Moderators: Dave Moll, Andrew Davie, Steve Anderson
Klaas Robers wrote:Steve, try to connect a 10k resistor at the output and look again at the wave form. The wave may show then some sag.
Klaas Robers wrote:It is THE problem for cassette recorders, even reel tot reel recorders. Happily we have CD-R nowadays.
I remember when there were combination gramophone/wire recorders. The rim of the gramophone turntable served as the take-up spool for the recording wire.Steve Anderson wrote:Now if that's not in the spirit of mechanical TV, I don't know what is! Open reels, rotating mechanical parts, Andrew should be drooling!
Stephen wrote:It would be fun to have a NBTV wire recorder wherein a hub on the scanning disc drive shaft serves as the wire take-up spool. That would be 1930s style technology!
I like it! But at 12 1/2 revs per sec disc speed the wire take up spool would only be approx 5/8 inches dia. as wire speeds were 24 inches per sec.
Steve Anderson wrote:I like it! But at 12 1/2 revs per sec disc speed the wire take up spool would only be approx 5/8 inches dia. as wire speeds were 24 inches per sec.
Do you mean there was actually a standard? I find that amazing! I guess the tape recording industry eventually settled on speeds that were a factor of two from each other to preserve what sanity was left. Even the Compact Cassette inherits its 4.76cm/s speed from open reel recorders.
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