radios are fascinating in that they use no batteries and no wall socket
electricity. They get their power solely from the antenna to which
they are clipped.
This 1959 Aud-Ion has only three parts inside. The rotating dial moves a cam that actuates an iron core within a coil, thus changing the tuning. There is no on-off switch or volume control.
I remember clipping a radio like this to the bedsprings at night and listening to whatever KBYG had to offer, which wasn't much.
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