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Blogs and Websites and Groups
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Unique broadcast from WA2XMN on 42.8 MHz on the 19th of June 2025 - While we are all familiar with the 88 to 108 MHz FM broadcast band today, its origins can be traced back to 1936 with the very first experimental station...
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New Summer, New Radio: Field Testing the Thunderbird - by Sam Duwe (WN5C) I really like homebrew radio. I’m also seeing a pattern: I build through the winter and the spring, get rusty at CW, and then spend the ...22 hours ago
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Carlos’ Illustrated Radio Listening Reports and Recordings of CGTN Radio (China) and Kyodo News (Japan) - Many thanks to SWLing Post contributor and noted political cartoonist, Carlos Latuff, who shares the following illustrated radio listening report of recent...1 day ago
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Iranian man on the train - Today I caught a train from Southern Cross bound for Bendigo. At Footscray a man got on. He looked confused and clearly had almost no English. He was askin...1 day ago
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Re: VOA Bethany / WLWO / WLW - I did a walk through of the Kennedy 707. It was an SX-62. I had one at the time.1 day ago
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A Crystal Set with No External Antenna - In the previous post, I described my recent build of a very simple little TRF receiver for the AM broadcast band. It happened as the result of a month or t...
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One of the Last Places on Earth! - Malden, MA, Cortland St., NYC, Market St., SF, Anaheim, CA, St. Louis, MO and Burbank, CA. These locations share a common bond and that bond is Surplus Ele...
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HRWB 239 - Radio Mobile Path Prediction Software with Roger Coude VE2DBE - In this episode we meet Roger Coude, VE2DBE, the author of Radio Mobile. This amazing software package allows the user to create a cross sectional plot ...2 days ago
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A 15 (and 10) meter high-pass filter for Field Day - *QRM from a transmitter to receivers on lower bands* A friend of mine belongs to a club in a town north of me and he was describing an issue that they'v...
5 days ago -
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File this under Property Tax Assessment District Ghost Stories - So, this is kinda cool and kinda fun! Found this ghost story all about property taxes, assessment districts, Japan, and AI via Maggie Appleton. Ghost ...
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AB4WS - Episode 525 - Jack Prindle - AB4WS Jack Prindle AB4WS, had an early interest in AM broadcast radio, evolving to scanner listening to public safety in his n...1 month ago
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The "George Batterson 1935 CW QSO Party" - Summary - The first *George Batterson CW QSO Party* has concluded and the results are in! The "*GB*" was introduced to honor George Batterson (W2GB), who along wi...
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KK4DAS MB 20 Transceiver Complete - The MB 20 transceiver is now complete. The rig is a homebrew 10-watt 20-meter SSB transceiver. The VFO module was an ebay purchase of a salvaged Yeasu...
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The Communicator May-June 2025 - *Another full issue* Its a big issue, and great articles, along with our regular columnists. Now read in over 165 countries, this issue brings you 120+ pag...
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A Curious 9 MHz Crystal from Mouser Electronics - Just a quick post to share info about a good 9 MHz crystal sold by Mouser Electronics. I last purchased batches of crystals for xtal IF filters back in 2...
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40m Pelican Case SSB Transceiver - See YouTube channels for details: http://www.youtube.com/c/CharlieMorrisZL2CTM *Test code for the LCD and Si5351* #include ...
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Hollow-State Design, 3rd Edition - Hollow-State Design, 3rd Edition is available from: Lulu Press: tinyurl.com/hollowstatedesign3 eBay: search for “hollow-state design” Electric Radio bookst...8 months ago
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I Finally Bought My Dream Airplane - Aviation has been a love of mine since I was a very little person. Living in Nevada, seeing posters and ads for the Reno Air Races, specifically the Texa...8 months ago
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Landscapes - %BLOGLNK% Landscapes The post Landscapes appeared first on 28° North Sailing.9 months ago
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Daylight Again – An all Analog Radio - What’s all this? In 10 seconds, A high performance, 7MHz, 5 watt SSB rig Draws just 24 mA of current 90 dB dynamic range, 80 dB close-in dynamic range 3D ...2 years ago
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New post: A “Walkie-Talkie” SSB transceiver for 14MHz or the higher RF bands - To access this article, please click link: A “Walkie-Talkie” SSB transceiver for 14MHz or higher rf bands3 years ago
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Other Electronic Projects • Re: Can I normalize both Mono Amp Outputs? - radm49 wrote: ↑ Mon Apr 25, 2022 3:56 am qmavam wrote: ↑ Thu Apr 21, 2022 8:57 pm Yes, you can use a wall wart for power, you might need to add a capacit...3 years ago
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Digi-chirp! Digital synthesis of ‘nostalgic’ CW - The bottom ends of 80, 40 and 20m are not what they used to be. For starters, the busiest part is the digital segment where computers talk to computers – l...3 years ago
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Modifications to the Dayton/FDIM-2019 Antuino - The Dayton Antuino has sub-optimal performance. This is a short note on improving it to an 80 db range of measurements. The trouble with Antuino 2.0 (the o...5 years ago
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Raduino as NBFM TX - Here is a neat, 30 minute hack for your Raduino to turn the Si5351 into a pretty stable, solid NBFM transmitter. The hack is to add a varactor diode in ...
7 years ago -
QRP Labs shop! - [image: Shop] All QRP Labs kits may be ordered online securely at the shop, with PayPal payment. *Click here to visit the shop!* *Click!* *Shop! Order...10 years ago
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Hans Summers Homebrew Radio, Electronics and Computing - Radio, Electronics and Computing Projects by Hans Summers I make no claims for technical accuracy, good design, or necessarily even originality for the co...16 years ago
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E. Howard Armstrong on a Czech Stamp
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- How LCD Displays Work (Video)
- An Old but Cool DiFX: The Epiphyte
- Video (Audio) of N2CQR (me) on 40 Meters with BITX...
- DiFX! My New NE602 Rig is On the Air
- VFO Tribal Design Wisdom from Joseph Carr K4IPV (SK)
- HB2HB! BITX40-BITX40 with KC1FSZ
- Pete Juliano's Expulsion from the QRP Hall of Fame
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- Another Thermatron Receiver (video)
- The Soul of the Old Machine
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- Very Useful Toroid Info Web Site
- Video of a REAL Homebrew QRP Contact (by WU2D)
- Discrete Dead-Bug O'scope Pong
- Another Excellent QRP Video from WU2D -- Retro Sol...
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SolderStats
Radio Inventor Stamps
On Page 39 of the Nov-Dec 2024 SARC newsletter "The Communicator"
The "toroids.info" site does belong to Diz.
ReplyDeleteA lot of work has gone into this information. Well worth the 5 irons award.
ReplyDelete