Cordless Christmas Tree Bulbs
![coordless-xmas-tree-bulbs coordless xmas tree bulbs](https://www.innovation-creativity.com/wp-content/uploads/2020/05/coordless-xmas-tree-bulbs.jpg)
Cordless Christmas tree bulbs that could be spotted at random. They’d operate off radio-frequency currents transmitted by a device like a Tesla coil.
By K.L.Swinth, Seattle.
December 1958
Alternatively, get a chain of LED Christmas tree lights from Amazon. (affiliate link)