Tom hosts Tuesday's Treasures.
CBC (Canadian Broadcasting Corporation) on Front St. used to have a museum. It is now permanently closed, no idea why, as they have all that stuff still in a room.
While the main CBC Museum closed in 2017 to make way for a studio, some items, such as the Ivan Harris Gallery, have been visible in the lower level of the CBC building on Front Street.
The term CBC monoscope refers to a specialized vacuum tube used by the Canadian Broadcasting Corporation to generate the iconic "test patterns" seen when stations were off-air or performing technical alignments.
Unlike a regular camera that captures external light, a monoscope tube had the test pattern physically printed or etched inside it.
The "Indian Head": One of the most famous patterns generated this way was the Indian-head test pattern, which CBC used in conjunction with its own monochrome patterns from the 1950s into the early 1980s.
Function: It provided a consistent, high-quality signal that didn't require a live camera, allowing technicians to adjust focus, resolution, and brightness on monitors and transmitters.
We have a similar museum, but I'd love to see the Toronto museum. I've not heard the name luggable telephone but I know what it is. I can't even guess how the signals were sent.
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