XPost: rec.radio.amateur.moderated, uk.radio.amateur, free.uk.amateur-radio
SolderSmoke Daily News
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Back to the 1970's! Homebrew Keyboards! Don Lancaster's TV Typewriter
Posted: 24 Apr 2022 03:01 AM PDT
http://soldersmoke.blogspot.com/2022/04/back-to-1970s-homebrew-keyboards-don.html
Even though it is outside my normal analog comfort zone, I really liked
this video. Farhan sent it to me, along with this note: --------------As a kid, do you remember Don Lancaster's books? I learnt most of my digital electronics from him. I still have the 7 dollar video generator book on my shelf. He predates the Homebrew Computer Club. In fact, he is probably the reason for the HCC, because
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Looking at the World Through a 1 inch Cathode Ray Tube (the RCA 913)
(videos)
Posted: 23 Apr 2022 03:50 AM PDT
http://soldersmoke.blogspot.com/2022/04/looking-at-world-through-1-inch-cathode.html
Joh DL6ID sent me the above video. We have been e-mailing each other about the W9YEI Television Receiver built in 1939 or so. We have kind of
concluded that the builder used an RCA 913 tube as the CRT. This was an oscilloscope tube and was often described as looking like a metal 6L6 with
a tiny screen on top. This is kind of neat -- like using something from
the old days to peer into the new
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1942 (?) RCA Film on Tubes, Radio, Research, and Television
Posted: 22 Apr 2022 04:07 AM PDT
http://soldersmoke.blogspot.com/2022/04/1942-rca-film-on-tubes-radio-research.html
Here is a very interesting video from RCA. It was released in 1942, but it looks to me as if it was produced BEFORE the Pearl Harbor attack and the U.S. entry into World War II. There is no mention of the war nor of RCA's support for the war effort. All films like this that were produced during
the war have a lot of material about how the company was contributing to
the war effort. So I
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An Eclipse, a Sunset and a Sunrise, all on Mars
Posted: 21 Apr 2022 05:16 AM PDT
http://soldersmoke.blogspot.com/2022/04/an-eclipse-sunset-and-sunrise-all-on.html
https://mars.nasa.gov/resources/26671/insight-captures-a-martian-sunrise-and-sunset/?site=insight#:~:text=NASA's%20InSight%20lander%20snapped%20a,or%20sol%2C%20of%20the%20mission.
https://www.space.com/perseverance-rover-mars-solar-eclipse-video
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