Wednesday, November 24, 2021

Gloria -- A Netflix Series about a Shortwave Broadcast Station in Portugal

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Rarely if ever will we come across a high quality NETFLIX series built around a shortwave broadcast transmitter.  But that is what we have i...
Tuesday, November 23, 2021

Jagadish Chandra Bose

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Jagadish Chandra Bose (30 November 1858 – 23 November 1937) Acharya Sir Jagadish Chandra Bose, was a Bengali polymath, physicist, biologist,...
2 comments:
Sunday, November 21, 2021

KG7TR's Magnificent 75S-2B Receiver -- Tubes, an Si5351, an Arduino, a Bit of Collins, and a Bit of a Drake 2-B

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  Oh man, I share this with much trepidation because the last time I posted something about the work of Mike KG7TR ,  Pete N6QW said he fel...
3 comments:
Saturday, November 20, 2021

The Double Crystal Lattice Filter in the Swan 240 -- Smoothing it out with a NanoVNA

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In SolderSmoke Podcast #234, I said that I was scrutinizing the filter from the Swan 240 that I had picked up around 1994 in the Dominican R...
2 comments:

Video of SolderSmoke Podcast #234

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See also:  https://soldersmoke.blogspot.com/2021/11/soldersmoke-podcast-234-pssst-kwm-1-vhf.html
2 comments:
Wednesday, November 17, 2021

SolderSmoke Podcast #234: PSSST, KWM-1, VHF Woes, Mighty Midget, TinySA, 17-12 Dual-Bander Advice Needed. MAILBAG

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http://www.gadgeteer.us/17SSB.HTM SolderSmoke Podcast #234 is available:  http://soldersmoke.com/soldersmoke234.mp3 Roots of SolderSmoke: Th...
5 comments:
Monday, November 15, 2021

SSB History: Selling SSB in 1954

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  K9YA Telegraph ran (on Facebook) this ad from 1954.  It provides an interesting view of where phone operations were in that year.  Note t...
Saturday, November 13, 2021

"First Wireless" 1922 book by Allen Chapman with Foreword by Jack Binns (free download)

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  The cover caught my eye.  Thanks to the K9YA Telegraph for posting it.  I think it captures the allure of radio that most of us felt when ...
7 comments:
Friday, November 12, 2021

Mate for the Mighty Midget with 6 kHz Ceramic Filter

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I built this receiver back in 1998, but I continue to have fun tinkering with it. I wrote an article about it for "Electric Radio"...
1 comment:
Thursday, November 11, 2021

Scott WA9WFA's Beautiful HBR-13 Receiver (3 videos)

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This is Scott WA9WFA's first homebrew construction project.  He did an amazing job on a very complex project:  a 13 tube superhet receiv...
1 comment:
Wednesday, November 10, 2021

Right to Repair Update

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Allan WA9IRS sent me this article.  Thanks Allan.   https://www.digitalengineering247.com/article/right-to-repair-movement-attracting-attent...
5 comments:
Tuesday, November 9, 2021

Zigbee Radios on the Ingenuity Mars Helicopter

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In his recent interview with Eric Guth , Courtney Duncan N5BF told us that the communication between the Ingenuity helicopter on Mars and th...
1 comment: