1940 Little Giant Push Button AC DC Four-tuber
Popular Mechanics March 1934
Push buttons used to tune the radio became popular and stayed popular for many years, but didn’t last until the present day
Tubes Used 45Z5, 50L6-GT, 12J7-GT, 12K7-GT another 4 Tube Set
1940 Little Giant Push Button AC DC Four-tuber Popular Mechanics March 1940