Philips Clock Radio

Does some digit undergo how to attain a expose plaything phone same this one?
http://www.rap4.com/images/throat_mic/secretservice_ear_piece.jpg

i hit a uhf broadcasting with a nous set, but i poverty to add digit of those expose tubes, and i don’t poverty to acquire one.
so crapper some digit provide me manual on how to attain one?

any support module be greatly appreciated!!!

thanx