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Old 2nd Feb 2023, 10:39 pm   #480
FERNSEH
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Join Date: Mar 2005
Location: Gateshead, Tyne and Wear, UK.
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Default Re: Baird T5 restoration project.

Hello Jac,
the 15MW4 CRT has a 42mm neck and the Cossor CRT in the T23 it is 34mm. Both tubes operate on 5KV EHT.
Going forward in time, the 110* CRTs introduced in 1958 the neck diameter was reduced to 28.5mm from 38mm in earlier 70 and 90* tubes.
Measures to reduce the scanning power required by wide deflection angles.
The scanning angle in the Cathodevisor tube must be only 30 degrees or so.

DFWB
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