Quote:
Originally Posted by trinescope
That 1958 Eisenhower video tape looks really good even today,...
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I suspect a large part of that is due to it being recovered with a later state-of-the-art quad machine, which would have had much more capable servos and correction circuits than the 1958 machine that recorded it. Remember, the match between recording heads of the first quad machines was so rough that the same head assembly that recorded the tape had to be used for playback. This was improved over time for monochrome, but early color tape was often plagued by visible bands of different color, noise level, moire', etc.
By the mid 60s, the machines were so good at playing each other's tapes, even in color, that they could be used for the ten-second delay at the World's Fair RCA exhibit just by running 150 inches of tape from the recording deck to the playback deck.