25
20 yen, about how much your average dildo costed
a radio back in 1980 cost 900 dollars.
No radio "sets" were manufactured or sold until well into the 20th Century, like almost 1920 . It was 1888 before scientists first demonstrated that they could generate a radio wave on one side of...
a nicely made radio can range anywhere from 10-100's of dollars. satellite will be more but is much better quality with no static.