November 1953 Radio-Electronics
[Table of Contents]
Wax nostalgic about and learn from the history of early electronics.
See articles from Radio-Electronics,
published 1930-1988. All copyrights hereby acknowledged.
I'm always tempted to wax
nostalgic over ads like this one since they remind me of more care-free childhood
and early teenage years when our household had the typical single television set
with an antenna on the roof and a 300 Ω twin lead cable running
haphazardly down the roof surface and over the metal gutter, stretching under
the eave to where it was crushed between the window sill and lower window pane,
and snaked along the wall and floor to the TV. In the early days, our antenna
was fixed (no rotator). Situated in
Mayo, Maryland, about midway between Baltimore and Washington, D.C., where
our nearest broadcast stations resided, we somehow managed to get acceptable
reception on our low-end black & white television. I don't recall in which
direction the antenna was pointed (maybe northwestish to cover both directions
equally). It wasn't until sometime in the early 1970s that we finally got our
first color TV that the system showed its weakness. The color TV signal is much
more complicated and is more sensitive to low signal-to-noise ratio due to its
more critical timing for voltage levels and phases. By about 1975, I had had
enough and volunteered to put up a better antenna with a
rotator and high(er) quality twin lead designed for color TV signals. It
made a huge difference, and we were even able to pick up UHF signals that were
never tunable before.
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