Tuesday, March 29, 2016

Parts of a radio receiver, 1954

The New Wonder Book Cyclopedia of World Knowledge.  Volume X.  International Press, 1954.


Anonymous said...

The illustration doesn't show it, but the cabinets of such radio receivers were often made of brown Bakelite with a fibreboard back cover. The back covers had holes in them for the sake of ventilating the heat given off by the vacuum tubes' filaments. The ventilation holes also passed the small amount of light emitted by the tubes' filaments.

I recall listening to Foster Hewitt's coverage of Saturday night hockey games in a darkened room with my older sister. The light cast from the back of the radio was the warmest, most comforting light I've ever known.

The Duke said...

What a great memory! Thanks for sharing this.

I remember building a tube radio in high school shop. For some reason, I particularly remember tuning the IF transformers by inserting a small flat-bladed screwdriver through the hole in the top. We had to learn all of the theory before actually constructing the set. Shop in those days was certainly no bird course.