John Drake's Gadget of The Week

  A micro tape recorder hidden in a ladies cigeratte case, yes I did say ladies cigarette case. This Drake uses to record Leanka speaking on the telephone via a bug he placed under the table in Leanka's apartment in the 'Danger Man' episode 'I'm Afraid You Have The Wrong Number.'
   Then later Drake pugs the micro tape recorder into a speaker and listens to Leanka dialling a telephone number over and over, time and time again, and with the aid of a telephone Drake finally works out the number Leanka dialled.

I'm Obliged