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Blogs and Websites and Groups
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The last print edition of the World Radio TV Handbook will be in 2026... - The *World Radio TV Handbook* (WRTH) has been a valuable source of information for short wave listeners and DX-ing enthusiasts for about 80 years. Up t...
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Advancing the Final Assembly of the Mostly Vacuum Tube Transceiver - Yesterday's work effort was dedicated to starting the final wire up process. I should say "fitting" the existing wiring to the new chassis. When the main t...
14 hours ago -
Preserving Radio History in Your Community - Many thanks to SWLing Post contributor Dan Greenall, who writes: I have lived in southern Ontario, Canada my entire life, have been DXing since the late 19...14 hours ago
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Who cares if the A index changes from 15 to 50 just before you start? - As always there are lots of links within the article. Click one! Click them all! Learn all the things by Vince (VE6LK) It’s mid-September and I am once ag...15 hours ago
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The multi-talented VK3YE was on tonight's ABC TV news - Watching the local TV news tonight and was pleasantly surprised to see a familiar face, home brew hero, Peter, VK3YE:Seeing him described as "Bus Expert" l...
16 hours ago -
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Vector Stores in the OpenAI Responses API: An Interview with GPT5 - *[image: Infographic titled “Vector Stores + Responses API: Highlights from the Vail–GPT-5 Interview.” It explains: What it is: persistent document stor...
1 day ago -
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Re: Nuts and Volts is back. - Somewhere, up in my attic, I think, I've got a couple of the old newsprint issues, saved for posterity (because I'm an inveterate pack rat, in other wor...1 day ago
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DXing distant SolarEdge PV optimizer modules (or long-distance propagation of PV system QRM) - How far away can you hear the spurious emissions from a known-noisy PV system? *Quite a racket!* *Figure 1:* The spectrum of a SolarEdge PV system from...
1 week ago -
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HRWB 245 - Projects with Pat Hensley, W5WTH - In this episode our good friend Pat Hensley, W5WTH, joins us to talk about his latest super creative electronics projects and his design process. Pat co...1 week ago
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The Communicator September - October 2025 - *Back With a Fall Issue* This publication, "The Communicator" from Surrey Amateur Radio Communications (SARC), serves as a bi-monthly electronic periodical...
2 weeks ago -
W1WEF - Episode 530 - Jack Schuster - W1WEF In this episode of QSO Today, we sit down with Jack Schuster, W1WEF, whose amateur radio journey spans more than 73 yea...2 weeks 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...
4 months ago -
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...
4 months ago -
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...
5 months ago -
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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 ...
7 months ago -
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...11 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...11 months ago
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Landscapes - %BLOGLNK% Landscapes The post Landscapes appeared first on 28° North Sailing.1 year 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 ...3 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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A battery powered 50W 160m AM transceiver for your backpack - This project is a compact 160m AM transceiver capable of up to 50 watts of fuly modulated carrier, designed for portable use. The transmitter portion uses...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...6 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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A 2 Transistor Transmitter Powered From a 9V Battery - A couple of days ago I built a simple 2 transistor transmitter on a small piece of PCB material. I used the style of construction that seems to be becoming...14 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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- NYC's Radio Row Survives (sort of) in the Bronx
- Excellent Description of the Electret Microphone
- Dino's FB W1FB Crystal Tester
- And Now For Something Completely Different: 70cm FM
- Have You Ever Seen What's Inside a D-104 Crystal E...
- Stop Me Before I Commit an Electronic Atrocity!
- Steve N8NM Gets Modular -- With Both Hardware and ...
- Another LM373 Rig - Pete Is Not Alone!
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SolderStats
Radio Inventor Stamps
On Page 39 of the Nov-Dec 2024 SARC newsletter "The Communicator"
Absorption refrigerators are still used in motorhomes.
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