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The Baird T-5 linked to above by John is what I call the 7-knob version. The center knob was the Baird/EMI switch for the two mechanical/electronic standards available for the BBC tests in Nov. 1936. In my pic above of my two sets, you can see the set on the right is missing the center standards knob. EMI won the contest with 405 line electronic and no need for a standards switch which puts my set just a bit later than November. By the time the T-23 came along, the sets were much more electronically sophisticated and customer knob count went down.
Jeffrey...Bonhams was very kind on the commission. Their catalog and help is worth it. They sent me a note today explaining that a curator in Britain did the text. The text seems to resemble the writing style of the earlier Baird auction. And now I have to find my autographed copy of Bennett-Levy's book of his collection.
And thanks to the rest of you for your encouragement. It is good to hear and I am having fun posting this bit of history.
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“Once you eliminate the impossible...whatever remains, no matter how improbable, must be the truth." Sherlock Holmes.
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