step office... I agree with Martin, even if April is ten months away. Len
