A tube caddy or tube carrying case is a type of carrying case used for storing and transporting vacuum tubes. They were carried by repair technicians who performed home service calls in the days when radios and television sets were too large and heavy for the average homeowner to bring to a repair shop.
A tube caddy or tube carrying case is a type of carrying case used for storing and transporting vacuum tubes. They were carried by repair technicians who performed home service calls in the days when radios and television sets were too large and heavy for the average homeowner to bring to a repair shop.
Source: Wikipedia "Tube caddy" · CC BY-SA 4.0
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