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Old 4th Dec 2018, 5:17 pm   #15
FERNSEH
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Join Date: Mar 2005
Location: Gateshead, Tyne and Wear, UK.
Posts: 6,224
Default Re: Baird T5 retoration project.

That's right a 15" CRT in a pre-war TV was a really big screen, typically 10 X 8 inches. Didn't Baird Television Ltd make a speciality of making really large CRTs? Isn't there a story about 22" round tube being made.

The Cathodevisior tubes fitted in the T5 had directly heated cathodes which means the video drive must be supplied to the grid or as it was called then, the Wehnelt electrode.

DFWB.
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