This Pioneer Crystal Rocket Radio model MG-306 was manufactured by Miniman Radio Co. Ltd in Japan circa 1960.
This Miniman Rocket Radio uses a germanium diode to convert radio waves into sound. Germanium is a brittle gray crystalline element that when purified can be used as a semiconductor.
Often these crystal radios from the 1950’s and 1960’s are ruined by melt marks. Unfortunately many owners stored their rocket radios with the attached wires wrapped around the plastic body. Over time the vinyl insulation covering the wires reacts with the plastic body of the radio and inflicts nasty melt marks on it.
It is a good idea to wrap the wires in plastic when in storage.
This rocket radio comes with a gift box, instructions, and the original plastic storage bag with groovy yellow graphics! The gift box also features some great retro space age graphics!
I have seen a similar rocket radio that the advertiser tried to pass off as a transistor radio. To see that advertisement and others click here.
The plastic storage bag.
The alligator clip and earphone.
'Japan' and the model number 'MG-306' are printed on the bottom of the radio.