Radio News Abox Ad: Aug. 1928
This advertisement from the August, 1928 Radio News magazine
shows the Abox A.C. converter, manufactured by the Abox Company
of Chicago, Illinois.
The earliest consumer radios were battery-powered and typically required
two batteries, an A battery to heat the tube filaments, and a B
battery to power the rest of the radio.
Battery replacers of this type were very popular, replacing the batteries of the
time, which were bulky, expensive, and contained caustic chemicals. The project
area of our website provides plans for building an inexpensive, modern
battery eliminator.
|
©1995-2023 Philip I. Nelson, all rights reserved
|