Archive for September, 2019:

2019-09-16 Spy Satellite History

I have been reading the series about the spy satellites and their developments during the Cold War Era circa the 1960s and after. There was a lot of debate on whether or not to spend hundreds of millions of dollars on developing advanced spy satellites to spy on the Soviet Union and its satellite countries.

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2019-09-09 Zenith Royal 475 Information

more text below Zenith Royal 475 ARF project & service info links: https://antiqueradios.com/forums/viewtopic.php?f=4&t=233319 https://www.antiqueradios.com/forums/viewtopic.php?f=4&t=226370 https://www.antiqueradios.com/forums/viewtopic.php?f=4&t=235052 The Zenith factory schematic and PCB layout is located on page 185 of the Beitmans service literature which is freely available on-line: https://www.americanradiohistory.com/Archive-Rider/BEITMAN-SUPREME/Beitman-1961.pdf ** also posted to FB group vintage transistor radios Usually the capacitors are the problem. There are

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2019-09-07 2 LED Lights On One Supply

I got some 10W warm white LEDs, and I have some cool white LED strips and they’re both running in parallel off the same 12V supply. But they’re not the same voltage so I had to do some experimenting. The 10W LED is actually a group of 3 by 3 in series – parallel on

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2019-09-05 Climate Change:: Both Sides Of The Story

I’ve been spending a lot of time reading both sides of the issue of Climate Change. The biggest thing that I get from this is that it’s much more complicated than the proponents and opponents make it out to be. The proponents say this is the end of the world, but they are basing their

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2019-09-03 ‘The Cosmic Inventor’ Fessenden Book

I got the book on Reginald Fessenden and I’ve been reading it the last few days. It’s a thin book, the story was first published in a journal. Fessenden was an early pioneer of wireless AKA radio. He deserved more credit than he received, he was before Marconi but Marconi got most of the publicity.

2019-09-01 Book The Chilling Stars by Svensmark And Calder

I’ve been reading The Chilling Stars by Svensmark and – It’s about the research that Svensmark has done on climate history an why the hot or cold climates have not correlated with the amount of carbon dioxide (CO2) in the atmosphere at that time. The climate is regulated by many factors, one of these is

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