Quote:
Originally Posted by decojoe67
. . . Sales of TV's were very poor in the pre-war days and there was a lot of problems both with the sets and the availability of programming. . . .
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Quote:
Originally Posted by tubesrule
I'm not aware of any specific problems related to pre-war receiver design and operation.
These sets performed fine for their times, and are on par with many early post-war sets. . . .
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Quote:
Originally Posted by dtvmcdonald
. . . . When the band changes happened, they had to rewind the coils, and it wasn't pretty. . . . .
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For an interesting article on converting a pre-war Televiser to 1941 NTSC with post-war frequency changes, go to:
http://www.americanradiohistory.com/...Page_Guide.htm
and download the
Radio-Craft September 1946 issue.
(It will be much easier to read directly from the PDF than to try to read it on line.)
Go to page 832 for
Rebuilding a Televiser. It is interesting how they describe removing a single loop on the tuner channel coils to make it reach the newer higher channels.
By the way, the set they used to illustrate the conversion was not a Du Mont, but an Andrea KTE5 kit.
http://www.earlytelevision.org/andrea_kt-e-5.html
Also there is an interesting editorial,
Is Television Really Here? on page 821. Hugo Gernsback quotes Commander E. F. MacDonald, Jr. President of Zenith Radio Corporation, whose prediction turned out to be completely wrong.
James