Doing a bit of rummaging - you can't beat a good rummage - and found this!
It's a radio believe it or not. Capable of receiving anything up to 2 stations - you click the switch - it dates from the 1950s I believe and was given to me by my grandfather sometime around 1962. You plugged it into the microphone socket of an amplifier or a tape recorder and it had two small screws on the rear to tune each of the radio stations. You attached a long piece of wire to the screw on the top to act as an aerial.
I've never managed to get it to work, but it would never cope anyway with the many radio stations we have now, crammed into small frequency ranges. It would probably pick up 6 at once even if I could get it to work!
