We previously showed a 1947 radio built into a toy telephone.  The December 1958 issue of Electronics Illustrated improved upon the concept by turning the radio into a two-transistor model, complete with a tuning knob attached to the dial.  The radio switched itself on and off automatically thanks to a mercury switch installed in the receiver.

The two-transistor circuit “reflexed” one of the transistors by using it as both an RF and AF amplifier, allowing Junior to pull in all of the local stations with good volume.  And perhaps, if conditions were good, he might pull in an out-of-town station, or perhaps his deceased grandmother, as shown in the 1961 Twilight Zone episode shown here.